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Southbend SB1053 Lathe User Manual

1. 0 FAST ACTING FUSE 500MA 250V Circuit Breaker 3 E S 2 7 9 U1 V1 4 To Motor To Coolant To End Gear Brake To Control To Spindle Switch Pump Motor Cover Safety Pedal Safety Panel ON OFF 96 95 Switch Page Switch Page 97 Switches 98 98 97 To Power Connection Page 98 South Bend Lathe Co 93 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Electrical Box Master Power Spindle Motor Contactors 6 amp Overload Relay LI Pump Motor Contactors amp Overload Relay 4 Transformer BE M Transformer Circuit Breaker Spindle Pump Motor Circuit Breakers Figure 150 Electrical box 94 South Bend Lathe Co For Machines Mfg Since 3 11 16 Speed Gearhead Lathe Spindle Motor wi LOW oo Ground SPINDLE Junction Box MOTOR f Figure 151 Spindle motor location
2. REF PART DESCRIPTION REF PART DESCRIPTION 50 2 SCREW MO 1X 20 511 PSB10530511 THRUST WASHER 502 512 508 504 54 505 515 506 516 507 57 508 518 509 510 112 South Bend Lathe Co For Machines Mfg Since 3 11 16 Speed Gearhead Lathe Spindle Motor Assembly Ly Up 97 ndi 2 O N lt Oo Ce amp 2 7 G Yy Es 7 0999990 7777777 South Bend Lathe Co 113 16 Speed Gearhead Lathe r JY T S o For Machines Mfg Since 3 11 Spindle Motor Assembly Parts List REF 601 602 603 604 OOD 606 607 608 609 O10 12 615 614 615 616 617 O18 619 O19 619 1 619 1 619 2 619 2 619 5 19 2 619 4 619 4 619 5 PART DESCRIPTION 5610550601 END GEAR COVER ALIGNMENT REF 619 5 620 621 622 625 624 625 626 627 626 629 630 631 632 655 624 635 656 657 636 639 640 641 642 645 644 645 646 PART DESCRIPTION FOBIODAFOO19 b REAR MOTOR BEARING SB1054F 55F 114 South Bend Lathe Co For Machines Mfg Since 3 11 74 v S 16 Speed Gearhead Lathe Saddle amp Cross Slide 1 702 701 Q Mo 70 CC 709 5755 710 717 Ge r4 Ew iw 71 EN 2 uw Ce 712 TL
3. Annually Checking Oil Level The apron has the proper amount of oil when the sight glass shown in Figure 110 15 halfway full Important Keep in mind that the apron one shot oiler uses the oil from the apron reservoir Check the oil level before using the one shot oiler gt tee 8553 m One Shot Oiler Sight Figure 110 Location of apron oil sight glass South Bend Lathe Co For Machines Mfg Since 3 11 B V N 7 E N A 16 Speed Gearhead Lathe Adding Oil Remove the twist off fill cap shown in Figure 111 and add oil until the sight glass 1s halfway full Figure 111 Location of apron fill cap Draining Oil Since the apron oil reservoir supplies the one shot oiler the oil is constantly being refreshed as you refill the reservoir However drain and flush the apron oil reservoir at least once a year to keep it clean Place a catch pan under the apron drain plug shown in Figure 112 loosen the fill plug then use a 6mm hex wrench to remove the drain plug and empty the reservoir Figure 112 Location of apron drain plug One Shot Oiler The one shot oiler shown in Figure 113 lubricates the saddle ways with oil from the apron reservoir To use the one shot oiler to lubricate the ways pull the pump knob out for two or three seconds and then push it in The pump draws oil from the apron reservoir and then forces it through drilled pa
4. 1 M Standard Screwdriver 2 1 Carbide Tipped Dead Center 4 1 Figure 14 Toolbox inventory Dead Center 4 1 P Tapered Spindle Sleeve MT 6 4 1 Q Carriage Handwheel Handle 1 Cross Slide Handwheel Handle 1 S Hex Wrench Set 1 5 10mm 1 T Hex Wrench 1 U Cast Iron Feet eem Etat iia iens uin 8 Installed amp Not Shown Oty e 5 130909 3 Jaw Chuck SB10593 1 e SB1310 10 3 Jaw Chuck SB1054F 55F 1 Note Some inventory components or additional documentation may be shipped inside of the lathe electrical cabinet These items MUST be removed before connecting the lathe to the power source 20 South Bend Lathe Co For Machines Mfg Since 3 11 Cleaning amp Protecting The unpainted surfaces are coated at the factory with a heavy duty rust preventative that prevents corrosion during shipment and storage The benefit of this rust preventative is that it works very well The downside is that it can be time consuming to thoroughly remove Be patient and do a careful job when cleaning and removing the rust preventative The time you spend doing this will reward you with smooth sliding parts and a better appreciation for the proper care of the unpainted surfaces Although there ar
5. 71 Coolant System Service 12 2 Adding Fluid 78 Changing 78 Machine Storage sass 74 Backlash Adjustment 2 2 22 75 Compound 75 Cross 176 Leadscrew End Play Adjustment 76 SERVICE 77 Gib Adjustment sss 77 Half Nut 2 22 78 Feed Rod Clutch Adjustment 79 a e 81 Leadscrew Shear Pin Replacement 82 Gap Insert Removal amp Installation 85 Gan Bono dl 85 Gap MSc AO 85 TROUBLESHOOTING c eee eee eee eee onus 86 ELECTRICAL 89 Electrical Safety Instructions 89 Correcting Phase Polarity Wiring 90 Wiring Overview 91 Component Location Index 92 Electrical Box WIring ssa 93 Electrical dota i 94 Spindle MOPOE 95 Coolant Pump 1 95 2 Speed Motor 2 2 22 96 Control Panel 2 22222 2 97 Spindle ON OFF 97 Power Connection
6. To 2 Speed Motor Switch Page 96 Coolant Pump Wiring __ To Electrical Box Page 93 Figure 152 Coolant pump location CUTTING FLUID PUMP MOTOR South Bend Lathe Co 95 16 Speed Gearhead Lathe E H 3 a T For Machines Mfg Since 3 11 2 Speed Motor Switch 2 SPEED MOTOR SWITCH BOTH SIDES SHOWN To Motor Page 95 To Electrical Box Page 93 P MODEL swith 000 4 Figure 153 2 Speed motor switch 96 South Bend Lathe Co For Machines Mfg Since 3 11 16 Speed Gearhead Lathe Control Panel Wiring Figure 154 Control panel location To Electrical Box Control Panel Switches Figure 154 Page 93 EE rm Ground EMERGENCY SON A Headstock Casting To Electrical Box S Page 93 Spindle ON OFF Switches Spindle ON OFF Switches Figure 155 Figure 155 Spindle ON OFF switches South Bend Lathe Co 97 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Power Connection DISCONNECT SWITCH as recommended To Power Supply Page 96 Additional Component Wiring Gear T bj Te i Cover Safety 95 ___ Work Light Switch End Gear Cover Safety Switch Figure 156 COMMON NO Chuck Guard Safety Switch o Chuck Guard Safety Switch Figure 157
7. 5 Recommended Adjustments utut OPERATION 1211 1 Two Speed Motor 5 Operation 1 Spindle Speed Levers amp Chart Chuck amp Faceplate Mounting Feed UORLEOLS PUEDE lyon q Chuck installs UH m OO Registration MarkS ee Pia iu Re pa Rss Chack REMOVAL Tailstock Control Scroll Chuck 1 Foot Brake SB1053 Machine Specifications 9 Mounting WOFPKDIGCO eerta et SB1054F Machine Specifications 9 GB1055F Machine Specifica 5 BOC ERA E SAFETY s n b n ies 13 Positioning Tailstock Understanding Risks of Machinery 13 Basic Machine Safety 2 13 Installing Tooling sseseseesesseseesens eens Additional Metal Lathe Safety 15 Removing Tooling Chuck Saloty 16 Offsetting Tails
8. EE 24 Cross Slide Handwheel Compound Rest Handwheel 51 Spindle Speed 51 Determining Spindle Speed 51 Setting Spindle SD86d 5 02 Configuration Exampl s eerie peer erE aes 02 Power GOL Fei disc x den 53 Power Feed 54 Setting Feed Rate teaser 55 E E N E E E 56 Standard End Gear Configuration 56 Alternate Configuration seo seas ion rad eta d rui 57 Threading OM U1 OSs 58 Setting Threading Controls 58 Apron Controls 59 Thre3d Dal eiea 59 Thread Dial Charie 60 Chip Dra wef 61 Cooldnbs vs 62 ACCESSORIES 2 63 Accessories 41 5 0 mn 63 5555555 65 Maintenance Schedule 65 Cleaning amp 2 2 65 Maintenance Chart iasoer 66 TRC A GI OT ENT 67 PICA SU OC 67 Quick Change Gearbox 2 2 31 68 EEL a EAEN IAEE 68 69 70 Ball Oilers amp Oil 70 Ead
9. ou JI 5 913 uo YIVO Ld 9U JNO SSO puoq unos uo ooueuojureur oq Jo YILI doo 03 SITY 28 SIP 3uourooe doJa uoryrpuoo 3uepooo SUIPICSII SUOTJON AJSUI S 9J51n390egnueur jue ooo IY 1021009 ueo PAo IO XOQI89r UE bE C11 K39jes pue SSS SSS E _ LL dL EC ET LLL sero weg oe ec ec ra oa ec ra oa et er 6 8 2 9 2 1 seq OT oue Heyy e ueuojurejy AIUHUON 34727 pueg 16 Speed Gearhead Lathe e South Bend Lathe Co 66 For Machines Mfg Since 3 11 V N 7 E ry N c A 16 Speed Gearhead Lathe Lubrication NOTICE The following recommended lubrication schedules are based on light to medium usage For heavy use these lubrication tasks may need to be performed more frequently than recommended here Failure to follow reasonable lubrication practices as instructed in this manual could lead to premature failure of lathe components and will void the warranty Headstock Oil Type Mobil DTE Light or ISO 32 E
10. 98 Additional Component Wiring 98 gpl 99 Headstock 99 TOOT DOR desto DINE 105 PTO OM arose DU DDENER RUD EH 109 End 112 Spindle Motor 113 Saddle amp Cross 115 Compound Slide amp Tool Post 118 Bed amp 119 Cabinet Stands amp Panels 121 TO SPOUSE 124 Thread Dial sss meke 126 Micrometer StODP ssssssssssesesessesseennees 126 Steady Best iu edt reni 127 Follow eR NUS EOS 127 Electrical seco patentem usine eit borsa ia INI SUE 128 JAGGOSSOPIOB i ieciecs o dades ad Sae obest Uri pas 129 Front Machine Labels 130 Rear amp Side Machine Labels 131 WARRANTY 4 iisessesesssseesaVekS0 aes see ovas iss 132 For Machines Mfg Since 3 11 INTRODUCTION 16 Speed Gearhead Lathe About This Machine Foreword The screw cutting engine lathe is the oldest and most important of machine tools and from it all other machine tools have been developed It was the lathe that made possible the bui
11. Eno GS Nc Brake Pedal Safety Switch Figure 149 A dim E514 rl Figure 157 Chuck Guard Safety Switch location 922 21 To Electrical Box Page 93 98 South Bend Lathe Co 16 Speed Gearhead Lathe gt k gt an 53 gt RA Ea head N E 99 South Bend Lathe Co 16 Speed Gearhead Lathe JY v S o For Machines Mfg Since 3 11 Headstock 2 100 South Bend Lathe Co 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Headstock 3 101 South Bend Lathe Co 16 Speed Gearhead Lathe Headstock 4 For Machines Mfg Since 3 11 102 South Bend Lathe Co For Machines Mfg Since 3 11 74 v 59 o 16 Speed Gearhead Lathe Headstock Parts List REF PART OPOPNPO AayR gt 11 36 37 38 29 40 4 42 45 44 45 46 DESCKIPTION PSB10530001 OIL FILL CAP REF AT 48 49 55 56 57 58 59 60 62 62 63 64 65 66 67 68 69 70A 70 7 72 75 74 75 76 76 76 77 79 79 50 BI 82 85 BA 85 86 87 BB 89 90 91 92 95 PART DESCRIPTION PSB1I0530047 SIGHT GLASS 3 4 South Bend Lathe Co 103 16 Speed Gearhead Lathe r JY v
12. 760 Bu G 2 750 723 765 e 7 750 M 766 756 Se 720 coe South Bend Lathe Co 115 16 Speed Gearhead Lathe Saddle amp Cross Slide 2 For Machines Mfg Since 3 11 5 4 770 Q2 Viewed from Beneath 769 DDD 3 745 746 116 South Bend Lathe Co For Machines Mfg Since 3 11 74 v S o 16 Speed Gearhead Lathe Saddle amp Cross Slide Parts List REF 701 702 105 704 703 706 707 708 709 710 711 712 715 712 714 19 716 717 718 719 720 721 722 120 724 729 726 727 720 729 720 751 752 755 754 120 PART DESCRIPTION 220701 GIB ADJUSTMENT SCREW COOLANT NOZZLE 3 8 PT X 24 COOLANT STAND PIPE W VALVE 3 8 PT REF 757 755 709 740 741 742 745 744 745 746 747 746 749 750 752 799 754 729 756 Tar 756 709 760 761 762 763 764 765 766 767 766 769 770 PART DESCRIPTION PSBI0530736 HANDWHEEL HANDLE PIPE ADAPTER 1 8 PT X 4MM South Bend Lathe Co 117 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Compound Slide amp Tool Post We 1 b 817 N O26 7 CIDA 272 DA 24 REF PART DESCRIPTION REF PART DESCRIPTION 201 PSB10530201 TOOL POST LEVER 617 P5B10530817 GRADUATE
13. Aligning Tailstock to Spindle Centerline This is an essential adjustment that should be verified or performed each time the tailstock is used to turn concentric workpieces between centers or immediately after offsetting the tailstock when turning a taper If the tailstock is not aligned with the spindle centerline when it is supposed to be turning results will be inaccurate along the length of the workpiece ltems Needed Qty Hex Wrench 6mm oerte rsen 1 Wrench LIMIN 1 Round Stock 2 6 2 Precision Level eee 1 To align the tailstock offset to the spindle centerline 1 Use the precision level to make sure the bedway is level from side to side and from front to back If the bedway is not level correct this condition before continuing with this procedure refer to Leveling amp Mounting on Page 24 2 Center drill both ends of one piece of round stock then set it aside for use in Step 5 E OPERATION For Machines Mfg Since 3 11 3 Usethe other piece of round stock to make a dead center and turn it to a 60 point as illustrated in Figure 52 Figure 52 Turning a dead center Note As long as this dead center remains in the chuck the point of the center will remain true to the spindle centerline The point will have to be refinished whenever the center 1s remo
14. Feed rate and spindle speed must be considered together Keep in mind that the feed rate is expressed in the amount of travel per revolution of the spindle The sources you use to determine the optimum spindle speed for an operation will also provide the optimal feed rate to use with that spindle speed Often the experienced machinist will use the feeds and speeds given in their reference charts or web calculators as a starting point then make minor adjustments to the feed rate and sometimes spindle speed to achieve the best results The carriage can alternatively be driven by the leadscrew for threading operations However this section only covers the use of the power feed option for the carriage and cross slide components for non threading operations To learn how to power the carriage for threading operations refer to Threading on Page 58 NOTICE To avoid damaging the machine NEVER attempt to engage carriage with leadscrew and feed rod at the same time NOTICE Never change spindle speeds while spindle is moving Severe machine damage will occur 16 Speed Gearhead Lathe Power Feed Controls Use Figures 77 80 and the following descriptions to become familiar with the locations and functions of the controls that you will use to set up the correct power feed for your operation Note Before using power feed you may have to re configure the end gears depending on how they are set up Refer to E
15. For Machines Mfg Since 3 11 If you need replacement parts or if you are unsure how to do any of the solutions given here feel free to call us at 360 734 1540 Machine does not start or a circuit breaker trips Loud repetitious noise coming from lathe at or near the motor Motor is loud when cutting or bogs down under load 1 1 2 1 2 3 Possible Cause First time operation only Lathe 1s wired out of phase Stop button is engaged or at fault Spindle switch es are at fault Power supply is switched OFF at master power switch or breaker Wall fuse circuit breaker is blown tripped short in electrical system start up load too high for circuit Fuse has blown in machine electrical box One or more safety switches or brake switch are engaged Thermal overload relay has tripped Motor connection wired incorrectly Safety brake switch es at fault Contactor not getting energized has burned contacts Wiring is open has high resistance Motor is at fault Pulley set screws or keys are missing or loose Motor fan is hitting the cover Excessive depth of cut or feed rate Spindle speed or feed rate wrong for cutting operation Cutting tool 1s dull Possible Solution Correct out of phase wiring refer to Page 90 for details Rotate button clockwise until 1t pops out to reset it for operation replace if not working properly Replace bad switch es Make s
16. Nominal Voltage eee 440V A80V dvor 525555 U 60 Hz Idco 3 Phase Circuit Rating 15 Amps Connection Hardwire with Locking Switch A power supply circuit includes all electrical equipment between the main breaker box or fuse panel in your building and the incoming power connections inside the machine This circuit must be safely sized to handle the full load current that may be drawn from the machine for an extended period of time A CAUTION For your own safety and protection of property consult a qualified electrician if you are unsure about wiring practices or electrical codes in your area Note The circuit requirements listed 1n this manual apply to a dedicated circuit where only one machine will be running at a time If this machine will be connected to a shared circuit where multiple machines will be running at the same time consult a qualified electrician to ensure that the circuit is properly sized for safe operation South Bend Lathe Co For Machines Mfg Since 3 11 Grounding Requirements In the event of certain types of malfunctions or breakdowns grounding provides a path of least resistance for electric current in order to reduce the risk of electric shock Improper connection of the equipment grounding wire can result in a risk of electric shock The wire with green insulation with or without yellow strip
17. To set the micrometer stop 1 DISCONNECT LATHE FROM POWER 2 Loosen the cap screws shown in Figure 70 then use the carriage handwheel to position the carriage and cutting tool at the desired stopping point Cap Screws Stop Rod Figure 70 Micrometer stop 3 Move the micrometer stop up to the carriage use the graduated dial to fine tune the position then retighten the cap screws loosened in Step 2 4 Verify that tooling will not make contact with chuck jaws or other components South Bend Lathe Co For Machines Mfg Since 3 11 Manual Feed The handwheels shown in Figure 71 and described below allow the operator to manually move the cutting tool Cross siad Ml Handwheel 5 Compound Rest Handwheel Figure 71 Carriage Controls Carriage Handwheel The carriage handwheel moves the carriage left or right along the bed It has a graduated dial with 0 01 increments and one full revolution moves the carriage 0 80 Cross Slide Handwheel The cross slide handwheel moves the tool toward and away from the work Adjust the position of the graduated scale by holding the handwheel with one hand and turning the dial with the other The cross slide handwheel has a direct read graduated dial which shows the total amount of material removed from the diameter of the workpiece 1 half the amount of tool movement The dial has 0 001 0 02mm increments and one full revolution moves the
18. Bearin Shielded amp Permanently Shielded amp Permanently Shielded amp Permanently NENNEN Information ros Side Travel o om 10 South Bend Lathe Co For Machines Mfg Since 3 11 INTRODUCTION 16 Speed Gearhead Lathe tenure sess _ _SB1054F Smiossr Headstock Information Dimensions on n y South Bend Lathe Co 11 16 Speed Gearhead Lathe INTRODUCTION For Machines Mfg Since 3 11 105_ SOSSE Construction Meehanite Castings with Induction Hardened Ways Induction Hardened Ways Induction Hardened Ways Other Taiwan Some Taiwan Some Taiwan Some Country of Origin Components Made in Components Made in Components Made in USA amp Japan USA amp Japan USA amp Japan Location ID Label on Rear Side of ID Label on Rear Side of ID Label on Rear Side of pepe Left Stand Left Stand Left Stand Assembly Time Time Approximately 1 Hour Approximately 1 Hour Approximately 1 Hour 12 South Bend Lathe Co For Machines Mfg Since 3 11 SAFE 16 Speed Gearhead Lathe Understanding Risks of Machinery Operating all machinery and machining equipment can be dangerous or relatively safe depending on how 1615 installed and maintained and the operator s experience common sense risk awareness working conditions and use of personal protective equipment safety glasses respirators
19. Components on a machine that is not level may slowly twist due to the dynamic loads placed on the machine during operation For best results use a precision level that is at least 12 long and sensitive enough to show a distinct movement when a 0 003 shim approximately the thickness of one sheet of standard newspaper is placed under one end of the level See the figure below for an example of a high precision level Figure 21 Example of a precision level South Bend Lathe Co For Machines Mfg Since 3 11 To level the machine use a precision level to make sure the bedways are level from side to side and from front to back If using the included leveling pads see Figure 22 place them under the six leveling jack bolt locations then adjust the bolts to level the lathe Jack Bolts Figure 22 Leveling pads and screws If using mounting hardware that does not allow for adjustment level the lathe by placing metal shims between the lathe base and the floor before bolting it down Bolting to Concrete Floors Lag screws and anchors or anchor studs below are two popular methods for bolting machinery to a concrete floor We suggest you research the many options and methods for mounting your machine and choose the best one for your specific application EA Lag Screw and Anchor PS PPP m enu 5 AM 311 1 IL PTT we WM Figure 23 Common types of fasteners for bolting machinery to
20. Find the TPI threads per inch that you want to cut in the left column of the thread dial chart see Figure 89 then reference the dial number to the right of it The dial numbers indicate when to engage the half nut for a specific thread pitch The thread dial chart can also be found on the front of the thread dial housing 4 8 12 16 20 24 Numbered Position Numbered Position 1 2 3 4 2232 42 Position 13 1 3 or 2 4 274 234 Position 374 334 1 Only 2 Same as Metric Threads Figure 89 Thread dial chart Note The thread dial 1s not used for metric threads or diametral and modular gear turning You must leave the half nut engaged from the beginning until the threads gears are complete for these types of operations The following examples explain how to use the thread dial chart TPI Divisible By 4 For threading a TPI divisible by four use any line on the thread dial see Figure 90 4 8 1 2 16 20 24 Any Position 28 32 36 40 44 48 56 60 72 Figure 90 Any position on the dial for threading divisible by 4 60 OPERATION For Machines Mfg Since 3 11 Even TPI Not Divisible By 4 For threading a TPI that is even but not divisible by 4 use any of the non numbered lines on the thread dial see Figure 91 2 6 10 14 18 22 26 30 54 Non Numbered Position Figure 91 Marks are selected on the dial for threading even not divisible by 4 Odd
21. J Figure 8 Carriage controls A 4 Position Tool Post Lever Locks the tool K holder in four possible positions B Compound Rest Handwheel Moves the L cutting tool back and forth relative to the workpiece Includes an indirect read graduated dial which represents actual tool M movement C Coolant Valve Lever Controls the flow of N coolant from the nozzle D One Shot Oiler Draws oil from the apron reservoir and lubricates the bed ways underneath the saddle E Carriage Lock Bolt Secures the carriage in place for greater rigidity and accuracy when using the cross slide or compound rest for machining operations Thread Dial Indicates when to engage the half nut during inch threading operations Spindle ON OFF Lever Starts stops and reverses direction of spindle rotation Thread Dial Chart For each inch thread displays which number on the thread dial to engage the half nut Half Nut Lever Engages and disengages the half nut for threading operations Ouick Change Feed Direction Knob Changes direction of carriage feed or the cross slide feed without having to stop the lathe and move the headstock feed direction lever Feed Control Lever Engages and disengages the cross slide or carriage feed Carriage Handwheel Moves the carriage manually along the bed Apron Houses the carriage gearing and controls Cross Slide Handwheel Moves the cross slide toward or away from the workpiece Includ
22. Note If the tooling has an open hole in the end but is too short to be exposed in the drift slot for removal then a screw can be threaded into the end of the tool to provide a solid surface for the quill pin to push against when the quill is retracted for tool removal To install tooling in the tailstock 1 With the tailstock locked in place unlock the quill then use the handwheel to extend it approximately 1 2 Thoroughly clean and dry the tapered mating surfaces of the quill and the center making sure that no lint or oil remains on the tapers Note If the tapered tool shaft has a tang align 1t with the indent the back of the quill before seating it 3 With a firm and quick motion insert the tool into the quill Check to see if it is firmly seated by attempting to twist it a firmly seated tool will not twist 4 Unlock the tailstock and move it until the tip of the tool 1s close to but not touching the workpiece then re lock the tailstock 5 Start spindle rotation unlock the quill then turn the tailstock handwheel clockwise to feed the tool into the workpiece 40 South Bend Lathe Co For Machines Mfg Since 3 11 Removing Tooling 1 2 Use a shop rag to hold the tool Rotate the tailstock handwheel counterclockwise until the tool is forced out of the quill If the tool does not come loose by retracting the quill extend the quill and use a drift key in the slot shown in Fig
23. The scale increments are arbitrary 8 South Bend Lathe Co For Machines Mfg Since 3 11 INTRODUCTION 16 Speed Gearhead Lathe Product Specifications P O Box 2027 Bellingham WA 98227 U S A PHONE 360 734 1540 South Bend Lathe Co www southbendlathe com MODEL SB1053 SB1054F SB1055F 16 SPEED GEARHEAD LATHES Model Number _ SB1054F Product Dimensions 2970 3080 3300 Shipping Dimensions a h Width side to side Depth back Heili 94 x 44 x 69 in 94 x 45 x 69 in 109 x 45 x 69 1n Electrical Power Requirement 220V 3 Phase 60 Hz 440V 3 Phase 60 Hz 440V 3 Phase 60 Hz Full Load Current Rating m ud 10 15A 10 23A Minimum Minimum Circuit Size Size Magnetic Thermal Magnetic Thermal Magnetic Thermal Switch Protection Protection Protection Switch 7 7 Plug Included Included e to TT to 2 Recommended Plug Outlet Type NEMA L15 30 Disconnect Switch DR South Bend Lathe Co 9 16 Speed Gearhead Lathe INTRODUCTION For Machines Mfg Since 3 11 Model Number 881059 _ SB1054F SB105SF Main Motor 1725 RPM 850 RPM 850 RPM V Belt amp Gear V Belt amp Gear V Belt amp Gear Bearin Shielded amp Permanently Shielded amp Permanently Shielded amp Permanently caminga E Coolant Motor
24. To reduce the risk of this hazard read and understand this document and seek additional training from an experienced chuck user before using this chuck 16 South Bend Lathe Co For Machines Mfg Since 3 11 Preparation Overview The purpose of the preparation section is to help you prepare your machine for operation The list below outlines this basic process Specific steps for each of these points will be covered in detail later in this section The typical preparation process is as follows 1 Unpack the lathe and inventory the contents of the box crate 2 Clean the lathe and its components 3 Identify an acceptable location for the lathe and move it to that location 4 Level the lathe and either bolt it to the floor or place it on mounts 5 Assemble the loose components and make any necessary adjustments or inspections to ensure the lathe is ready for operation 6 Check lubricate the lathe 7 Connect the lathe to the power source 8 Test run the lathe to make sure it functions properly 9 Perform the spindle break in procedure to prepare the lathe for operation South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe Things You ll Need To complete the preparation process you will need the following items For Lifting and Moving e A forklift or other power lifting device rated for at least 5000 lbs e Lifting straps rated for at least 5000 lbs each e Optional Chain w safety
25. d SB GG O6 O00 e KoSo 1 L1 3 L2 5 L3 21 NC 1 L1 3 L2 5 L3 21 NC MASTER POWER 1 L1 3 L2 5 L3 7 L4 1 Li 3 L2 5 E CONTACTOR CONTACTOR CONTACTOR CONTACTOR S Allen Bradley Allen Bradley SWITCH Allen Bradley Allen Bradley 16 01 16 01 4 4 99090 x 606060000207 6 6 6 2 211 4 6 T3 S 4 T2 6 T3 S L1 L2 214 4 673 8T4 2 a42 ols 8 14 wi CA WE ih WR w 10 4 10 11 o AB 193 Class 10A pne 193 Tip ve pet Pump Motor 5 1053 93 Contactors amp C C2301 0 25 E Overload Relay RAG 97 98 1601 97 98 U 21 W1 Spindle Motor Overload Relay AMP SB1053 O L Relay 4 Amp Range 2 220V for SB1053 Only m Spindle Pump L3 L1 440V for SB1054F amp Motor Circuit beooo SB1055F Breakers OO OOO A TIME 0 220 380 400 415 440 S232 DELAY TRANSFORMER 0 o FUSE Suenn Liang e SB1054F amp 25 SP TBSW zx x SB1055F Sh 4 6 D20 20A oO x Transformer 69
26. 1 Lubrication Frequency Before and After Use Proper lubrication of ball oilers 1s done with a pump type oil gun that has a plastic or rubberized cone tip We do not recommend using a metal needle or lance tips that can push the ball too far into the break the spring seat and cause the ball to fall into the oil galley Lubricate the ball oilers before and after machine use and more frequently under heavy use When lubricating ball oilers first clean the outside surface to remove any dust or grime Push the rubber or plastic tip of the oil can nozzle against the ball oiler to create a hydraulic seal then pump the oil can once or twice If you see sludge and contaminants coming out of the lubrication area keep pumping the oil gun until the oil runs clear When finished wipe away any excess oil Add oil to the feed control lever gearing oil cup until the cup is full The oil will slowly drain onto the gearing Refer to Figures 114 116 to identify the locations of each oil device 70 reed Contra EXC Figure 114 Carriage ball oilers and oil cup Ouill Leadscrew Ouill Barrel amp Nut al Figure 115 Tailstock ball oilers Leadscrew End Bearing To check the oil level remove the fill cap and look inside the reservoir Figure 116 The oil level must remain full to keep the leadscrew bearing adequately lubricated Pour oil in the reservoir until it is as full as possible
27. 1001 1002 100 1004 1005 1005 1006 1006 1007 1008 1009 1010 1011 1012 1015 1014 1015 1016 1017 1015 1019 1020 1021 1022 1022 1025 1024 1024 1025 1026 1027 1028 1029 1030 1031 1032 PART DESCRIPTION PSB10531001 CHIP DRAWER SB1053 54F PSBIOSSF1001 CHIP DRAWER SB1IO55F REF 1055 1034 1035 1036 1057 1055 1059 1040 1040 1041 1042 104 1044 1044 1045 1046 1046 1046 1047 1046 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1060 1 1060 2 1060 5 1060 4 1060 5 1060 6 16 Speed Gearhead Lathe PART DESCRIPTION I x lt Z 4 T N my mt I 2 4 Y A lt 3G amp E e 3E l 75 Oye O 3 Ba gt lt lt Sis m 8 A HUCK GUARD LIMIT SWITCH TZ9212 540 BACK SPLASH SB1053 54F BACK SPLASH SBIO55F COOLANT PUMP ACCESS PANEL PS6G8M COOLANT TANK 11 3 LITER COOLANT PUMP 1 8HP 220V 3PH SB1053 COOLANT PUMP 1 5 440V 3PH SB1054F 55F PIPE NIPPLE 3 8 PT X 3 8 PH COOLANT HOSE 3 8 X 72 SB1053 COOLANT HOSE 3 8 X 72 SBIO54F COOLANT HOSE 3 8 X 78 SBIO5S5F T S za XJ D 7 v gt lt CABINET STAND SUPPORT ROD COOLANT CATCH TRAY EVELING PAD SUPPORT ROD FLAT WASHER PN43 CABINET STAND SUPPORT ROD 2 SPEED MOTOR SWITCH CHUCK GUARD CLEAR PANEL P
28. Figure 29 to the OFF position and point the fluid nozzle into the chip drawer A Troubleshooting section is provided starting on Page 86 to assist you with solutions if a problem occurs or if the lathe does not function as described in this section Coolant mp Switch If you need additional help after reviewing the troubleshooting section or you are not confident troubleshooting the machine on your own contact our tech support at 360 734 1540 To test run your machine 1 Read and follow the safety instructions STOP at the beginning of the manual take all 4 Button rs required safety precautions and make sure all previous preparation steps discussed Figure 29 Control panel in this manual have been followed and completed 7 To ensure the carriage components do not unexpectedly move when the lathe is started 2 Clear away all tools and objects used during move the feed range lever to the neutral assembly lubrication and preparation middle position see Figure 30 3 Make sure the master power switch shown i Feed in Figure 28 is turned OFF Range Lever 40 60 100 165 245 2 80 120 200 330 490 CDA nonce Ny e THREAD AND FEED Aeng 4 mm FM in c A Newerd desired y v 1th toleste inte piece EXCEED SPINDLE SPEED OF 330 RPM Master P
29. Figure 63 It is used on long slender parts to prevent workpiece deflection The carriage and compound rest have locks that from the pressure of the cutting tool during can be tightened to provide additional rigidity operation Adjust the follow rest fingers in the during operation especially during heavy cuts same manner as the those on the steady rest o See Figure 64 to identify the locations of the Note To reduce the effects of friction lubricate locks for each device the brass finger tips with generous lubricant during operation Compound Rest Lock Carriage Lock Figure 64 Locations of compound rest and carriage locks Figure 63 Follow rest attachment South Bend Lathe Co 47 16 Speed Gearhead Lathe Compound Rest The compound rest handwheel has an indirect read graduated scale This means that the distance shown on the scale represents the actual distance the cutting tool moves The base of the compound rest has another graduated scale used for setting the cutting tool to a specific angle Graduated Dial Incronmielils eerte 0 001 0 02mm One Full Revolution 0 100 2 54mm Tool Needed Oty Wrench 14mm 1 To set the compound rest at a certain angle 1 Loosen the two hex nuts at the base of the compound rest 1 of 2 shown in Figure 65 Compound Rest Qa 8 S acis N DE dm DE e Angle Sc
30. Inserting camlock studs into spindle bores South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe 5 Incrementally tighten the camlocks in a criss cross or star pattern to ensure that the chuck seats evenly against the spindle 6 When the chuck 1s fully seated and all the camlocks are tight verify that the cam line is between the two V marks on the spindle nose as shown in the following figure Camlock between 6 Figure 38 Cam line positioned between the V marks after the camlocks are fully tightened If the cam line is NOT between the V marks when the camlock is tight the stud may be installed at the incorrect height To fix this adjust the stud height as shown the following figure Make sure to re install the stud cap screw afterward If adjusting stud height does not correct the problem try swapping stud positions on the chuck gt INCORRECT Otud Too High Otud Too Low Turn Out One Turn Turn In One Turn Figure 39 Correcting an improperly installed stud 35 16 Speed Gearhead Lathe 7 Verify that the chuck fits the spindle properly by checking for any gaps between the mating surfaces If there are no gaps proceed to Step 8 If there is a gap remove the chuck re clean the mating surfaces carefully and re install If the problem persists refer to Troubleshooting 8 Verify that the chuck spindle tapers are seated firmly togeth
31. Page 72 panel to turn the pump ON for detailed instructions on how to add or change fluid Check the coolant regularly and promptly change it when it becomes overly dirty or rancid or as recommended by the fluid manufacturer Adjust the flow of coolant by using the valve lever near the base of the nozzle hose Important Promptly clean any splashed fluid from the floor to avoid a slipping hazard Water Synthetic Sulferized Mineral deii Soluble Oil Coolants Aluminum Bronze Cast iron Low Carbon Steel Alloy Metals Stainless Steel General Note Coolants are used for heavy duty lathe operations and production turning Oil water emulsions and synthetic cutting fluids are the most common for typical lathe operations Sulferized oils often are used for threading For small projects spot lubrications can be done with an oil can or brush or omitted completely Figure 98 Coolant selection table 62 South Bend Lathe Co For Machines Mfg Since 3 11 ACC ESSO T2 16 Speed Gearhead Lathe SB1239 MT 4 High Performance Live Center Accessories South Bend brand live centers are the best cen ters in the industry made with pride and uncom This section includes the most common a promising quality accessories available for your lathe which may be available through your local South Bend Lathe Co dealer If you do not have a dealer in your area please call us at 360 734 1540 or email us at cs southbe
32. S For Machines Mfg Since 3 11 Headstock Parts List REF 94 29 96 96 99 100 101 102 103 104 103 106 107 108 109 10 11 16 117 116A 118 PART DESCRIPTION 10550094 SFINDLE D1 6 MT 6 REF 19 120 121 22 123 PART DESCRIPTION 44 KEY 6X6 X16 124A FOB105320124 GEAR ASSEMBLY 21 42T 124 120 126 127 126 129 150 151 152 155 154 155 156 157 156 12 104 South Bend Lathe Co For Machines Mfg Since 3 11 DA v S 16 Speed Gearhead Lathe Gearbox 1 25 105 South Bend Lathe Co 16 Speed Gearhead Lathe gt A v S o For Machines Mfg Since 3 11 Gearbox 2 291 202 285 202 BSS ac 204 5 10 SR 282 gt E Sag BE 2025 250 294 295 Wx yy NS 5 Q gt 319 511 555 520 290000 2 2015 214 55 olo 106 South Bend Lathe Co For Machines Mfg Since 3 11 DA v 59 o 16 Speed Gearhead Lathe Gearbox Parts List REF PART DESCRIPTION REF PART DESCRIPTION 201 P5B10530201 GEAR SHAFT 247 5 10550247 GEAR 351 207 253 27 26 Slol 22 207 224 270 225 27 226 272 227 273 226 zn 229 275 220 276 25 27 222 278 225 276 237 285 24 267 South Bend Lathe Co 107 16 Speed Gearhead Lathe JY v S For Machines Mfg Since 3 11 Gearbox Parts List REF PART DESC
33. and high precision parts this lathe excels at making fine tools dies thread gauges jigs and precision test gauges however it is by no means delicate Thick castings heavy weight and quality construction throughout provide the necessary brawn for demanding production and manufacturing tasks Features This 16 Speed Gearhead Lathe is packed with standard features and equipment such as a complete coolant system easy to clean chip drawer one shot way lubrication system included steady and follow rests chuck guard adjustable work lamp foot brake powered cross feed 3 and 4 jaw chucks and faceplate Models SB1054F and SB1055F also feature a Fagor 2 axis 201T DRO Spindle speeds are controlled by a 2 speed motor and convenient headstock levers which allow the operator to quickly set the spindle speed within the available range of 40 2000 RPM Bed ways are constructed with Meehanite castings that are precision hardened and ground in the traditional 3 V prismatic design long used on South Bend Lathes for accuracy durability and rigidity Headstock features quick change gear controls and an adjustable clutch mechanism that can be set to disable the feed rod to prevent crash damage Spindle is a D1 6 camlock type with an MT 6 taper and 26 bore Tailstock quill has an MT 4 taper and offers 6 of travel Finally to ensure long lasting accuracy in the most demanding shops the spindle is equipped with Japanese NTN
34. and let them soak for a few minutes 3 Wipe off the surfaces If your cleaner or degreaser is effective the rust preventative will wipe off easily Note To clean off thick coats of rust preventative on flat surfaces such as beds or tables use a PLASTIC paint scraper to scrape off the majority of the coating before wiping it off with your rag Do not use a metal scraper or it may scratch the surface 4 Repeat Steps 2 3 as necessary until clean then coat all unpainted surfaces with a quality metal protectant or light oil to prevent rust NOTICE Remove the end gear cover and end gears and use a stiff brush with mineral spirits to clean the rust preventative from the gears and shafts DO NOT get any cleaner or rust preventative on the V belts as it could damage them or make them slip during operations If the belts do become contaminated replace them 91 16 Speed Gearhead Lathe Location Physical Environment The physical environment where your machine is operated is important for safe operation and longevity of parts For best results operate this machine in a dry environment that is free from excessive moisture hazardous or flammable chemicals airborne abrasives or extreme conditions Extreme conditions for this type of machinery are generally those where the ambient temperature 1s outside the range of 41 104 F the relative humidity is outside the range of 20 95 non condensing or the
35. back and forth until it moves freely then try again 16 Speed Gearhead Lathe V 7 E N A r4 M For Machines Mfg Since 3 11 Cross Slide Tools Needed Hex Wrench 3mm 08 1 Hex Wrench 5mm nennen 1 The cross slide backlash 1s adjusted by loosening all four cap screws shown in Figure 122 then tightening the center set screw This will push down on a wedge and force the leadscrew nut apart taking up lash between the nut and leadscrew To adjust the backlash remove the compound rest and loosen the four cap screws Then rock the cross slide handwheel back and forth and tighten the set screw slowly until the backlash 1s at approximately 0 002 0 003 as indicated on the handwheel dial If you end up adjusting the nut too tight loosen the set screw tap the cross slide a few times with a rubber or wooden mallet and turn the handwheel slowly back and forth until the handle turns freely then try again Remember to retighten the four cap screws when you are finished Figure 122 Cross slide backlash adjustment screws 6 Leadscrew End Play Adjustment Over time the leadscrew may develop a small amount of end play This can be easily corrected by following this procedure Tools Needed Qty Wrench 1 Hex Wrench 5mm 1 Wrench Z4 1 To remove leadscrew end play 1 DISCON
36. carefully line up the two bores so it slides in easily Chamfer the end of the pin 1f necessary to make it easier to insert Shear Pin Figure 145 Retaining ring positioned with ears in front of pin access groove 12 Replace the clutch front and side covers Figure 143 New shear pin installed in bore 10 With the pin completely seated 1n the bore and the head flush with the leadscrew shoulder slide the shroud washer against the shoulder then rotate the washer 180 to completely cover the head of the shear pin as shown in Figure 144 Figure 144 Shroud washer positioning 84 South Bend Lathe Co For Machines Mfg Since 3 11 sS E RV c 16 Speed Gearhead Lathe Gap Insert Removal amp Installation The gap insert directly under the spindle see Figure 146 can be removed to create additional space for turning large diameter parts The gap insert was installed then ground flush with the bed at the factory to ensure a precision fit and alignment Therefore if the gap insert is removed it may be difficult to re install with the same degree of accuracy E Gap Inser Figure 146 Gap insert Tools Needed Hex Wrenches 6MM Hex Wrench 8mm Wrench Dead Blow Gap Removal 1 Remove the four gap bed cap screws shown in F
37. chuck or faceplate contact a local machine shop for help Adjust gears and establish backlash Replace broken gear or bearing Stop lathe immediately and correct interference problem Reset spindle bearing preload or replace worn spindle bearings Adjust for appropriate spindle speed and feed rate Sharpen tooling or select a better tool for the intended operation Adjust tool height to centerline see Page 49 Tighten gibs see Page 77 Turn the tailstock handwheel until it forces the tapered tool out of quill Clean the taper and bore and re install tapered tool Adjust gib screw s see Page 77 Tighten handwheel fasteners adjust handwheel backlash to a minimum see Page 75 Adjust leadscrew to remove end play see Page 76 Remove gibs clean ways dovetails lubricate and re adjust gibs Loosen gib screw s slightly and lubricate bedways see Page 77 Slightly loosen backlash setting see Page 76 Lubricate bedways and handles Check for debris clean and retighten Re install cutting tool so no more than of the total length is sticking out of tool holder Adjust gib screws at affected component see Page TT Replace or resharpen cutting tool Use the recommended spindle speed South Bend Lathe Co 87 16 Speed Gearhead Lathe TROUBLESHOOTING For Machines Mfg Since 3 11 Symptom Possible Cause Possible Solution Workpiece is 1 Headstock and tailstock are not 1 Realign t
38. development of rust and corrosion the lathe must be properly prepared if 1t will be stored for a long period of time Doing this will ensure the lathe remains in good condition for later use To prepare the lathe for short term storage up to one year 1 Pump out the old coolant and remove and blow out the lines with compressed air and a few drops of way oil DISCONNECT LATHE FROM POWER Thoroughly clean all unpainted bare metal surfaces then apply a liberal coat of way oil Lubricate the machine as outlined the lubrication section Be sure to use the oil gun to purge all ball oilers and oil passages with fresh oil Cover the lathe and place it in a dry area that 1s out of direct sunlight and away from hazardous fumes paint solvents or gas Fumes and sunlight can bleach or discolor paint and make the chuck guard cloudy Once or twice a month depending on the ambient humidity levels in the storage environment wipe down the machine as outlined in Step 3 Slide the carriage micrometer stop tailstock and steady rest down the lathe bed to make sure that way spotting 1s not beginning to occur Every few months rotate all gear driven components by hand a few times in several gear selections This will keep the bearings bushings gears and shafts well lubricated and protected from corrosion especially during the winter months South Bend Lathe Co For Machines Mfg Since 3 11 B V N 7 E N A
39. drive them deeper into moving surfaces and could cause sharp chips to fly into your face or hands Besides the ways all other unpainted and machined surfaces should be wiped down daily to keep them rust free and in top condition This includes any surface that is vulnerable to rust if left unprotected especially any parts that are exposed to water soluble coolant Typically a thin film of oil is all that is necessary for protection 465 Uul02 euje puequinos pueq u3nog ooueuoj3ureui e se quoeo dooy q3juour YOO osn sry Jo sordoo GLOT 9L9 09 OFST VEL 098 jue 00 92IAJOS enuue jxou uoudy Yo speoy 92IAJ0S enuue 4SET Jo 8 31 o poou Xoqueor osueyy NoA uouquA pue enuue INOA 3se uouA Jo yous suro31 oorAJoSs osoqu 921AJo0S SSN KALIY u93Jo IBI 99IAJOS enuuy is 92 Un x gt o SUI93I 1 JY UIM 8 se puoq unos popnjour ooueuojureur oq EY uo jeu poamboa sr ooueuojureuir posoev q sr
40. environment is subject to vibration shocks or bumps Electrical Installation Place this machine near an existing power source Make sure all power cords are protected from traffic material handling moisture chemicals or other hazards Make sure to leave access to a means of disconnecting the power source or engaging a lockout tagout device Lighting Lighting around the machine must be adequate enough that operations can be performed safely Shadows glare or strobe effects that may distract or impede the operator must be eliminated PREPARATION For Machines Mfg Since 3 11 Weight Load Refer to the Machine Specifications for the weight of your machine Make sure that the surface upon which the machine is placed will bear the weight of the machine additional equipment that may be installed on the machine and the heaviest workpiece that will be used Additionally consider the weight of the operator and any dynamic loading that may occur when operating the machine Space Allocation Consider the largest size of workpiece that will be processed through this machine and provide enough space around the machine for adequate operator material handling or the installation of auxiliary equipment With permanent installations leave enough space around the machine to open or remove doors covers as required by the maintenance and service described in this manual A CAUTION Children or untrained people may be seriou
41. etc The owner of this machinery or equipment is ultimately responsible for its safe use This responsibility includes proper installation a safe environment personnel training and usage authorization regular inspection and maintenance manual availability and comprehension application of safety devices integrity of cutting tools or accessories and the usage of approved personal protective equipment by all operators and bystanders The manufacturer of this machinery or equipment will not be held liable for injury or property damage from negligence improper training machine modifications or misuse Failure to read understand and follow the manual and safety labels may result in serious personal injury including amputation broken bones electrocution or death The signals used in this manual to identify hazard levels are defined as follows harm WILL occur AWARNING harm COULD occur Death or catastrophic Death or catastrophic Moderate injury or fire MAY occur A CAUTIO NOTICE Machine or property damage may occur Basic Machine Safety Owner s Manual All machinery and machining equipment presents serious injury hazards to untrained users To reduce the risk of injury anyone who uses THIS item MUST read and understand this entire manual before starting Personal Protective Equipment Operating or servicing this item may expose the user to flying debris dust smoke danger
42. hook rated for at least 5000 lbs each e Two other people for moving machine Two 12 2x6 s e Precision level For Power Connection e A power source that meets the minimum circuit requirements for this machine review the Power Supply section on Page 19 for details e An electrician or qualified service personnel to ensure a safe and code compliant connection to the power source For Assembly Cotton rags Mineral spirits Quality metal protectant oil Safety glasses Wrench or socket 21mm Wrench or socket 19mm Floor mounting hardware as needed Standard screwdriver 2 17 16 Speed Gearhead Lathe Power Supply Requirements Availability Before installing the machine consider the availability and proximity of the required power supply circuit If an existing circuit does not meet the requirements for this machine a new circuit must be installed To minimize the risk of electrocution fire or equipment damage installation work and electrical wiring must be done by a qualified electrician in accordance with all applicable codes and standards AWARNING Serious injury could occur if you connect the machine to power before completing the setup process DO NOT connect to power until instructed later in this manual Full Load Current Rating The full load current rating is the amperage a machine draws at 100 of the rated output power On machines with multiple motors this is the amperage drawn by the
43. if the controls are set incorrectly when the break in procedure 1s started NOTICE Do not leave the lathe unattended during the Spindle Break In procedure If your attention is needed elsewhere during this procedure stop the lathe and restart the procedure later from the beginning To perform the spindle break in 1 Successfully complete the Test Run procedure beginning on Page 28 2 Set the spindle speed for 40 RPM refer to the Setting Spindle Speed subsection on Page 51 for detailed instructions 3 Run the lathe for 10 minutes 4 Turn the lathe OFF and wait until the spindle is completely stopped 5 Repeat Steps 2 4 for each of the remaining 15 spindle speeds 39 PREPARATION For Machines Mfg Since 3 11 6 Set the spindle speed to 40 RPM and let the lathe run for a final 15 minutes to allow it to cool down then turn the lathe OFF 7 Change the oil in the headstock quick change gearbox and apron reservoirs as instructed in the Lubrication subsection on Page 67 8 Check and if necessary re tension the V belts as instructed in the V Belt subsection on Page 80 Congratulations The spindle break in is complete Recommended Adjustments For your convenience the adjustments listed below have been performed at the factory However because of the many variables involved with shipping we recommend that you at least verify the following adjustments to ensure the best possible re
44. room for you to remove the shear pin Retaining Ring bu Figure 141 Shear pin access Use the magnet to remove the shear pin head Rotate the lathe spindle to line up the inner and outer bores as shown in Figure 142 and use the magnet to remove the other half of the broken shear pin cod N PI D Washer Inner Bore Figure 140 Shroud washer and shear pin alignment 4 Put safety glasses NOTICE If you fabricate your own shear pin make sure to use the material and dimensions specified Figure 142 Shear pin bores aligned in Figure 138 Otherwise the shear pin may not provide the intended protection and lathe damage could result South Bend Lathe Co 83 16 Speed Gearhead Lathe 206 E RV r4 For Machines Mfg Since 3 11 8 Insert the blow gun tip into the shear pin 11 Return the retaining ring against the shroud hole blow out the hole with compressed air washer and position the retaining ring then put a drop of oil the hole ears over the shear pin head as shown in Figure 145 This will prevent the shear pin 9 Insert the new shear pin into the bore as from falling out if the shroud washer should shown in Figure 143 rotate during operation Note If the pin does not freely slide into the bore DO NOT use a hammer on the pin or you may permanently damage the shear mechanism and bore which would make it nearly impossible to remove if it breaks again Instead take the time to
45. slide 0 100 5 08mm Rotate the dial collar 180 to read in metric units Compound Rest Handwheel The compound rest handwheel moves the cutting tool linearly along the set angle of the compound rest The compound rest angle is set by hand rotating it and securing in place with two hex nuts The compound rest has an indirect read graduated dial with 0 001 0 02mm increments One full revolution of the handwheel moves the slide 0 100 2 54mm Rotate the dial collar 180 to read in metric units South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe Spindle Speed Using the correct spindle speed is important for safe and satisfactory results as well as maximizing tool life To set the spindle speed for your operation you will need to 1 Determine the best spindle speed for the cutting task and 2 configure the lathe controls to produce the required spindle speed Determining Spindle Speed Many variables affect the optimum spindle speed to use for any given operation but the two most important are the recommended cutting speed for the workpiece material and the diameter of the workpiece as noted in the formula shown in Figure 72 Recommended Cutting Speed FPM x 12 Dia of Cut in inches x 3 14 SpindleSpeed RPM Double if using carbide cutting tool Figure 72 Spindle speed formula for lathes Cutting speed typically defined in feet per minute 1s the speed at which the
46. to engage the half nut Thing AF UK E Put 4 m E EL Ss VW M Control lever Lever Disengaged Cross Slide Disengaged Carriage Halfnut Lever Feed Control Lever Figure 87 Apron threading controls NOTICE Attempting to engage the half nut while the cross slide or carriage is engaged with the Engaged feed rod could cause severe damage to the lathe Never attempt to engage the half nut while the feed control lever is engaged Thread Dial The numbers on the thread dial are used with the thread dial chart to show when to engage the half nut during inch threading The thread dial gear must be engaged with the leadscrew for this to work Loosen the knurled knob on the thread dial pivot the dial gear toward the leadscrew so that it properly meshes with the leadscrew threads then re tighten the knob as shown Figure 88 4 s n Til HTTI 4 ll m T M x m M CA SS lus imm Ml ME Di 4 Jm Dial Gear Lm z E Hand Knob e um Figure 88 Thread dial engaged with the leadscrew NOTICE When threading we recommend using the slowest speed possible and avoiding deep cuts so you are able to disengage the half nut and prevent an apron crash South Bend Lathe Co 59 16 Speed Gearhead Lathe Thread Dial Chart
47. 16 SPEED GEARHEAD LATHE MODEL SB1053 14 X 40 MODEL SB1054F 16 X 40 w DRO MODEL SB1055F 16 X 60 w DRO OWNER S MANUAL South Bend Lathe Co Hundreds of Thousands of Lathes Sold With a Tradition of Quality Since 1906 June 2011 by South Bend Lathe Co For Machines Mfg Since 3 11 Scope of Manual This manual helps the reader understand the machine how to prepare it for operation how to control it during operation and how to keep it in good working condition We assume the reader has a basic understanding of how to operate this type of machine but that the reader 1s not familiar with the controls and adjustments of this specific model As with all machinery of this nature learning the nuances of operation is a process that happens through training and experience If you are not an experienced operator of this type of machinery read through this entire manual then learn more from an experienced operator schooling or research before attempting operations Following this advice will help you avoid serious personal injury and get the best results from your work Manual Feedback We ve made every effort to be accurate when documenting this machine However errors sometimes happen or the machine design changes after the documentation process so the manual may not exactly match your machine If a difference between the manual and machine leaves you in doubt contact our customer service for clarification We highly value c
48. 514M 5610551060 F5B10531060 1 PBULBS PSB10531060 3 PSB10531060 4 PS55M PSB10531060 6 HALOGEN LAMP ASSEMBLY LAMP BODY HALOGEN BULB 24V LENS LENS RETAINER SI SI VS Ivi VI VI VI VI VI VI VI VI Vj vin VI V VS HD 99 0 gt EJ E EE 99so syw sv olololo 9 5 5 515 5 515 15 51 5 5 5 ololo ES E QV Ol j Ol Ol Oly lt Ol j OI Ot O1 j Ol j Ol j Ol Ol Ol OTI Ol Ol j Ol Ol O o coelo aN el CIS oldlololol iolo ce olo Oo OQ os RIOI RIRIRIO RISR O o M SIG TESTES IDIS m C I T QIZ I T m m gt gt aJo y Z 7 I I an AIQ 9 AIO D e T 5 O O X RO lt gt 7 7 5 70 lt lt NN gt s o x OQ x 2 O Q E E 7 Q N QO LAMP TERMINAL BLOCK 2P South Bend Lathe Co 123 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Tailstock Z ane J 9 1101A EM Ue 5 E Se ee Se 1100 0 7 B SS T 104 E S TA bm 0 7x Fa 6 RM Wa 2 gt 1144 EM 114 7 S 9 3 ume EM D 60 Ne fe 1107 1108 S Q 1105 1115 145 1116 Hep T Qi Ol 124 South Bend Lathe Co For Machines Mfg Since 3 11 Tailstock Par
49. ATHE FROM POWER 5 Remove the vented cover and slide the tank out 6 To enable the remaining fluid to be poured out in the next step disconnect the fluid hose from the pump see Figure 120 Note The electrical conduit was purposely left long so the tank can be removed and dumped out without disconnecting wires from the pump ha s Flu id Hose y Figure 120 Fluid hose and connection 73 16 Speed Gearhead Lathe V 7 E N A r4 E For Machines Mfg Since 3 11 7 Tip 10 11 12 13 74 Pour the remaining coolant into a 5 gallon bucket and close the lid Clean all the sludge out of the bottom of the tank and then flush 1t clean Use the second bucket to hold the waste and make sure to seal the lid closed when done Dispose of the old coolant and swarf according to federal state and fluid manufacturer s requirements Slide the tank partially into the base and re connect the fluid hose if removed Leave one or more magnets at the bottom of the tank to collect metal chips and make cleanup easier next time This will also help keep small metal chips out of the pump Refill the tank with new coolant then slide 14 completely into the base Replace the vented cover panel Connect the lathe to power and point the nozzle into the chip drawer Turn the coolant pump ON to verify that fluid cycles properly then turn it OFF Machine Storage To prevent the
50. D DIAL POINTER 802 PSB10530802 POST NUT 805 5 1 55 5 FLAT WASHER 804 6 0550804 TOOL CLAMP BOLT 805 PSBIO530805 TOOL POST BODY B06 507 506 Bio Br Ba BIA Bc d South Bend Lathe Co 16 Speed Gearhead Lathe gt k gt an 53 gt RA N t N od a Qux Op 4990145 aPOW 746 119 South Bend Lathe Co 16 Speed Gearhead Lathe JY T S For Machines Mfg Since 3 11 Bed amp Shafts Parts List REF PART DESCRIPTION REF PART DESCRIPTION 901 PSB10530901 BED 581052 954 5 10550954 FIN 201 956 202 57 208 927 204 952 207 940 od 52 97 250 E 99 o 952 210 acc 922 557 927 262 950 PSBIOS5FO9 0 LONGITUDINAL LEADSCREW SBIOS55F 966 93 907 932 120 South Bend Lathe Co For Machines Mfg Since 3 11 Cabinet Stands amp Panels 1 16 Speed Gearhead Lathe 1017 South Bend Lathe Co 121 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 Cabinet Stands amp Panels 2 p 2 122 9 For Models 5B1053 amp SP1ObAF South Bend Lathe Co For Machines Mfg Since 3 11 Cabinet Stands amp Panels Parts List REF 1001
51. E RV c 16 Speed Gearhead Lathe Brake amp Switch As the brake lining wears the foot pedal develops more travel If the brake band 1s not adjusted to compensate for normal wear the limit switch will still turn the lathe off but the spindle will not stop as quickly It is especially important that the brake 15 kept properly adjusted so you can quickly stop the spindle in an emergency Tools Needed Phillips Screwdriver 2 sass 1 Hex Wrench 6mm eren 1 To adjust the brake and brake switch 1 DISCONNECT LATHE FROM POWER 2 Putona respirator and eye protection to protect yourself from hazardous brake dust 3 Remove the motor access panel from the left cabinet 4 Measure the remaining brake band lining at the thinnest point which is usually at the 8 o clock position as shown in Figure 134 Figure 134 Minimum brake belt thickness When the brake band is new the lining is approximately 5mm thick If the lining thickness wears 2 5mm or less the brake band must be replaced Otherwise the rivets that secure the lining to the band will soon grind into the brake hub If the hub becomes damaged it must be replaced South Bend Lathe Co 5 Remove the pedal stop shown in Figure 135 1 emi T e Figure 135 Brake adjustment components 6 Move the brake band over one hole to the right re install the pedal stop then re tighten the cap screw until it is just sn
52. GM z 2 3 JNE lt lt lt South Bend Lathe Co 125 16 Speed Gearhead Lathe Thread Dial REF 1200 1201 122 1205 1204 1205 1206 1207 1206 1209 1210 1211 1212 PART 5 10551200 5 10551201 FODIODOTA20Z PSB10531203 5 10551204 2 10551205 5610551206 PSB10531207 PSBIO5S1208 DESCRIFTION THREAD DIAL ASSEMBLY DIAL INDICATOR FIVOT SHAFT For Machines Mfg Since 3 11 Micrometer Stop 1504 PART PSB10531300 CCC 0 DESCRIPTION MICROMETER STOP ASSEMBLY SCREW M1O 1 5 X 6O STEEL FLUTED RIVET 2 X 5MM INDICATOR PLATE MICROMETER DIAL MICROMETER DIAL BODY MICROMETER ROD SCREW M5 1 25 X TZ 126 South Bend Lathe Co For Machines Mfg Since 3 11 Steady Rest 1400 bo 1400 1401 1402 1405 1404 1405 1406 1407 1408 1409 1410 1411 1412 1415 1414 1415 1416 1417 1418 1419 PART DESCRIPTION PSBIO5S1400 STEADY REST ASSEMBLY PSB1I0531401 FINGER ADJUSTMENT KNOB REF 1500 1501 1502 15092 1504 1505 1506 1507 1508 16 Speed Gearhead Lathe Follow Rest 1501 1502 1504 1505 1207 1508 PART DESCRIPTION PSBIO531500 REST ASSEMBLY FINGER ADJUSTMENT KNOB South Bend Lathe Co 127 16 Speed Gearhead Lathe JY n S For Machines Mfg Since 3 11 Electrical Ele
53. NECT LATHE FROM POWER 2 Remove the end cover on the right side of the lathe to access the leadscrew end nut 3 Loosen the two set screws in the leadscrew end nut see Figure 123 1 Leadscrew End Pam Nut amp Set Screws Figure 123 Leadscrew end nut 4 Engage the half nut with the leadscrew 5 Rotate the carriage handwheel back slightly and tighten the end nut at the same time until the end play is removed 6 Retighten both set screws and replace the end cover South Bend Lathe Co For Machines Mfg Since 3 11 86 E RV c 16 Speed Gearhead Lathe Gib Adjustment The goal of adjusting the gib screws 1s to remove sloppiness or play from the ways without over adjusting them to the point where they become stiff and difficult to move In general loose gibs cause poor finishes and tool chatter however over tightened gibs cause premature wear and make it difficult to turn the handwheels Important Before adjusting the gibs loosen the locks for the device so that the gibs can freely slide during adjustment then lubricate the ways The gibs are tapered and held in position by a screw at each end To adjust the gib turn one screw turn clockwise and the other screw 4 turn counterclockwise so both screws move in the same direction and the same amount Test the feel of the sliding component by turning the handwheel and adjust the gib screws as necessary to make it tighter or looser T
54. Numbered TPI For odd numbered TPI use any of the numbered lines on the thread dial see Figure 92 Numbered Position 1 2 3 4 Figure 92 Numbers are selected on the dial for threading odd numbered TPI 1 Fractional TPI Use any opposing number pairs 2 4 or 1 3 on the thread dial for 2 fractional TPI see Figure 93 For example to cut a 3 thread select 1 or 3 on the dial TPI 2 gt 3 4 77 gt 11 13 Position 1 3 or 2 4 Figure 93 Opposing number group are selected on dial for cutting 1 2 thread TPI South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe 14 or Fractional TPI Ch Drawer For TPI that have a or fraction use position 1 on the thread dial see Figure 94 The chip drawer shown in Figure 96 catches swarf and metal chips during the machining process It easily slides open to provide access to TPI swarf during cleanup 1 1 1 3 iti A Also the chip drawer contains a screen that 4 374 allows run off coolant to drain back into the reservoir Figure 94 Position for 14 or 4 fractional 2 TPI The thread dial is not used for 2 threading or metric threading see Figure 95 The half nut must stay engaged with the leadscrew throughout the entire threading operations Chip Thread Dial Drawer Not Used Figure 96 Chip drawer A CAUTION If pulled out quickly and more than halfway Figure 95 Half nut
55. Operations Check add headstock oil Page 67 Check add gearbox oil Page 68 Check add apron oil Page 68 Check add coolant Page 72 Lubricate the ways Page 69 Add oil to the ball oilers and oil cup Page 70 Clean lubricate the leadscrew Page 70 e Disengage the feed control lever on the apron to prevent crashes upon startup e Ensure carriage lock bolt is loose South Bend Lathe Co Daily After Operations Depress STOP button and shut OFF the master power switch to prevent accidental startup e Vacuum clean all chips and swarf from bed slides and chip drawer e Wipe down all unpainted or machined surfaces with an oiled rag Monthly e Drain and clean the coolant tank then add new fluid Page 72 Semi Annually e Change the headstock oil Page 67 e Lubricate end gears Page 71 Annually e Change the apron oil Page 68 e Change the gearbox oil Page 68 Cleaning amp Protecting Regular cleaning is one of the most important steps in taking care of this lathe We recommend that the cleaning routine be planned into the workflow schedule so that adequate time is set aside to do the job right Typically the easiest way to clean swarf from the bed ways and chip drawer is to use a wet dry shop vacuum that is dedicated for this purpose only The small chips left over after vacuuming can be wiped up with a slightly oiled rag Avoid using compressed air to blow off chips as it may
56. RIPTION REF PART DESCRIPTION 295 5 10550295 SHIFT FORK 217 FSB10550517 END CAF 297 52 502 527 207 55 5 A 108 South Bend Lathe Co For Machines Mfg Since 3 11 DA v S 16 Speed Gearhead Lathe Apron 1 eV U S lt 414 415 456 South Bend Lathe Co 109 16 Speed Gearhead Lathe JY v S o For Machines Mfg Since 3 11 Apron 2 455 A XN AVON VEN AVSA NON SAN gt 2 AA 450 466 110 South Bend Lathe Co For Machines Mfg Since 3 11 DA v 59 o 16 Speed Gearhead Lathe Apron Parts List REF 401 402 405 404 405 406 407 408 409 410 411 412 415 414 415 416 417 418 419 420 421 422 425 424 425 426 427 428 429 420 431 432 434 425 457 459 429 440 441 442 444 445 446 447 448 PART DESCRIPTION PSB10530401 GEAR 18 60T REF 449 450 451 452 455 454 455 456 458 459 461 462 463 465 466 467 468 469 470 472 475 474 475 476 477 476 479 460 451 462 455 464 485 456 487 466 469 490 491 492 495 494 495 496 497 PART DESCRIPTION PSB10530449 STOP PLATE South Bend Lathe Co 111 16 Speed Gearhead Lathe For Machines Mfg Since 3 11 End Gears 2222220 22222220
57. SB1055F 1622 220V MPM 1220 SB1053 INES 1820 SB1054F amp SBIO55F 3 Ph PART DESCRIPTION REF PART DESCRIPTION 1816 PSBLABELI5M ELECTRICITY LABEL 1822 P5B105531822 MACHINE DATA FLATE SB1053 1819 PSBLABELO2HL DISCONNECT POWER LABEL 1822 FSB1054F19822 MACHINE DATA PLATE SB1O54F 1620 5610551520 220V LABEL 681069 1922 FOBBPIJOBDFIS22 MACHINE DATA PLATE SBIO55F 1620 PSBIO5S4F1820 44OV SPH LABEL 8B1054F amp SBIOS5SF 1225 IFOSPIODS2IOZ25 FLUID CAPACITIES LABEL AWARNING The safety labels provided with your machine are used to make the operator aware of the machine hazards and ways to prevent injury The owner of this machine MUST maintain the original location and readability of these safety labels If any label is removed or becomes unreadable REPLACE that label before using the machine again Contact South Bend Lathe Co at 360 734 1540 or www southbendlathe com to order new labels South Bend Lathe Co 131 WARRANTY RRANTY Warranty This quality product is warranted by South Bend Lathe Company to the original buyer for one year from the date of purchase This warranty does not apply to consumable parts or defects due to any kind of misuse abuse negligence accidents repairs alterations or lack of maintenance We do not reimburse for third party repairs In no event shall we be liable for death injuries to persons or property or f
58. acer on the outside For the alternate end gear configuration slide the spacer on first then the gear 6 Re install the cap screw lock washer and flat washer you removed in Step 3 to secure the spacer and 57T gear Do not overtighten 7 Slide the pivot arm back so that either the 44T or the 56T meshes with the 57T gear then retighten the pivot arm hex nut Note Make sure to keep approximately 0 002 play between the gears 8 Replace and secure the end gear cover before re connecting the lathe to power 57 16 Speed Gearhead Lathe OPERATION For Machines Mfg Since 3 11 3 The configuration string of characters to the Th read ng Controls right of the selected thread pitch LCR3Y displays the positions to set the threading The following subsections describe how to use controls for a metric thread width of 2 5mm the threading controls and charts on this lathe If you are unfamiliar with the process of cutting threads on a lathe we strongly recommend that you read books review industry trade magazines or get formal training before doing any threading projects Note In the next step use the chuck key to rock the spindle back and forth to help mesh the gears as you make adjustments 4 Position the controls as directed by the Setting Th reading Controls configuration string LCR8Y as follows The threading charts on the headstock face a Move the feed range lever to the low L display the
59. achieved South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe Centers Figure 56 shows the MT 4 dead centers included with the lathe In addition an 6 MT 4 tapered spindle sleeve is included for mounting centers in the spindle Dead a Center Carbide Tipped Dead Center Adapter Sleeve Figure 56 Adapter sleeve and dead centers Dead Centers A dead center 1s a one piece center that does not rotate with the workpiece and is used to support long slender workpieces Use the dead center in the spindle where the workpiece rotates with the center and does not generate friction The carbide tipped dead center can better withstand the effects of friction and is best used in the tailstock where the workpiece will rotate against 1t and generate friction The tip of the center must be generously lubricated to avoid premature wear and maximize smooth operation Using low spindle speeds will also reduce the heat and wear from friction 43 16 Speed Gearhead Lathe Live Centers A live center has bearings that allow the center tip and the workpiece to rotate together it can be installed 1n the spindle and the tailstock quill for higher speeds However a live center typically does not provide the same level of rigidity as a dead center and final workpiece accuracy can suffer as a result Mounting Dead Center in Spindle 1 DISCONNECT LATHE FROM POWER 2 Thoroughly clean and dry the tapered ma
60. ad center mounted in a tailstock Carbide Tipped Dead Center Figure 58 Example photo of using a carbide tipped dead center installed in the tailstock To mount a center in the tailstock 1 DISCONNECT LATHE FROM POWER 2 Thoroughly clean and dry the tapered mating surfaces of the tailstock quill bore and the center making sure that no lint or oil remains on the tapers South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe 3 Use the tailstock handwheel to feed the quill Mou nting Workpiece Between out from the casting approximately 1 Centers Note Do not extend the quill more than 2 or 1 DISCONNECT LATHE FROM POWER stability and accuracy will be reduced 2 Drill center holes in both ends of the 4 Insert the center into the tailstock quill workpiece 5 Seat the center firmly into the quill during 3 Install a dead center in the spindle with workpiece installation by rotating the quill a lathe dog and a chuck or faceplate then handwheel clockwise to apply pressure with install a live center or carbide tipped dead the center engaged in the center hole in the center in the tailstock workpiece 4 Lubricate the workpiece center holes then Note Only apply enough pressure with mount the workpiece between the centers the tailstock quill to securely mount and hold it in place with light pressure from the workpiece between centers Avoid the tailstock center overtightening the cen
61. ak in procedures Adding Coolant Add the coolant of your choice now For detailed instructions on where the coolant tank is located and how to add fluid refer to Coolant System Service subsection on Page 72 Power Connection After you have completed all previous setup instructions and circuit requirements the machine is ready to be connected to the power supply Model SB1053 Connect a power cord that meets the Circuit Requirements on Page 18 as instructed later in this subsection Attach a locking NEMA L15 30 plug as directed by the plug manufacture and insert it into a matching receptacle that is connected to a circuit that meets the requirements listed on Page 18 NOTICE When removing the plug from the receptacle grasp it and pull it completely out of the receptacle Do not pull by the cord as this may damage the wires inside 96 PREPARATION For Machines Mfg Since 3 11 Model SB1054F amp SB1055F Due to the complexity required for planning bending and installing the conduit necessary for a code compliant hardwire setup an electrician or other qualified person MUST perform this type of installation Hardwire setups typically require power supply wires to be enclosed inside of a solid or flexible conduit which 1s securely mounted at both ends with the appropriate conduit fittings All work must adhere to the required electrical codes The hardwire setup must include a locking disco
62. ales 4 lt lt B Figure 65 Compound rest 2 Rotate the rest to the desired angle as indicated by the scale at the base then retighten the two hex nuts Tip The first time you set the angle of the compound rest for cutting threads mark the location on the cross slide as a quick reference point This will allow you to quickly return the compound rest to that exact angle the next time you need to cut threads 48 OPERATION For Machines Mfg Since 3 11 Four Way Tool Post The four way tool post is mounted on top of the compound rest and allows a maximum of four tools to be loaded simultaneously Each tool can be quickly indexed to the workpiece by loosening the top handle rotating the tool post to the desired position then re tightening the handle to lock the tool into position Installing Tool Tool Needed Tool Post T Wrench eren 1 To load the tool post 1 Adjust the tool post bolts so that the cutting tool can fit underneath them see Figure 66 Cutting Figure 66 Example of tool mounted in tool post AWARNING Over extending a cutting tool from the post will increase the risk of tool chatter breakage or loosening the tool during operation which could cause metal pieces to be thrown at the operator or bystanders with great force DO NOT extend a cutting tool more than 2 5 times the width of its cross section or less e g 2 5 x 0 5 1 25 2 Firm
63. alternative method to accomplish the same task ask a qualified expert how the operation should be performed or contact our Technical Support for assistance South Bend Lathe Co For Machines Mfg Since 3 11 SAFE 16 Speed Gearhead Lathe Additional Metal Lathe Safety Clearing Chips Metal chips can easily cut bare Speed Rates Operating the lathe at the wrong skin even through a piece of cloth Avoid speed can cause nearby parts to break or the clearing chips by hand or with rag Use a workpiece to come loose which will result in brush or vacuum to clear metal chips dangerous projectiles that could cause severe impact injuries Large or non concentric Chuck Key Safety A chuck key left in the chuck workpieces must be turned at slow speeds can become a deadly projectile when the Always use the appropriate feed and speed spindle 1s started Always remove the chuck rates key after using it Develop a habit of not taking your hand off of a chuck key unless it Stopping Spindle by Hand Stopping the spindle is away from the machine by putting your hand on the workpiece or chuck creates an extreme risk of Tool Selection Cutting with an incorrect or entanglement impact crushing friction or dull tool increases the risk of accidental cutting hazards Never attempt to slow or injury due to the extra force required for the stop the lathe spindle with your hand Allow operation which increases risk of breaking the spindle to co
64. anges power feed Using the controls on the lathe follow along with direction see Figure 80 the example below to better understand how to set the lathe for the desired power feed rate The advantage of this knob 1s that you can quickly reverse power feed direction while the Example Power Feed Rate of 0 18mm rev spindle is rotating without having to turn the 1 lathe off wait until the spindle 1s stopped then use the feed direction lever on the headstock NOTICE Depending on the combined configuration 2 Locate the line the feed rate chart that of the feed direction lever on the headstock lists the setting for 0 18mm of feed per and the feed direction knob on the apron revolution of the spindle as illustrated in the actual direction of power feed may be Figure 82 different from the printed indicators on the machine Make sure the end gears are in the standard configuration which 1s applicable for general feed operations refer to End Gears on the Page 56 for detailed instructions Setting Feed Rate The feed rate chart displays the settings for the headstock feed controls for metric and inch feed rates see Figure 81 O NOT CHANGE poe seo O 40 60 100 165 245 375 625 1000 ES some 80 120 200 330 490 750612502000 AjBjcj D A B CG Db o e THREAD AND FEED CHART 330 490 75012502000 D AB DB Feed Rate Chart AHD FEED CHANT d n E Figur
65. bearings 16 South Bend Precision Toolroom Lathe Circa 1958 South Bend Lathe Co 3 16 Speed Gearhead Lathe INTRODUCTION For Machines Mfg Since 3 11 General Identification Figure 1 General identification Model SB1054F shown A Headstock Tailstock D1 6 Camlock MT 6 Spindle L Longitudinal Leadscrew C Chuck Guard w Safety Switch M Feed Rod D Steady Rest N Coolant Tank amp Pump Access E Follow Rest O Carriage F Halogen Work Lamp P Brake Pedal G 4 Way Tool Post O Chip Drawer H Fagor 2 DRO SB1054F amp SB1055F R Micrometer Stop only S Spindle Motor 2 Speed Switch I Compound Rest T Quick Change Gearbox Controls J Coolant Nozzle amp Valve U Headstock Controls AWARNING AWARNING Serious personal injury could occur if Untrained users have an increased risk you connect the machine to power before of seriously injuring themselves with this completing the setup process DO NOT machine Do not operate this machine until connect power until instructed to do so later you have understood this entire manual and in this manual received proper training 4 South Bend Lathe Co For Machines Mfg Since 3 11 INTRODUCTION 16 Speed Gearhead Lathe Controls amp Components Refer to Figures 2 9 and the following descriptions to become familiar with the features and basic controls of this lathe This knowledge will be necessary to properly set up the lathe for the test r
66. c TA 16 Speed Gearhead Lathe To prepare your machine for long term storage a year or more 1 Run the lathe and bring all gearboxes to operating temperature then drain and refill them with clean oil 2 Pump out the old coolant and remove and blow out lines with compressed air and a few drops of way oil 3 DISCONNECT LATHE FROM POWER 4 Thoroughly clean all unpainted bare metal surfaces then apply a liberal coat of way oil heavy grease or rust preventative Take care to ensure these surfaces are completely covered but that the rust preventative or grease is kept off of painted surfaces 5 Lubricate the machine as outlined in the lubrication section Be sure to use the oil gun to purge all ball oilers and oil passages with fresh oil 6 Loosen or remove machine belts so they do not become stretched during the storage period Be sure to place a maintenance note near the power button as a reminder that the belts have been loosened or removed 7 Placea few moisture absorbing desiccant packs inside of the electrical box 8 Cover the lathe and place it in a dry area that 1s out of direct sunlight and away from hazardous fumes paint solvents or gas Fumes and sunlight can bleach or discolor paint and make the chuck guard cloudy 9 Every few months by hand rotate all gear driven components a few times in several gear selections This will keep the bearings bushings gears and shafts well lubricated and pro
67. concrete floors NOTICE Most electrical codes require that machines connected to the power source by fixed conduit MUST be secured to the floor South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe Assembly With the exception of the handwheel handles the lathe is shipped fully assembled To install the handwheel handles thread the large handle into the carriage handwheel and the small handle into the cross slide handwheel as shown in Figure 24 Handwheel Handles Figure 24 Handwheel handles installed Lubricating Lathe GEARBOXES MUST BE FILLED WITH OIL STOP LATHE MAY NOT HAVE OIL INCLUDED Refer to the Lubrication Section in this Manual for Recommended Oil Type The headstock quick change gearbox and apron oil reservoirs must have the proper amount of oil in them before the lathe can be operated for the first time Damage caused to the bearings and gears from running the lathe without oil in the reservoirs will not be covered under warranty Refer to the Lubrication section beginning on Page 67 for details on how to check and add oil 95 16 Speed Gearhead Lathe In addition to the reservoirs we also recommend that you lubricate all other points on the machine at this time This can be accomplished by following the maintenance schedule on Page 65 Note If this lathe was shipped with oil in the reservoirs do not change that oil until after the test run and bre
68. cted to a grounded metal permanent wiring system or to a system with an equipment grounding conductor Due to the complexity and high voltage involved this type of installation MUST be done by a qualified electrician or service personnel LOCKING DISCONNECT SWITCH Power Source Conduit Ground Ground Figure 12 Typical hardwire setup with a locking disconnect switch 19 16 Speed Gearhead Lathe PREPARATION For Machines Mfg Since 3 11 Unpacking This item was carefully packaged to prevent damage during transport If you discover any damage please immediately call Customer Service at 360 734 1540 for advice You may need to file a freight claim so save the containers and all packing materials for possible inspection by the carrier or its agent Inventory Main Inventory 1 Figure 13 Oty A Steady Rest 1 B 12 Faceplate w D1 6 Camlock Stud Set 1 C 3 Jaw Chuck Key eer 1 D Model SB1228 10 Four Jaw Chuck w Combo Jaws 1 E 4 Jaw Chuck Key Clamped on Lathe 1 F Tool Post T Wrench Clamped on Lathe 1 Follow Rest Assembly Installed 1 Tool Box Inventory Figure 14 Oty 1 I Open End Wrench 22 24mm 1 J Open End Wrench 14 17mmm 1 Open End Wrench 10 12mmm 1 L Phillips Screwdriver 2
69. ctrical Cabinet 1601 1602 1617 N X 04 md Control Panel 1610 REF PART DESCRIPTION REF PART DESCRIPTION 1601 10521601 ELECTRICAL MOUNTING PLATE 1608 0521608 TRANSFORMER LIANG SP TBSW 1602 1608 i602 90 605 on 1604 GE 1604 E i606 icu 906 ios i606 1016 1607 07 128 South Bend Lathe Co For Machines Mfg Since 3 11 16 Speed Gearhead Lathe Accessories N 1717 UR NA S Ru ARSA AVAN AVA fe TELLS scc 1712 REF PART DESCRIPTION REF PART DESCRIPTION 1701 SB1309 3 JAW CHUCK ASSEMBLY 9 MO TIFEPIOSOIIO FOOT CAST IRON 702 71 705 72 704 1705 76 1707 177 PSB10531717 ASSEMBLY FAGOR 201 2 AXIS 708 me FSBO o01 Box 709 South Bend Lathe Co 129 16 Speed Gearhead Lathe JY T S o For Machines Mfg Since 3 11 Front Machine Labels CHAHCINO EAE 1804 1811 1810 1808 1806 Mw c 1805 1809 eve REF PART DESCRIPTION REF PART DESCRIPTION 1601 FPSB1I0O5S1601 MACHINE ID LABEL SB1053 1610 PSBPAINTO2 SB LIGHT BLUE TOUCH UF FAINT 130 South Bend Lathe Co For Machines Mfg Since 3 11 74 v S 0 16 Speed Gearhead Lathe Rear amp Side Machine Labels south Bend Lathe Co uid Capacities 581053 SB1054F
70. d correct strange or unusual noises or vibrations before operating the machine further Always disconnect the machine from power when investigating or correcting potential problems With the spindle ON OFF lever in the down position verify that the spindle chuck is rotating counterclockwise down and toward the front of the lathe If the spindle chuck not rotating counterclockwise the power supply is likely connected out of phase Stop the machine disconnect it from power then follow the instructions for Correcting Phase Polarity Wiring on Page 90 After correcting the wiring repeat Steps 11 15 Press the STOP button to turn the lathe OFF then without resetting the STOP button try to restart the lathe with the spindle ON OFF lever If the lathe does not start with the STOP button pressed in the STOP button safety feature 1s working properly If the lathe does start with the STOP button pressed in the STOP button safety is not operating correctly This safety feature must operate properly before continuing Use the spindle ON OFF lever to stop the lathe disconnect it from power and call Tech Support for help 30 South Bend Lathe Co For Machines Mfg Since 3 11 17 18 19 20 21 Move the spindle ON OFF lever to the OFF middle position reset the STOP button by twisting it clockwise until it pops out then restart spindle rotation Push the foot brake The lathe shou
71. de A Disengaged Carriage ane Halfnut Lever Feed Control Lever Figure 32 Carriage controls set for moving the carriage Engaged 10 Move the spindle ON OFF lever to the OFF middle position as shown in Figure 33 THREADING POSITION Y 1 t n i 1 OIL LEVEL REVERSE FEED Figure 33 Spindle ON OFF lever in the OFF middle position 11 Press the STOP button on the control panel see Figure 29 on Page 28 to ensure that the lathe does not unexpectedly start when connected to power during the next step South Bend Lathe Co 29 16 Speed Gearhead Lathe PREPARATION For Machines Mfg Since 3 11 12 Connect the lathe to the power source then turn the master power switch to the ON position see Figure 34 Master Power Switch Figure 34 Master power switch turned ON 13 To reset the STOP button and enable power to the lathe electrical controls twist the STOP button clockwise until it pops out The power light on the control panel should illuminate see Figure 29 on Page 28 14 Verify that the machine 1s operating correctly by moving the spindle ON OFF lever out and down to start spindle rotation see Figure 35 UTN i Figure 35 Spindle ON OFF lever in down forward position 15 16 When operating correctly the machine runs smoothly with little or no vibration or rubbing noises Investigate an
72. ded Qty Tool Post T Wrench sees 1 Steel SHIME 22 As Needed T 1 Fine Bullet ceder dip BINAE EQUITIS ide 1 Tailstock Cit Cl ss oot kirria 1 To align the cutting tool with the tailstock center 1 Mount the cutting tool in the tool post then secure the post so the tool faces the tailstock 2 Install a center in the tailstock and position the center tip near the cutting tool tip 3 Lock the tailstock and quill in place 4 Adjust the height of the cutting tool so that the tool tip 1s aligned vertically and horizontally with the center tip as shown in Figure 68 Tailetock Center utting ool Tailetock Center Side View Figure 68 Cutting tool tip aligned with tailstock center 49 16 Speed Gearhead Lathe Adjustable Feed Stop This machine features an adjustable stop system that can be used to stop the carriage at a pre set location when it is being driven by the feed rod This system consists of an adjustable collar on the feed rod a stop plate on the apron and the feed rod clutch see Figure 69 The collar can be secured anywhere along the feed rod When the stop plate contacts the collar the feed rod clutch disengages the feed rod and stops carriage movement Note This system only works when the carriage is engaged with the feed rod it cannot be used to stop the carriage if it
73. e 81 Power feed rate chart Figure 82 Relationships between feed rate chart and headstock feed controls South Bend Lathe Co 55 16 Speed Gearhead Lathe 3 The configuration string of characters to the right of the selected feed rate LCS8W displays the positions to set the feed controls for a feed rate of 0 18mmr rev 4 Position the controls as indicated the following instructions If needed use the chuck key to rock the spindle back and forth to help mesh the gears as you make adjustments a Move the feed range lever to the low L position b Point the left gearbox lever to the C c Move the middle gearbox lever to the d Position the bottom gearbox lever in the 8 slot e Point the right gearbox lever to the W The lathe 1s now set up for a power feed rate of 0 18mm per spindle revolution 56 OPERATION For Machines Mfg Since 3 11 End Gears The end gears on the side of the headstock can be setup for the standard or alternate configuration depending upon the type of operation to be performed The lathe is shipped with the end gears in the standard configuration To access the end gears remove the end gear cover from the left side of the headstock Standard End Gear Configuration Use the standard end gear configuration see Figure 83 for inch threading metric threading and all general feed operations Inch and Metric Fitch Threading AM Inch and Me
74. e many ways to successfully remove the rust preventative we have cleaned thousands of machines and found the following process to be the best balance between efficiency and minimized exposure to toxic fumes or chemicals Before cleaning gather the following e Disposable rags e Cleaner degreaser certain citrus based degreasers work extremely well and they have non toxic fumes e Safety glasses amp disposable gloves Note Automotive degreasers mineral spirits or WDe40 can be used to remove rust preventative Before using these products though test them on an inconspicuous area of a painted area to make sure they will not damage it AWARNING Gasoline and petroleum products have low flash points and can explode or cause fire if used for cleaning Avoid using these products to remove rust preventative South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe A CAUTION Many cleaning solvents are toxic if inhaled Minimize your risk by only using these products in a well ventilated area NOTICE Avoid chlorine based solvents such as acetone or brake parts cleaner that may damage painted surfaces Always follow the manufacturer s instructions when using any type of cleaning product Basic steps for removing rust preventative 1 Put on safety glasses and disposable gloves 2 Coat all surfaces that have rust preventative with a liberal amount of your cleaner or degreaser
75. e use of a soft metal shear pin The shear pin is designed to break and disengage the power transfer to the leadscrew to help protect more expensive lathe components in the case of a carriage crash or the lathe 1s overloaded Contact South Bend to order a replacement shear pin Part Number PSB10530934 or use the specifications in Figure 138 to fabricate your own Ss m O 2mm N O 2mm Shear Fin Material Steel JIS S45C SAE 1045 Figure 138 Shear pin specifications Tools Needed Qty External Retaining Ring Pliers 1 1 WEA CTC DNE TRUE PH 1 Gla 1 Blow Gun w Compressed 1 1 Light Machine Oil As needed 82 South Bend Lathe Co For Machines Mfg Since 3 11 86 3 17 c Mmm 16 Speed Gearhead Lathe To replace the shear pin 1 DISCONNECT LATHE FROM POWER 2 Remove the clutch front and side covers see Figure 139 Figure 139 Location of clutch front cover side cover Side Cover Removed From Here Clutch Front Cover removed for photo clarity Rotate the shroud washer on the leadscrew see Figure 140 so that the cutout lines up with the shear pin head Shear Pin Shroud Move the retaining ring shown in Figure 141 away from the shroud washer then move the shroud washer away from the shear pin and against the retaining ring This will create
76. ed to adjust the clutch for a lower load rotate the collar downward Line up one of the available set screw holes on the collar with the nearest indent in the feed rod then re install the set screw and fully tighten it When you are satisfied with the adjustment replace the front and side access panels 9 16 Speed Gearhead Lathe E RV r4 For Machines Mfg Since 3 11 B elt S 3 Turn the hex nuts on the motor mount bolts shown in Figure 133 to move the motor mount plate up or down and adjust the V belt tension When correctly tensioned each belt should have about 4 deflection when pressed firmly see Figure 133 V belts stretch and wear with use so check them on a monthly basis to ensure optimal power transmission Replace all of the V belts if any of them show signs of glazing fraying or cracking Tools Needed Oty Phillips Screwdriver 2 eee 1 oa Open End Wrench 24101 1 Deflection To adjust the V belts 1 DISCONNECT LATHE FROM POWER 2 Remove the motor covers shown in Figure 133 Figure 132 V belt adjustment 4 Tighten the hex nuts against the both sides of the motor mount plate to prevent it from moving out of adjustment during operation Headstock then re install the motor covers Motor Covers Figure 132 Locations of motor covers 80 South Bend Lathe Co For Machines Mfg Since 3 11 sS
77. ed with a fine screen This works well when the tank is regularly cleaned however if too much sludge is allowed to accumulate before the tank is cleaned the pump will inevitably begin sucking it up Hazards As coolants age dangerous microbes can proliferate and create a biological hazard The risk of exposure to this hazard can be greatly reduced by replacing the old fluid on a monthly basis or as indicated by the fluid manufacturer The important thing to keep in mind when working with the coolant is to minimize exposure to your skin eyes and lungs by wearing the proper PPE Personal Protective Equipment such as splash resistant safety glasses long sleeve waterproof gloves protective clothing and a NIOSH approved respirator AWARNING BIOLOGICAL amp POISON HAZARD Use the correct personal protection equipment when handling coolant Follow federal state and fluid manufacturer requirements for proper disposal South Bend Lathe Co For Machines Mfg Since 3 11 B V 7 E N A r4 A 16 Speed Gearhead Lathe Adding Fluid 1 DISCONNECT LATHE FROM POWER 2 Remove the vented cover and slide the tank out as shown in Figure 119 Figure 119 Coolant tank and pump 3 Pour coolant into the tank until it is nearly full 4 Slide the tank back into the cabinet and replace the vented cover Changing Coolant When you replace the old coolant take the time to thoroughly clean out the ch
78. edge of a tool moves across the material surface A recommended cutting speed is an ideal speed for cutting a type of material in order to produce the desired finish and optimize tool life The books Machinery s Handbook or Machine Shop Practice and some internet sites provide excellent recommendations for which cutting speeds to use when calculating the spindle speed These sources also provide a wealth of additional information about the variables that affect cutting speed and they are a good educational resource Also there are a large number of easy to use spindle speed calculators that can be found on the internet All of these sources will help you take into account all the applicable variables in order to determine the best spindle speed for the operation 51 16 Speed Gearhead Lathe Setting Spindle Speed Selecting one of the 16 spindle speeds available is a combination of configuring the two speed motor switch the spindle range lever and the spindle speed lever shown in Figure 73 SOUTH South BXBEND JJ Ben Figure 73 Spindle speed controls The spindle speed and range levers control the gear configuration in the headstock to produce the selected spindle speed The spindle range lever selects speeds in the low or high range to be available for the spindle speed lever The spindle speed lever selects one of the speeds available in the active spindle speed range NOTICE Never change spindle s
79. eplate could cause the workpiece to be thrown from the lathe with deadly force at the operator or bystanders Use a minimum of THREE independent clamping devices to hold the workpiece onto the faceplate Figure 44 Example photo of non cylindrical workpiece correctly mounted on the 4 jaw chuck 38 South Bend Lathe Co For Machines Mfg Since 3 11 To mount a non concentric workpiece to the faceplate 1 DISCONNECT LATHE FROM POWER 2 Protect the bedway with a piece of plywood 3 With the help from another person or a holding device to support the workpiece position it onto the faceplate and clamp it in place with a minimum of three independent clamping devices see Figure 45 for an example Be sure to take into account the rotational and cutting forces that will be applied to the workpiece when clamping it to the faceplate If necessary use counter weights to balance the assembly IET 47 N T Figure 45 Example photo of workpiece clamped in a faceplate Tailstock The tailstock see Figure 46 is typically used to support long workpieces by means of a live or dead center refer to Centers on Page 43 It can also be used to hold a drill or chuck to bore holes in the center of a part Custom arbors and tapers can also be cut on your lathe by using the offset tailstock adjustment OPERATION 16 Speed Gearhead Lathe Tailstock Lock Lever Tailstock S Handwheel TN Fig
80. er by removing the chuck per the Chuck Removal instructions and pay close attention to how easily the tapers release If it was necessary to bump the chuck or use a mallet to release the tapers then they are seating together properly If the tapers released easily with little intervention they are not seated together firmly as required Remove the chuck re clean the mating surfaces carefully and re install If the problem persists refer to Troubleshooting Registration Marks Lightly stamp registration marks across the mating seams of chuck components These marks will help you re install the chuck in the same position after removal which ensures consistent chuck balance and turning results and allows the same camlocks and studs to operate together for consistent locking and unlocking Spindle amp Chuck Registration Marks Chuck Halves Camlock Spindle 2 Piece Direct Mount Camlock Chuck for Chuck Reassembly Figure 40 Registration mark locations OPERATION For Machines Mfg Since 3 11 Chuck Removal To remove the chuck 1 DISCONNECT LATHE FROM POWER 2 Use an appropriate lifting support or protective device to protect the ways and support the chuck 3 Loosen the camlocks by turning the key counterclockwise until the cam lines are aligned with the mark on the spindle nose Tip Camlocks can become very tight cheater pipe may be used as a last resort to add le
81. es is the equipment grounding wire If repair or replacement of the power cord is necessary do not connect the equipment grounding wire to a live current carrying terminal Check with a qualified electrician or service personnel if you do not understand these grounding requirements or if you are in doubt about whether the machine is properly grounded If you ever notice that a cord is damaged or worn disconnect it from power and immediately replace it with a new one 220V Operation The power cord and plug specified under Circuit Requirements section for the Model SB1053 on the previous page has an equipment grounding wire and a grounding prong The plug must only be inserted into a matching receptacle outlet that is properly installed and grounded in accordance with all local codes and ordinances see Figure 11 GROUNDED L15 30 RECEPTACLE Grounding Frong is Hooked Figure 11 Typical NEMA L15 30 plug and receptacle South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe AWARNING Electrocution or fire may occur if machine is not correctly grounded and attached to the power supply Use a qualified electrician to ensure a safe power connection 440V Operation As specified in the Circuit Requirements section for the Models SB1054F and SB1055F on the previous page these machines must be hardwired to the power source using a locking switch see Figure 12 These machines must also be conne
82. es or safe startup clearance websites 4 Clears all setup tools from the lathe AWA R N G 5 Checks for safe clearances by rotating To reduce the risk of the workpiece by hand at least one full serious injury when using revolution this machine read and understand this entire 6 Moves slides to where they will be used manual before beginning during operation any operations 7 Sets the correct spindle speed for the AW A R N G operation Loose hair clothing or 8 If using power feed selects the proper feed jewelry could get caught rate for the operation in machinery and cause serious injury or death 9 Turns the master power switch ON resets Keep these items away from the STOP button then uses the spindle ON moving parts at all times to OFF lever to start spindle rotation reduce this risk 10 Uses the carriage handwheels or power feed options to move the tooling into the AWA R N N G workpiece for operations During operation small 11 When finished cutting moves the spindle metal chips may become ON OFF lever to the OFF position presses airborne leading to serious the foot brake to completely stop the spindle eye injury Wear safety then removes the workpiece glasses to reduce this risk South Bend Lathe Co 33 16 Speed Gearhead Lathe Chuck amp Faceplate Mounting This lathe is equipped with a D1 type spindle nose This type of spindle uses camlocks to securely moun
83. es a direct read graduated dial which represents half the amount of tool movement and the total amount of material removed from the diameter of the workpiece South Bend Lathe Co T 16 Speed Gearhead Lathe INTRODUCTION For Machines Mfg Since 3 11 Tailstock Controls Foot Brake This lathe 1s equipped with a foot brake see Figure 10 to quickly stop the spindle instead of allowing 1t to coast to a stop on its own Pushing the foot brake while the spindle is ON also cuts power to the motor After the foot brake is used the spindle ON OFF lever must be returned to the OFF middle position to reset the spindle switches which will enable spindle rotation Figure 9 Tailstock controls A Tailstock Handwheel Moves the quill toward or away from the spindle B Graduated Scale Indicates quill movement in increments of 0 001 One full rotation of handwheel is 0 100 Foot Brake C Tailstock Lock Lever Secures the tailstock in place along the bedway Figure 10 Foot brake and spindle ON OFF lever D Quill Lock Lever Locks the quill in position E Quill Holds centers or tooling with an MT 4 taper Moves toward and away from the spindle F Tailstock Offset Screw Adjusts and secures the tailstock offset 1 of 2 G Gib Adjustment Screw Adjusts the tailstock gib that controls side to side movement 1 of 2 Offset Scale Indicates the distance of tailstock offset from the spindle centerline
84. he gib adjustment process usually requires some trial and error Repeat the adjustment process as necessary until you find the best balance between loose and stiff movement Most machinists find that the ideal gib adjustment is one where a small amount of drag or resistance is present yet the handwheels are still easy to move Figures 124 128 show the location of the adjustment screws for each gib on this machine Compound Rest Gib Adjustment Screw p Cross Slide i Gib Adjustment Screw Figure 124 Compound and cross slide gib adjustment Screws M i Gib Adjustment Screw 1 of 2 Figure 125 One of two rear saddle gib adjustment Screws Figure 126 Front saddle gib adjustment screw South Bend Lathe Co 77 16 Speed Gearhead Lathe S E RV r4 For Machines Mfg Since 3 11 Note Remove the carriage lock clamp to access the saddle gib adjustment screw on the tailstock side see Figure 127 Figure 127 Carriage lock clamp Note Before adjusting the tailstock gib loosen the hex bolts underneath both ends of the tailstock see Figure 128 to release the clamping pressure between the upper and lower castings Test the gib adjustment by using the offset adjustment screws When you are satisfied with the setting retighten the clamping hex bolts Offset Adjustment Screw Gib Adjustment Screw 1 of 2 Clamping Hex Figure 128 Tailstock gib adjustmen
85. he tailstock to the headstock spindle bore tapered properly aligned with each other centerline see Page 42 Chuck jaws will 1 Chips lodged in the jaws or scroll 1 Remove jaws clean and lubricate scroll plate then not move or do not plate replace jaws move easily Carriage will not Gears are not all engaged Adjust gear levers feed or is hard to Loose screw on the feed handle Tighten Carriage lock is tightened down Check to make sure the carriage lock bolt is fully released Chips have loaded up on bedways Frequently clean away chips that load up during turning operations Bedways are dry and in need of Lubricate bedways and handles lubrication Micrometer stop is interfering Check micrometer stop position and adjust it as necessary see Page 50 Gibs are too tight Loosen gib screw s slightly see Page 77 Gears or shear pin broken Replace gears or shear pin see Page 83 Gear change levers 1 Gears not aligned inside headstock 1 Rotate spindle by hand with light pressure on the will not shift into lever until gear falls into place position 88 South Bend Lathe Co For Machines Mfg Since 3 11 E T 7 R 16 Speed Gearhead Lathe Electrical Safety Instructions These pages are accurate at the time of printing In the constant effort to improve however we may make changes to the electrical systems of future machines Study this section carefully If
86. igure 102 SB1247 MT4 Bull Nose Center SB1269 Taper Attachment This taper attachment mounts quickly to the back bed way of your lathe Accurate tapers of up to 12 can be produced without repositioning the attachment having to offset the tailstock or disengaging the cross slide nut The Model SB1269 features scales at both ends reading inches per foot and degrees An angle adjusting knob with fine threads achieves exacting control when setting tapers Figure 103 Model SB1269 Taper Attachment f yos EN JA A 64 SB1298 SBL Bench Lathe Shop Clock SB1299 SBL Toolroom Lathe Shop Clock SB1300 SBL Lathe with Man These fine traditional shop clocks are constructed with a metal antique finished frame They are easy to read from a distance and measure 14 in diameter Pictures just don t do them justice They are very nice quality clocks and perfect for the South Bend Lathe aficionado Figure 104 Antique finished South Bend shop clocks S B1251 Heavy Duty Oak Tool Chest Proudly made in the South Bend tradition this heavy duty oak tool chest will safeguard your finest tools for may years of dependable service Solidly constructed with mortis and tenon joinery this tool chest features a locking top lid and front panel and 13 drawers of various sizes Seven drawers even have removable dividers for organizing and protecting tools and tooling All drawers and the top compartment are felt lined f
87. igure 147 South Bend Lathe Co 2 3 Remove the two way end cap screws Tighten the two dowel pin jack nuts until the pins are pulled free from the gap insert Tap the outside of the gap insert with a dead blow hammer to loosen it then remove it Gap Installation 1 Use mineral spirits and a clean lint free rag to clean the mating surfaces of the gap bed and ways If necessary stone the mating surfaces to remove scratches dings or burrs Wipe a thin layer of light machine oil on the mating surfaces Place the gap insert into the gap and use dead blow hammer to align the insert with the lathe bed Back off the dowel pin jack nuts and lightly tap the dowel pins back into their respective holes until they are seated This process will further help align the gap insert and bed mating surfaces Install all fasteners and lightly snug them in place Mount a dial indicator with a magnetic base to the top of the saddle to indicate alignment First test the peak of the two prisms of the gap insert that the saddle rides on then test the flanks of the prisms Tighten the gap bed cap screws in an alternating manner and tap the side of the gap insert into alignment Inspect the gap alignment 24 hours later to make sure the gap is still aligned If necessary loosen the gap bed cap screws and repeat Steps 7 8 until the insert is properly aligned 85 16 Speed Gearhead Lathe TROUBLESHOOTING
88. imes its own diameter Always over the ways of the lathe when servicing turn long stock at slow speeds chucks Coolant Safety Coolant is a very poisonous Safe Clearances Workpieces that crash into biohazard that can cause personal injury other components on the lathe may throw from skin contact alone Incorrectly dangerous projectiles in all directions positioned coolant nozzles can splash on leading to impact injury and damaged the operator or the floor resulting in an equipment Before starting the spindle exposure or slipping hazard To decrease make sure the workpiece has adequate your risk change coolant regularly and clearance by hand rotating it through its position the nozzle where it will not splash entire range of motion Also check the tool or end up on the floor and tool post clearance chuck clearance and saddle clearance South Bend Lathe Co 15 16 Speed Gearhead Lathe SAFE For Machines Mfg Since 3 11 Chuck Safety Entanglement Entanglement with a rotating chuck can lead to death amputation broken bones or other serious injury Never attempt to slow or stop the lathe chuck by hand and always roll up long sleeves tie back long hair and remove any jewelry or loose apparel BEFORE operating Using Correct Equipment Many workpieces can only be safely turned a lathe 1f additional support equipment such as a tailstock or steady rest is used If the operation is too hazardous to be completed w
89. in place Figure 16 Tailstock lock lever South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe 4 To further balance the load loosen the carriage lock bolt see Figure 17 disengage the half nut lever disengage the feed control lever then use the carriage handwheel to move the carriage next to the tailstock EH 7 Nut Lever 2 j Carriage m i a gt by ph andwheel sige Lock E i i EE y FeediGontrollbever Cross Slide Disengaged Carriage Halfnut Lever Feed Control Lever Engaged Figure 17 Carriage controls set for moving the carriage 5 Position a 12 long 2x6 board under each end of the bed as illustrated in Figure 18 then wrap the lifting straps around the bottom of the 2x6 s Note The 2x6 s extend the lifting straps away from the bottom of the bed to prevent machine damage from excessive strap pressure against the leadscrew feed rod and spindle control rod Make sure to use them Cross Section View of Lifting Setup To Forklift or Lifting Hook Leadscrew A Feed Rod Control Rod 12 Long 2xO Board Figure 18 Cross section of lifting setup 92 16 Speed Gearhead Lathe 6 Attach the lifting straps to the forklift forks or a hook and chain as shown in Figures 19 20 Forklift Forke Lifting 12 Long 2xO Board 2xO Board Lifting Hook with Chain 12 Long 2xO Boa
90. ip drawer catch tray and fluid tank The entire job only takes about a hour when you are prepared with the proper materials and tools Make sure to dispose of old fluid according to federal state and fluid manufacturer s requirements Items Needed Oty Safety Wear See Hazards section on Page 72 New 1 2 3 Gallons Empty 5 Gallon Bucket w Laid 2 Phillips Screwdriver 2 eere 1 MR TT 1 Disposable Shop As Needed Hose or Tubing x 60 Optional Piece Magnets Optional As Many As Desired South Bend Lathe Co To change the coolant 1 Position the coolant nozzle over the splash guard so that it 1s pointing behind the lathe If you have the optional hose connect it to the end of the nozzle now 2 Place the 5 gallon bucket behind the lathe and under the coolant nozzle If you have the optional hose place the hose in the bucket Otherwise you may need to have an another person hold the bucket up to the nozzle to prevent coolant from splashing out of the bucket 3 Turn the coolant pump ON and pump the old fluid out of the reservoir Turn the pump OFF immediately after the fluid stops flowing NOTICE Running the coolant pump without adequate fluid in the tank may permanently damage it which will not be covered under warranty 4 DISCONNECT L
91. ire trial and error Correcting this 1s simply a matter of reversing the positions where two of the incoming power source wires are connected To correct wiring that is out of phase 1 Push the STOP button turn the master power switch to OFF and disconnect the machine from power 2 Open the electrical box and swap any two hot wires coming from the plug as illustrated in Figure 148 3 Close and latch the electrical box and reconnect the machine to the power source ms To Power Supply MASTER POWER SWITCH Swap any two of these wires Figure 148 Swapping L1 and L2 power connections lo correct out of phase wiring 90 South Bend Lathe Co For Machines Mfg Since 3 11 16 Speed Gearhead Lathe Wiring Overview Electrical Box Page 93 Power Supply Connection Page 98 Work Lamp Page 98 Chuck Guard Safety Switch Page 98 4 Spindle ON OFF Brake Pedal Safety Switch Switch Page 98 4 P Page 97 Coolant End Gear Cover 4 Pump Motor Safety Switch Page 95 Page 98 Spindle Motor Page 95 4 South Bend Lathe Co Digital Readout Unit See Unit Manufacturer s Owner s Manual Control Panel Page 97 91 16 Speed Gearhead Lathe E N 3 A R For Machines Mfg Since 3 11 Component Location I
92. is engaged with the leadscrew n Stop Plate Stop Collar Figure 69 Adjustable feed rod stop The adjustable feed stop system will only stop carriage movement if the carriage is engaged with the feed rod When the carriage is engaged with the leadscrew for threading operations the adjustable feed stop system WILL NOT stop carriage movement you must use the half nut lever instead Otherwise the carriage can crash into the chuck or if it contacts the stop the leadscrew shear pin will break Before doing any threading operations make sure to loosen the feed stop collar so it slides freely on the feed rod and will not interfere with carriage travel 50 OPERATION For Machines Mfg Since 3 11 Micrometer Stop The micrometer stop used to limit carriage travel for production runs or make final adjustments to the carriage position To ensure accuracy with repeatable operations the operator must ensure that carriage contact is done in a soft and careful manner The micrometer stop should never be used as a stop for power feeding operations NOTICE The micrometer stop is not designed to stop carriage movement when the leadscrew or feed rod is engaged doing so may damage the micrometer stop or lathe components Tools Needed Oty Hex Wrench 8mm 1 Graduated Dial Incremento cos bec tee PI BE 0 001 One Full Revolution eene 0 050
93. it enters the electrical cabinet The strain relief must be tightened against the outer jacket of the cord however avoid over tightening the strain relief or it may crush the cord and cause a short Test the strain relief to ensure it is properly tightened by pulling the cord from outside the cabinet with light to moderate force When the strain relief is properly tightened the cord will not move inside the cabinet Connect the incoming hot wires to the upper master power switch terminals and the ground wire to the ground terminal as illustrated in Figure 27 ms To Power Figure 27 Power connection at master power switch 4 Make sure the wires have enough slack so that they do not bind at the terminals 5 Close and lock the main electrical box door South Bend Lathe Co 27 16 Speed Gearhead Lathe PREPARATION For Machines Mfg Since 3 11 4 DISCONNECT LATHE FROM POWER Test Run After all preparation steps have been completed the machine and its safety features must be tested to ensure correct operation If you discover a problem with the operation of the machine or its safety components shut the machine down disconnect it from power and do not operate it further until you have resolved the problem 5 Make sure that the chuck and jaws if installed are secure refer to Chuck Installation on Page 35 then lower the chuck guard 0 Turn the coolant switch see
94. ith the lathe or existing equipment the operator must have enough experience to know when to use a different machine or find a safer way Disconnect Power Serious entanglement or impact injuries could occur if the lathe is started while you are adjusting servicing or installing the chuck Always disconnect the lathe from power before performing these procedures Proper Maintenance All chucks must be properly maintained and lubricated to achieve maximum clamping force and withstand the rigors of centrifugal force To reduce the risk of a thrown workpiece follow all maintenance intervals and instructions in this document Chuck Capacity Avoid exceeding the capacity of the chuck by clamping an oversized workpiece If the workpiece is too large to safely clamp with the chuck use a faceplate or a larger chuck if possible Otherwise the workpiece could be thrown from the lathe during operation resulting in serious impact injury or death Clamping Force Inadequate clamping force can lead to the workpiece being thrown from the chuck and striking the operator or bystanders Maximum clamping force is achieved when the chuck is properly maintained and lubricated all jaws are fully engaged with the workpiece and the maximum chuck clamping diameter is not exceeded Trained Operators Only Using a chuck incorrectly can result in workpieces coming loose at high speeds and striking the operator or bystanders with deadly force
95. lant nozzle Feed Rang fever SPINQYE SPEED 40 60 100 SPINOLE CHANGING SPEEDS a IS JOTATING 80 120 200 Power Light Illuminates when power 16 enabled x to all lathe electrical controls F e ag STOP Button Cuts power to the spindle motor Co ra and coolant pump T EXCEED SPINDLE SPEED OF 330 RPM o wA Jog Button Turns spindle motor ON when being MODEL SBIO54F pressed b 16 x 40 16 SPEED GEARHEAD VERSE Feed Direction Lever Gearbox Controls THREAD AND FEED CHART Figure 5 Feed controls on headstock E min Feed Rate Feed Range Lever Shifts the quick change Ce cu 9 amp Threading Charts gearbox into low range neutral or high range Feed Direction Lever Controls the direction of the leadscrew or feed rod Control Panel Low h dien m p y ON S STOP T Light Button us 2 LCh2w m REVERSE s SA umm m oue Figure 7 Ouick change controls Quick Change Controls Coolant Switch Quick Change Gearbox Controls Set the quick change gearbox configuration for feeding and threading operations Figure 6 Control panel 6 South Bend Lathe Co For Machines Mfg Since 3 11 INTRODUCTION 16 Speed Gearhead Lathe Carriage Controls F G H I
96. largest motor or sum of all motors and electrical devices that might operate at one time during normal operations SB1053 Full Load Rating 20 3 Amps SB1054F Full Load Rating 10 15 Amps SB1055F Full Load Rating 10 23 Amps The full load current is not the maximum amount of amps that the machine will draw If the machine is overloaded it will draw additional amps beyond the full load rating If the machine is overloaded for a sufficient length of time damage overheating or fire may result especially 1f connected to an undersized circuit To reduce the risk of these hazards avoid overloading the machine during operation and make sure it 1s connected to a power supply circuit that meets the requirements in the following section 18 PREPARATION For Machines Mfg Since 3 11 Circuit Requirements Model SB1053 This machine is prewired to operate on a 220V power supply circuit that has a verified ground and meets the following requirements Nominal Voltage 220V 230V WON CLG T 60 Hz Phdse 3 Phase Circuit RAVINE 30 Amps Plug Receptacle Type NEMA L15 30 Cord S Type 4 Wire 10 AWG 300 VAC Model SB1054F amp SB1055F These machines are prewired to operate on a 440V power supply circuit that has a verified ground and meets the following requirements
97. ld come to a quick stop If the brake pedal has no effect on the lathe push the STOP button and refer to the Brake amp Switch subsection on Page 80 to make any required adjustments After verifying the brake works correctly continue with the next step Move the spindle ON OFF lever to the OFF middle position Remove the lathe end gear cover This trips a safety switch that should prevent the lathe from starting while the cover is removed Stand away from all the exposed gears on the side of the headstock and attempt to start the lathe If the lathe starts with the end gear cover removed the safety switch is not operating correctly This safety feature must operate properly before continuing Press the STOP button to turn the lathe OFF disconnect the lathe from power and call Tech Support for help Push the STOP button in move the spindle ON OFF lever to the OFF position then replace the end gear cover South Bend Lathe Co PREPARATION 16 Speed Gearhead Lathe 22 Lift the chuck guard up this will activate 23 24 the chuck guard safety switch Reset the STOP button and attempt to start the lathe If the lathe starts with the chuck guard in the up position the safety switch is not operating correctly This safety feature must operate properly before continuing Press the STOP button to turn the lathe OFF disconnect it from power and call Tech Support for help Point the coola
98. lding of the steamboat the locomotive the electric motor the automobile and all kinds of machinery used in industry Without the lathe our great industrial progress of the last century would have been impossible How To Run a Lathe 15th Edition South Bend Lathe The lathe represented in this manual is a modern day version of the screw cutting lathes that trace their roots back to the 1700 s which were themselves technological improvements of the bow lathe that can be traced back thousands of years to the ancient Egyptians Now almost 300 years later these modern screw cutting lathes are not just a piece of refined machinery but a culmination of human ingenuity and knowledge embodied into the design and synergy of thousands of interworking parts some of which represent the life s work and dreams of many inventors mechanical engineers and world class machinists including the likes of Leonardo da Vinci Henry Maudsley and the founders of South Bend Lathe John and Miles O Brien And now the torch 1s passed to you to take the oldest and most important type of machine tool and carry on the tradition As the operator of a South Bend Lathe you now join the ranks of some very famous and important customers such as Henry Ford who used the machines he purchased to help him change the world Capabilities This 16 Speed Toolroom Lathe is built for daily use in a busy industrial setting Loaded with many nice features
99. long the length of the bedway Familiarize yourself with the steady rest components shown in Figure 61 to better understand its operation Finger Adjustment I Knob 4 TD Figure 62 Workpiece mounted in the steady rest Finger Roller 5 Loosen the three leaf screws so the finger roller positions can be adjusted lt gt m aa 6 Use the finger adjustment knobs to position Figure 61 Steady rest components the bottom two finger rollers against the workpiece as shown in the example of To install and use the steady rest Figure 62 1 DISCONNECT LATHE FROM POWER 7 Close the steady rest then use the finger adjustment knobs to adjust all three finger rollers so that they just touch the workpiece without causing deflection 2 Thoroughly clean all mating surfaces then place the steady rest base on the bedways so the triangular notch fits over the bedway prism Note The finger rollers should properly support the workpiece along the spindle centerline 3 Position the steady rest where required to while still allowing it to freely rotate properly support the workpiece then tighten the hex nut shown in Figure 61 to secure it 8 Tighten the three leaf screws to secure the in place settings 46 South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe Follow Rest Carriage amp Compound The follow rest mounts to the saddle with two R est Lo cks cap screws see
100. lways use a lifting support or protective device to reduce this risk when installing or removing a chuck Plywood Protection Plate for Chucks Installed by Hand Plywood amp 2x4 Chuck Cradle SR SR Plywood Chuck Crad Straight Cute Fre Threaded Hole for Lifting Eye Fabricated Steel Lifting Hook gt WV Figure 36 Examples of common devices used during chuck installation and removal South Bend Lathe Co For Machines Mfg Since 3 11 Chuck Installation To ensure accurate work it is extremely important to make sure the spindle nose and chuck mating surfaces tapers are clean Even a small amount of lint or debris can affect accuracy The chuck 1s properly installed when all camlocks are tight the spindle and chuck tapers firmly lock together and the back of chuck is firmly seated against the face of the spindle all the way around without any gaps To install the chuck 1 DISCONNECT LATHE FROM POWER 2 Use an appropriate lifting support or protective device to protect the ways and support the chuck 3 Clean and lightly oil the camlock studs then thoroughly clean the mating surfaces of the spindle and chuck 4 Install the chuck by inserting the camlock studs straight into the spindle cam holes Important Avoid inserting the studs by pivoting them in from an angle or rotating the spindle This can damage studs or bores CORRECT INCORRECT Figure 37
101. ly secure the cutting tool with at least two tool post bolts 3 Check and adjust the cutting tool to the spindle centerline as instructed in the next subsection South Bend Lathe Co For Machines Mfg Since 3 11 Aligning Cutting Tool with Spindle Centerline For most operations the cutting tool tip should be aligned with the spindle centerline as illustrated in Figure 67 Cutting Spindle Center Line Figure 67 Cutting tool aligned with spindle centerline viewed from tailstock There are a number of ways to check and align the cutting tool to the spindle centerline If necessary you can raise the cutting tool by placing steel shims underneath it The shims should be as long and as wide as the cutting tool to properly support it Below are two common methods e Align the tip of the cutting tool with a center installed in the tailstock as instructed on the next page For this to work the tailstock must be aligned to the spindle centerline refer to Aligning Tailstock To Spindle Centerline on Page 42 for detailed instructions e Make a facing cut on a piece of round bar stock If the tool is above or below the spindle centerline a nub will be left in the center of the workpiece Adjust the height of the tool then repeat the facing cut to check the adjustment Repeat as necessary until the center of the workpiece face is smooth South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe Tools Nee
102. me to a stop on its own or or dislodging components that can cause use the brake small shards of metal to become dangerous projectiles Always select the right cutter for Crashes Aggressively driving the cutting tool the job and make sure it is sharp A correct or other lathe components into the chuck sharp tool decreases strain and provides a may cause an explosion of metal fragments better finish which can result in severe impact injuries and major damage to the lathe Reduce this Securing Workpiece An improperly secured risk by releasing automatic feeds after use workpiece can fly off the lathe spindle with not leaving lathe unattended and checking deadly force which can result a severe clearances before starting the lathe impact injury Make sure the workpiece is Make sure no part of the tool tool holder properly secured in the chuck or faceplate compound rest cross slide or carriage will before starting the lathe contact the chuck during operation Chucks Chucks are very heavy and difficult to Long Stock Safety Long stock can whip violently grasp which can lead to crushed fingers or if not properly supported causing serious hands if mishandled Get assistance when impact injury and damage to the lathe handling chucks to reduce this risk Protect Reduce this risk by supporting any stock your hands and the precision ground ways that extends from the chuck headstock more by using a chuck cradle or piece of plywood than three t
103. n the gears Make sure to get grease between the gear teeth but do not fill the teeth valleys Install the end gears and mesh them together with an approximate 0 002 backlash Once the gears are meshed together apply a small dab of grease between them where they mesh together this grease will be distributed when the gears rotate and re coat any areas scraped off during installation 71 16 Speed Gearhead Lathe V 7 E N A r4 M For Machines Mfg Since 3 11 Coolant System Service The coolant system consists of a fluid tank pump and flexible nozzle The pump pulls fluid from the tank and sends it to the valve which controls the flow of coolant to the nozzle As the fluid leaves the work area 1t drains back into the tank through the chip drawer and catch tray where the swarf is screened out Use Figure 118 to identify the locations of the coolant system controls and components Coolant Pump Switch lt E 3 4 e Li Chip Drawer Figure 118 Coolant system controls and components 79 Although most swarf from machining operations is screened out of the coolant before it returns to the tank small particles will accumulate 1n the bottom of the tank in the form of sludge To prevent this sludge from being pulled into the pump and damaging it the pump s suction tube is positioned a couple inches from the bottom of the tank and fitt
104. nd Gears on Page 56 for detailed instructions Feed Range Lever Selects the low or high feed rate range by re aligning the headstock transfer gear In the middle position disables power feed see Figure 77 Figure 77 Feed range lever Feed Direction Lever Selects the direction of power feed see Figure 78 Note The spindle must be stopped to use this lever When the lathe is running use the quick change feed direction knob on the apron lt FORWARD Figure 78 Feed direction lever in the neutral position 54 OPERATION For Machines Mfg Since 3 11 Quick Change Gearbox Feed Levers Configure the quick change gearbox gears for the feed rate selected see Figure 79 Figure 79 Quick change gearbox levers Feed Control Lever Directs the power feed to either the cross slide or the carriage see Figure 80 When the lever is down and the indent pin is pointing up the cross slide is selected Conversely when the lever is up and the pin is pointing down the carriage is selected In the middle position the apron gears are disengaged from the feed rod and neither component will move Note When using this lever you may need to slightly rotate the handwheel of the component you are trying to engage so that the apron gears can mesh Figure 80 Apron power feed controls South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe Feed Direction Knob Ch
105. ndex Electrical Box Page 93 Work Lamp gt Page 98 Master Power OU mm Page 93 Coolant Pump Motor Page 95 Spindle Motor Page 95 Digital Readout Unit See Unit Manufacturer s Owner s Manual Chuck Guard Safety Control Panel Switch Page 98 Page 97 End Gear Cover Safety Switch Page 98 2 Speed Motor SWCD Page Brake Pedal Safety Spindle ON OFF Switch Page 98 Switches Behind Cover Page 97 Figure 149 Component location index 92 South Bend Lathe Co For Machines Mfg Since 3 11 E 5 T 7 16 Speed Gearhead Lathe Electrical Box Wiring d J c To Chuck Guard Safety Switch Page 98 o 3 m mu 3 m m 3 3 8 b 16 S e LA S 6 O Li L3 L1 L2 L3 LI 12 a2 5 5 6 19122 83 45 TL 2 1 3 L1 L2 1 13 6
106. ndlathe com e Shafts are made of alloy steel and vacuum heat treated to HRC60 1 for high rigidity and durability e Centers use a combination of roller bearings n thrust ball bearings and ball bearings SB1434 8 Backplate D1 6 Applicable for CNC lathes and high speed turning e Waterproof design e 60 centers SB1279 10 Pc Precision 5 C Collet Set Set of 10 collets sized from V4 34 Same quality as the individual collets only packaged in one convenient set Figure 99 Model SB1279 10 Pc 5 C Collet Set SB1268 Collect Attachment This collet attachment takes advantage of the South Bend factory made collet port in the lathe gear cover This accessory installs easily on these South Bend Lathes without having to modify the gear cover The Model SB1268 is Figure 101 Model SB1239 High Performance Live SEE Center capable of delivering years of trouble free service It is manufactured with the same high quality workmanship materials and tolerances South Bend machinery is known for SB1243 MT 4 Long Nose High Performance Live Center Figure 100 Model SB1268 Collect Attachment South Bend Lathe Co 63 16 Speed Gearhead Lathe EY C 9 TII o T ES For Machines Mfg Since 3 11 SB1247 MT 4 Bull Nose Center e Cr Mo steel hardened to HRC60 1 e Taper roller amp ball bearing construction e Great for turning pipes F
107. nnect switch see Figure 25 between the power source and the machine This switch serves as the means to completely disconnect the machine from power to prevent electrocution from accidental startup during adjustments maintenance or service to the machine Locking Fower Source Disconnect Switch Machine Conduit Conduit Figure 25 Typical hardwire setup with a locking disconnect switch South Bend Lathe Co For Machines Mfg Since 3 11 AWARNING Electrocution could occur if you attempt this procedure with the power wires connected to the power source The incoming power wires must be disconnected from power before performing this procedure Connecting Power 1 Make sure the master power switch 1s turned to the OFF position then open the electrical cabinet door 2 Refer to Figure 26 to identify the master power switch and the hole at the bottom of the electrical cabinet for the incoming power 1 E im e f 3 a4 LAE T7358 ET A gis ie P i T E 3 E l m 3 1 5 LED Wil P P EIEEEI zT 4 1 m cm gt Master Power Switch m 7 BE CUIU NUN AN Figure 26 Location to connect power inside main electrical cabinet PREPARATION 16 Speed Gearhead Lathe Note For the Model SB1053 thread the power cord through an approved and properly sized strain relief as
108. nt nozzle down into the chip drawer and verify that there is coolant in the reservoir refer to Coolant System Service on Page 72 for detailed instructions Re start the lathe use the coolant pump switch on the control panel to start the pump then open the valve Verify that the coolant flows from the nozzle then close the valve and turn the pump OFF Congratulations The test run is complete Turn the lathe OFF and perform the Spindle Break In procedure on the next page NOTICE After the first 16 hours of use the V belts will stretch and seat into the pulley grooves The V belts must be properly re tensioned after this period to avoid reducing their useful life Refer to the V Belts subsection on Page 80 for detailed instructions 31 16 Speed Gearhead Lathe Spindle Break In The high quality bearings and gears used in this lathe are manufactured to very close tolerances Before subjecting the lathe to full loads it is essential to complete the spindle break in process as described below This will ensure the best results and maximum life of the precision components inside the lathe The break in procedure must be performed in succession with the Test Run procedure described in this manual because many of the test run steps prepare the lathe controls for the break in process Important Do not perform the break in procedure independently from the Test Run section serious damage could occur to the lathe
109. or added protection The front panel secures all drawers when the top lid is latched or locked and neatly slides under the bottom drawer when accessing the drawers All hardware is brass including the heavy duty side handles Figure 105 Model SB1251 Oak Tool Chest South Bend Lathe Co For Machines Mfg Since 3 11 V N 7 3 A c TA 16 Speed Gearhead Lathe Maintenance Schedule AWARNING Always disconnect power to the machine before performing maintenance Failure to do this may result in electrocution or accidental startup injury Each operator of this machine is responsible for ensuring proper care of the equipment We strongly recommend all operators make a habit of following the daily maintenance procedures For optimum performance from this machine this maintenance schedule must be strictly followed Use the chart provided on Page 66 to ensure this is done Ongoing To maintain a low risk of injury and proper machine operation if you ever observe any of the items below shut down the machine immediately and fix the problem before continuing operations Loose mounting bolts or fasteners Worn frayed cracked or damaged wires Guards removed STOP button not working correctly or not requiring you to reset it before starting the machine again A reduction in braking speed or efficiency Oil level not visible in the sight glasses Coolant not flowing out Any other unsafe condition Daily Before
110. or incidental contingent special or consequential damages arising from the use of our products We do not warrant or represent that this machine complies with the provisions of any law act code regulation or standard of any domestic or foreign government industry or authority In no event shall South Bend s liability under this warranty exceed the original purchase price paid for this machine Any legal actions brought against South Bend Lathe Company shall be tried in the State of Washington County of Whatcom This is the sole written warranty for this machine Any and all warranties that may be implied by law including any merchantability or fitness for any purpose are hereby limited to the duration of this warranty To take advantage of this warranty contact us by mail or phone to give us the details of the problem you are having Thank you for your business and continued support South Bend Lathe Co South Bend Lathe Co P O Box 2027 Bellingham WA 98227 PHONE 360 734 1540 Administrative Offices FAX 360 676 1075 International FAX 360 734 1639 USA only southbendlathe com Printed In U S A HKTRBLCRJBIS14030
111. orks with the adjustable apron stop system to disengage the feed rod from the apron The feed clutch release point is adjusted at the factory However it can be re adjusted to increase or decrease the load it will take before the clutch slips Keep mind that correctly adjusting the feed rod clutch for your operation is a matter of trial and error and experience NOTICE Setting the feed clutch for too high of a load defeats its purpose and could lead to lathe damage in the event of a crash Tools Needed Qty Hex Wrench 2 5mm ccccecececccececececececececees 1 Hex Wrench 3mm 1 To adjust the clutch release point 1 DISCONNECT LATHE FROM POWER 2 Remove the clutch front and side covers see Figure 130 From Here Clutch Front Cover Figure 130 Location of feed rod clutch side cover removed for photo clarity South Bend Lathe Co 3 Open the end gear cover then rotate the bottom end gear by hand until you can access the set screw in the clutch collar as shown in Figure 131 A Clutch Figure 131 Feed rod clutch collar components Mark the set screw hole and the rotational position of the collar on the feed rod for a reference Remove the set screw shown in Figure 131 Insert the hex wrench into one of the holes on the collar then rotate the collar f you need to adjust the clutch for a higher load rotate the collar upward If you ne
112. ous chemicals or loud noises These hazards can result in eye injury blindness long term respiratory damage poisoning cancer reproductive harm or hearing loss Reduce your risks from these hazards by wearing approved eye protection respirator gloves or hearing protection South Bend Lathe Co Trained Supervised Operators Only Untrained users can seriously injure themselves or bystanders Only allow trained and properly supervised personnel to operate this item Make sure safe operation instructions are clearly understood If electrically powered use padlocks and master switches and remove start switch keys to prevent unauthorized use or accidental starting Guards Covers Accidental contact with moving parts during operation may cause severe entanglement impact cutting or crushing injuries Reduce this risk by keeping any included guards covers doors installed fully functional and positioned for maximum protection 13 jewelry or long hair may get caught in moving parts causing entanglement amputation crushing or strangulation Reduce this risk by removing securing these items so they cannot contact moving parts Mental Alertness Operating this item with reduced mental alertness increases the risk of accidental injury Do not let a temporary influence or distraction lead to a permanent disability Never operate when under the influence of drugs alcohol when tired or otherwise distracted Safe En
113. ower Switch Figure 28 Location of the master power switch Figure 30 Feed range lever 28 South Bend Lathe Co For Machines Mfg Since 3 11 8 Set the spindle speed to 40 RPM You may have to manually rock the chuck back and forth to make the gears mesh a Turn the two speed motor switch to the LOW position b Move the spindle range lever so that the indicator points to the upper line on the right this 1s the low range for this motor speed see Figure 31 c Rotate the spindle speed lever so that the indicator points to the A Spindle Speed Lever Range Lever 40 80 100 165 245 375 825 1000 80 120 200 330 490 750412502000 O Spindle Range Lever at the Low Range Spindle Speed Lever at A 40 RPM 60 100 165 245 375 625 1000 80 120 200 330 490 750 112502000 A JBJC DJAJ BJ JC D Figure 31 Spindle speed set to 40 RPM NOTICE DO NOT use the jog button to help mesh the gears when changing spindle speeds or range This could damage the gears and connected components 9 To allow the carriage to move freely when the handwheel 1s rotated disengage the half nut lever put the feed control lever in disengaged position and make sure the carriage lock is loose see Figure 32 PREPARATION 16 Speed Gearhead Lathe Halfinut Lever Carriage lI B DISS Lock Bolt Em Disengaged Cross Sli
114. peeds while spindle is moving Severe machine damage will occur 59 OPERATION For Machines Mfg Since 3 11 Configuration Examples Use the following examples to better understand how to read the spindle speed chart and configure the controls for the correct speed Example 1 Spindle Speed of 40 RPM 1 Make sure the spindle 15 completely stopped and the spindle ON OFF lever is in the OFF middle position 2 Turn the motor switch to the LOW left position This will make the speeds in the top row of the spindle speed chart available see Figure 74 Low Motor Speed Makes Top Row Available TA a E BRR eee eee EJ 40 60 100 165 245 375 625 1000 a APT Dj e IS ROTATING Figure 74 A low motor speed makes the spindle speeds in the top row of the chart available 3 Move the spindle range lever so that the indicator points to the upper line see the illustration in Figure 75 This will make the first four or lower speeds in the top row of the chart available Note If necessary use the chuck key to rock the spindle back and forth to help mesh the gears as you move the levers Spindle Range Lever at the Low Range Spindle Speed Lever at A 40 RPM a 60 100 165 245 375 625 1000 80 120 200 330 490 750 1250 2000 A B C DJA B C D Fig
115. quivalent OIL AMOUR 52 4 8 Quarts Check Add Frequency 0 Daily Change Frequency Every 6 Months The headstock gearing 1s lubricated by an oil bath that distributes the lubricant with the motion of the gears much like an automotive manual transmission Checking Oil Level The headstock has the proper amount of oil when the sight glass shown in Figure 106 is halfway full 80 120 200 330 490750g12502000 THREAD AND FEED CHART caw DW 4 2205251 Headstock Oil Sight Figure 106 Location of headstock oil sight glass South Bend Lathe Co Adding Oil The oil fill cap is located on top of the headstock as shown in Figure 107 ill Cap pa Fc Figure 107 Headstock fill and drain plugs Changing Oil Items Needed Oty Wrench 1 Catch Pan 8 Qt MIDI La eee eiie trono reos 1 To change the headstock oil 1 DISCONNECT LATHE FROM POWER 2 Remove the end gear cover 3 Remove the fill cap on top of the headstock to allow the oil to drain more freely 4 Place the catch pan under the headstock drain plug see Figure 107 then remove the plug and allow all of the oil to drain out 5 Replace the drain plug and clean up any oil that spilled Tip To make this task easier in the future replace the drain plug with a small pipe extension and cap Make su
116. rd 12 Long 2xO Board Figure 20 Lathe set up for lifting with hook and chain 7 Unbolt the lathe from the shipping pallet then with two other people to help keep the lathe from swaying raise it a couple of inches If the load is not well balanced or you see any other difficulties with the lifting equipment immediately lower the lathe to the pallet again Resolve any lifting or balancing issues then repeat this step 8 Lift the lathe enough to clear the shipping pallet and remove the pallet then lower the lathe enough to clear any small floor obstacles and move it to the prepared location and lower it in place EJ a PREPARATION For Machines Mfg Since 3 11 Leveling amp Mounting You must level your machine and either use the included foot pads and leveling hardware or bolt and shim your lathe to the floor Because mounting your lathe to the floor with permanent hardware is an optional step and floor materials may vary floor mounting hardware is not included Leveling NOTICE For accurate turning results and to prevent warping the cast iron bed and ways the lathe bedways MUST be leveled from side to side and from front to back on both ends Re check the bedways 24 hours after installation two weeks after that and then annually to make sure they remain level Leveling machinery helps precision components such as bedways remain straight and flat during the lifespan of the machine
117. re that this assembly does not interfere with properly securing the end gear cover 6 Addoil to the headstock reservoir until the sight glass is halfway full 7 Replace the end gear cover before re connecting the power 67 16 Speed Gearhead Lathe E V 7 E N A r4 E For Machines Mfg Since 3 11 Quick Change Gearbox Oil Type Mobil Vactra 2 or ISO 68 Equivalent Oil AMOUNT 1 4 Quarts Check Add Daily Change Frequency Annually Checking Oil Level The quick change gearbox has the proper amount of oil when the sight glass shown in Figure 108 is halfway full THREAD AMD FEED CHART ME Gearbox Oil Sight Glass Figure 108 Location of quick change gearbox oil sight glass Adding Oil Remove the quick change gearbox fill plug see Figure 109 then add the oil until the level is approximately halfway in the gearbox oil sight glass Figure 109 Locations of the quick change gearbox fill and drain plugs 68 Draining Oil Place a catch pan under the quick change gearbox drain plug see Figure 109 loosen the fill plug and remove the drain plug then allow the gearbox reservoir to empty Apron Oil Type Mobil Vactra 2 or ISO 68 Equivalent Oil AMOUN need Ine ues 1 2 Quarts Check Add Daily Change Frequency
118. riage feed handwheel is hard to move Cutting tool or machine components vibrate excessively during cutting Possible Cause Workpiece is unbalanced Loose or damaged V belt s V belt pulleys are not properly aligned Worn or broken gear present Chuck or faceplate is unbalanced Gears not aligned in headstock or no backlash Broken gear or bad bearing Workpiece is hitting stationary object Spindle bearings at fault Wrong spindle speed or feed rate Dull tooling or poor tool selection Tool height not at centerline Too much play in gibs Quill is not retracted all the way back into the tailstock Contaminants not removed from taper before inserting into quill Gibs are out of adjustment Handwheel is loose or backlash is high Leadscrew mechanism worn or out of adjustment Dovetail slides loaded with shavings dust or grime Gib screws are too tight Backlash setting too tight cross slide only Bedways are dry Tool holder not tight enough Cutting tool sticks too far out of tool holder lack of support Gibs are out of adjustment Dull cutting tool Incorrect spindle speed or feed rate TROUBLESHOOTING 16 Speed Gearhead Lathe Possible Solution Re install workpiece as centered with the spindle bore as possible Re tension replace the V belt s as necessary see Page 80 Align the V belt pulleys Inspect gears and replace if necessary Re balance
119. rs store an electrical charge for up to 10 minutes after being disconnected from the power source To reduce the risk of being shocked wait at least this long before working on capacitors Wire Component Damage Damaged wires or components increase the risk of serious personal injury fire or machine damage If you notice that any wires or components are damaged while performing a wiring task replace those wires or components before completing the task Experiencing Difficulties If you are experiencing difficulties understanding the information included in this section contact our Technical Support at 360 734 1540 WIRING DIAGRAM COLOR KEY BLACK BLUE WHITE GREEN GRAY Gy LIGHT BLUE BROWN NOTIC South Bend Lathe Co PINK WHITE wi ORANGE g The photos and diagrams included in this section are best viewed in color You can m see them in color at www southbendlathe com YELLOW GREEN C YELLOW d Y PURPLE TUR aviose 89 16 Speed Gearhead Lathe 5 E N 3 si i T ted For Machines Mfg Since 3 11 Correcting Phase Polarity Wiring This sub section 1s only provided for troubleshooting If you discover during the test run that the lathe will not operate or that the spindle runs backwards the lathe may be wired out of phase Without the proper test equipment to determine the phase of power source legs wiring machinery to 3 phase power may requ
120. settings for metric inch modular position and diametral threading b Point the left gearbox lever to the C For inch or metric threads use the standard end gear configuration For modular or diametral c Point the middle gearbox lever to the threads use the alternate configuration Use the controls on the lathe and follow along d Position the bottom gearbox lever in the with the example below to better understand 2 slot how to set up the lathe for the desired threading operation e Point the right gearbox lever to Y Example Metric Thread Width of 2 5mm The lathe is now set up to cut a metric thread 1 Make sure the end gears are in the standard width of 2 5mm configuration which is used for all metric threading refer to End Gears on Page 56 for detailed instructions 2 Locate the line in the metric thread chart that lists the setting for 2 5mm threads as illustrated in Figure 86 2 0 LCRIY 25 LCRSY 3 0 LCR6Y 3 5 LCR8Y 4 0 HCR3Z 4 5 HCS2Y Figure 86 Metric thread chart with a width of 2 5 mm highlighted 58 South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe Apron Controls The half nut lever engages the apron with the leadscrew which moves the carriage and cutting tool along the length of the workpiece for threading operations see Figure 87 Important Make sure the feed control lever is in the disengaged middle position before attempting
121. sly injured by this machine Only install in an access restricted location Min 30 Electrical w D 7 if Access 0 Door AY Keep Workpiece Loading Area Unobstructed A Power Connection Location SB1054F HERESIES re fiom por 127 5 se 19 far Figure 15 Space required for full range of movement 99 South Bend Lathe Co For Machines Mfg Since 3 11 Lifting amp Moving AWARNING This machine and its parts are heavy Serious personal injury may occur if safe moving methods are not used To reduce the risk of a lifting or dropping injury ask others for help and use power lifting equipment Do not attempt to lift or move this lathe without using the proper lifting equipment or the necessary assistance from other people Each piece of lifting equipment must be rated for at least 5000 lbs to support dynamic loads that may be applied while lifting Refer to the Things You ll Need subsection on Page 17 for details To lift and move the lathe 1 Remove the shipping crate top and sides then remove the small components from the shipping pallet 2 Useaforklift to move the lathe to its prepared location while it is still attached to the shipping pallet 3 To prepare for lifting the lathe balance the load by loosening the tailstock lock lever see Figure 16 and moving the tailstock to the end of the bedway Be sure to lock it
122. ssages to the way guides Repeat this process and move the carriage and cross slide through their full path of movement to distribute oil along the way guides Lubricate the guides once before and once after operating the lathe If the lathe is in a moist or dirty environment increase the lubrication interval Check the apron oil level through the sight glass before using the one shot oiler Figure 113 Location of one shot oiler on the apron South Bend Lathe Co 69 16 Speed Gearhead Lathe V 7 E N A N r4 E For Machines Mfg Since 3 11 Leadscrew Oil Type Mobil Vactra 2 or ISO 68 Equivalent ooi im As Needed Lubrication Frequency sese Daily Before lubricating the leadscrew clean it first with mineral spirits A stiff brush works well to help clean out the threads Make sure to move the carriage out of the way so you can clean the entire length of the leadscrew Apply a thin coat of oil along the length of the leadscrew Use a stiff brush to make sure the oil is applied evenly and down into the threads Note In some environments abrasive material can become caught in the leadscrew lubricant and drawn into the half nut In this case lubricate the leadscrew with a quality dry lubricant Ball Oilers amp Oil Cup Oil Type Mobil Vactra 2 or ISO 68 Equivalent Oil Amount As required Pump Oil Can w Plastic or Rubber Cone Tip
123. stays engaged for 275 TPI the drawer could fall out and hit your legs and feet causing serious injury Therefore open the drawer slowly and avoid opening it more than halfway South Bend Lathe Co 61 16 Speed Gearhead Lathe OPERATION For Machines Mfg Since 3 11 Coolant System AWARNING When the coolant pump switch is turned ON the 2 BIOLOGICAL amp POISON fluid is delivered through the nozzle attached to 2 HAZARD the carriage The flow is controlled by the valve Use the correct personal lever at the base of the nozzle see Figure 97 protection equipment when handling coolant Follow federal state and fluid manufacturer requirements for proper disposal NOTICE Running the pump without adequate fluid in the coolant tank may permanently damage it which will not be covered under warranty Coolant Pump Switch To use the coolant system on your lathe 1 Make sure the coolant tank is properly serviced and filled with the appropriate fluid and that you are wearing the necessary personal protection equipment Figure 97 Coolant system controls and components Always use high quality coolant and follow the manufacturer s instructions for diluting The quick reference table shown in Figure 98 can help you select the appropriate fluid 2 Position the coolant nozzle for your operation 3 Usethe coolant pump switch on the control Refer to Coolant System Service on
124. sults from your new machine Step by step instructions for these adjustments can be found on the pages referenced below Factory adjustments that should be verified e Tailstock alignment Page 42 e Compound and cross slide backlash adjustment Page 75 e Gib adjustments Page 77 South Bend Lathe Co For Machines Mfg Since 3 11 OPERATION 16 Speed Gearhead Lathe To complete a typical operation the operator Operation Overview PE ec anaes The purpose of this overview is to provide 1 Puts on safety glasses rolls up sleeves the novice machine operator with a basic removes Jewelry and secures any clothing understanding of how the machine 1 used during jewelry or hair that could get entangled in operation so they can more easily understand moving parts the controls discussed later in this manual 2 Examines the workpiece to make sure it Note Due to the generic nature of this overview is suitable for turning then mounts the it 18 not intended to be an instructional guide workpiece in one of the chucks or on the for performing actual machine operations faceplate and removes the chuck key from To learn more about specific operations and the chuck machining techniques seek training from people experienced with this type of machine and do 3 Mounts the tooling aligns it with the additional research outside of this manual by workpiece then backs it away to establish a reading how to books trade magazin
125. t 1s centered in the chuck 207 16 Speed Gearhead Lathe OPERATION For Machines Mfg Since 3 11 5 Tighten each Jaw in small increments After you have adjusted the first Jaw continue Fa ceplate tightening in an opposing sequence as Refer to the Chuck Installation Page 35 and shown in Figure 43 Chuck Removal Page 36 instructions to install or remove the faceplate The 12 faceplate included with your lathe offers a wide range of uses including machining non concentric workpieces straight turning between centers off center turning and boring Workpiece The tools needed for mounting workpiece will vary depending on the type of setup you have AWARNING Machining non concentric workpieces at a Figure 43 4 jaw tightening sequence high speed could cause the workpiece to be thrown from the spindle with deadly force at 6 After the workpiece is held in place by the operator or bystanders To reduce this the jaws turn the chuck by hand and pay risk only machine non concentric workpieces attention to the workpiece alignment at low speeds and clamp counter weights to the faceplate to balance it If the workpiece is not correctly aligned for your operation as you turn the chuck make fine adjustments by slightly loosening one jaw and tightening the opposing jaw until the workpiece is correctly aligned see Figure 44 for an example AWARNING Failure to properly secure a workpiece to the fac
126. t a chuck or faceplate with repeatable precision and ease AWARNING Never use spindle speeds faster than the chuck RPM rating or the safe limits of your workpiece Excessive spindle speeds greatly increase the risk of the workpiece or chuck being thrown from the machine with deadly force This lathe ships with the 3 jaw chuck installed This is a scroll type chuck where all three jaws move in unison when the chuck key is used The included 4 jaw chuck features independent jaws which are used for square or unevenly shaped stock and to mount work that needs to be adjusted to near zero total indicated runout If neither chuck can hold your workpiece the cast iron faceplate has slots for T bolts that hold standard or custom clamping hardware With the correct clamping hardware this faceplate will hold non cylindrical parts The chucks and faceplate have a D1 6 camlock mount chuck key is used to turn the locking cams to secure these devices to the spindle 34 OPERATION For Machines Mfg Since 3 11 Installation amp Removal Devices Because chucks are heavy and often awkward to hold some kind of lifting support or protective device should be used during installation or removal The weight and size of the chuck will determine the appropriate device to use refer to the following figure for examples AWARNING A dropped chuck can cause amputation serious crushing injuries or property damage A
127. t controls 78 Half Nut Adjustment The clamping pressure of the half nut 1s fully adjustable with a gib that can be loosened or tightened by two set screws Use this procedure to adjust the half nut if it becomes loose from wear or it is too tight for your preferences half nut that is too loose will make it difficult to produce accurate work A half nut that 1s too tight will increase the rate of wear on itself and the leadscrew Tool Needed Hex Wrench 3mm 1 To adjust the half nut 1 Disengage the half nut then remove the thread dial 2 Turn the two set screws see Figure 129 clockwise to tighten the half nut and counterclockwise to loosen it Make sure to turn the set screws 1n even amounts so one does not become tighter than the other f i 3 as Set a Figure 129 Half nut gib adjustment 3 Engage disengage the half nut several times and notice how it feels The half nut is correctly adjusted when it has a slight drag while opening and closing The movement should not be too stiff or too sloppy 4 Repeat Steps 2 3 if necessary until you are satisfied with the half nut pressure 5 Re install the thread dial South Bend Lathe Co For Machines Mfg Since 3 11 sS 3 V c Mmm 16 Speed Gearhead Lathe Feed Rod Clutch Adjustment The feed rod clutch helps protect the drivetrain from overload in the event of a crash and 1 w
128. t in place when the machine is started Reduce this risk by developing the habit of always removing these tools immediately after using them Work Area Clutter and dark shadows increase the risks of accidental injury Only operate this item in a clean non glaring and well lighted work area Properly Functioning Equipment Poorly maintained damaged or malfunctioning equipment has higher risks of causing serious personal injury compared to those that are properly maintained To reduce this risk always maintain this item to the highest standards and promptly repair service a damaged or malfunctioning component Always follow the maintenance instructions included in this documentation Unattended Operation Electrically powered equipment that is left unattended while running cannot be controlled and is dangerous to bystanders Always turn the power OFF before walking away Health Hazards Certain cutting fluids and lubricants or dust smoke created when cutting may contain chemicals known to the State of California to cause cancer respiratory problems birth defects or other reproductive harm Minimize exposure to these chemicals by wearing approved personal protective equipment and operating in a well ventilated area Difficult Operations Attempting difficult operations with which you are unfamiliar increases the risk of injury If you experience difficulties performing the intended operation STOP Seek an
129. tected from corrosion especially during the winter months Slide the carriage micrometer stop tailstock and steady rest down the lathe bed to make sure that way spotting is not beginning to occur South Bend Lathe Co Backlash Adjustment Backlash is the amount of free play felt while changing rotation directions with the handwheel This can be adjusted on the compound rest and cross slide leadscrews Before beginning any adjustment make sure that all associated components have been cleaned and lubricated NOTICE Reducing backlash to less than 0 002 is impractical and can lead to accelerated wear of the wedge nut and leadscrew Avoid the temptation to overtighten the backlash set screw while adjusting Compound Rest Tools Needed Hex Wrench 3mm 1 The compound rest backlash is adjusted by tightening the set screws shown in Figure 121 When these screws are adjusted against the leadscrew nut they offset part of the nut to remove play between the nut and leadscrew Figure 121 Compound rest backlash adjustment set screws To adjust the backlash rock the handwheel back and forth and tighten the screws slowly until the backlash is approximately 0 002 0 003 as indicated on the handwheel dial If you end up adjusting the nut too tight loosen the set screws tap the compound rest a few times with a rubber or wooden mallet and turn the handwheel slowly
130. ter against the workpiece or it may become difficult to 5 Seat the center firmly into the quill by remove later and it will result in excessive rotating the tailstock handwheel clockwise friction and heat which may damage the to apply pressure against the workpiece see workpiece and center the example in Figure 60 Removing Center from Tailstock Only apply enough pressure to securely mount the workpiece between centers Avoid over tightening the center against the workpiece or it may become difficult to remove later Also over tightening will result in excessive friction and heat which may damage the workpiece or center To remove the center from the quill hold onto it with a gloved hand or shop rag then rotate the tailstock handwheel counterclockwise to draw the quill back into the casting until the center releases If the center does not come loose by retracting the quill extend the quill to expose the slot shown in Figure 59 then use a drift key to remove the center EE d Drift Key Slot Figure 60 Example photo of a workpiece mounted between the centers Figure 59 Drift key slot in the side of the quill South Bend Lathe Co 45 16 Speed Gearhead Lathe OPERATION For Machines Mfg Since 3 11 Stead m est 4 Loosen the clamp knob that secures the two y halves of the rest and open the top portion The steady rest supports long shafts and can as shown in Figure 62 be mounted anywhere a
131. ting surfaces of the spindle bore adapter sleeve and the center making sure that no lint or oil remains on the tapers Note This will prevent the tapered surfaces from seizing due to operational pressures which could make it very difficult to remove the center 3 Mount a chuck or faceplate onto the spindle whichever is correct for your operation 4 Insert the center into the sleeve then insert the sleeve into the spindle bore through the chuck or faceplate Figure 57 shows an example photo of a dead center installed in the spindle using a lathe dog and faceplate for turning between centers Dead Center Figure 57 Example photo of using a dead center with a faceplate and lathe dog uA OPERATION For Machines Mfg Since 3 11 Removing Center from Spindle To remove the sleeve and center from the spindle insert a piece of round bar stock or similar tool through the outboard end on the left side of the headstock Have another person hold onto the sleeve and center with a gloved hand or shop rag then tap the sleeve loose NOTICE To avoid premature wear of the dead center or damage to the workpiece use low spindle speeds and keep the tip of the dead center mounted in the tailstock well lubricated Mounting Center in Tailstock Either a carbide tipped dead center or live center can be used in the tailstock Mounting instructions are the same for both Figure 58 shows an example photo of a de
132. tock lese RUE 17 oe Preparation a T 17 n P EPES P E E E Things You ll 17 Power Supply 18 Ive s Meu 18 pen a a Full Load Current Rating 18 Penne ed AP Mounting Center in Tailstock Circuit ei 18 Removing Center from Tailstock Grounding Requirements nens eere vas etae suis 19 Mounting Workpiece Between Centers 20 beady ROST desea UII ETE WT VOTH ON T 20 Follow Rest Cleaning amp Protecting eene 21 0 ow O Carriage amp Compound Rest Locks 22 dR 22 n T eet Electrical 22 Mad ie E 22 pos Tl MEAE mM 49 STE DT 2200 d vag Ia Space FOC Atl 22 Pop s MPO Ne Lifting amp Moving 23 M ue Leveling amp Mounting cette 24 anual Carriage Handwheel eese
133. tock Unstable Workpiece e Unsafe Inside Sater Outside Jan Uce Jaw Use Shallow ar Stock Unsafe Jaw Fosition and Foor Scroll Gear Engagement Safer Inside Unsafe Jaw Fosition Jaw Use Cylinder Foor Scroll Gear Engagemen Figure 42 Jaw selection and workpiece holding South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe 4 Jaw Chuck Refer to the Chuck Installation see Page 35 and Chuck Removal see Page 36 instructions to install or remove the 4 jaw chuck The 4 jaw chuck features independently adjustable hardened steel jaws for holding non concentric or off center workpieces Each jaw can be independently removed from the chuck body and reversed for a wide range of work holding versatility ZAWARNING Because of the dynamic forces involved in machining a non concentric or off center workpiece always use a low spindle speed to prevent the workpiece from breaking loose and being thrown from the lathe which could cause death or serious personal injury Mounting Workpiece To mount a workpiece on the 4 jaw chuck 1 DISCONNECT LATHE FROM POWER 2 Place a chuck cradle or plywood on the bedway below the chuck to protect the bedway surfaces 3 Usethe chuck key to open each Jaw so the workpiece will lay flat against the chuck face jaw steps or into the spindle opening 4 With the help from another person or a holding device position the workpiece so i
134. tric Feeding Figure 83 End gears in the standard configuration South Bend Lathe Co For Machines Mfg Since 3 11 Alternate Configuration Use the alternate end gear configuration when cutting modular or diametral threads as illustrated in Figure 84 NN Modular and Diametral Fitch Turning Figure 84 Alternate end gear configuration Configuring End Gears Tools Needed Oty Hex Wrench 6mm 1 Wrench 99 2 27 restes neus 1 To configure the end gears 1 DISCONNECT LATHE FROM POWER 2 Remove the end gear cover from the left side of the headstock 3 Remove the cap screw lock washer and flat washer from the 57 tooth end gear see Figure 85 Pivot Arm Gear y 6 Ve 779 Figure 85 gear components South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe 4 Loosen the pivot arm hex nut shown in Figure 85 then swing the pivot arm to the left so that 44T 56T gears are away from the gear Hand tighten the hex nut to keep the arm in place NOTICE As you remove and replace end gears use a stiff brush and mineral spirits to clean away the debris and grime from them then re lubricate them as instructed in End Gears on Page 71 5 Making sure to keep the shaft key firmly seated remove the spacer and the 57T gear then re install them as follows For the standard end gear configuration slide the 57T gear on first then the sp
135. ts List RE PART DESCRIPTION PSBIO531100 TAILSTOCK ASSEMBLY SB1053 nos 106 107 108 ms mo 17 me 2 126 127 1126 1129 1150 190 151 151 152 1155 1154 1136 1157 1138 1159 1140 1140 1141 1142 1143 1144 1145 1146 1147 145 149 150 1151 1152 153 154 155 16 Speed Gearhead Lathe PART 5 10551125 FOPIOSSIT29 F5B1053130 PSBIOD4F1130 FODIODS115 FoODIOE 115 F5B1053132 F5B10593133 FSB10551154 PSB1IO531136 FODIODSIT57 PSB10531138 FSB10D55139 FSB10551140 PSBIODS4F 1140 5504 26 120 PCAP35M FCAFOOM PSO8M 561055149 FPIO6M DESCRIPTION ALIGNMENT PIN ALIGNMENT BLOCK PILOT SET SCREW 2 1 25 X 25 SB1053 PILOT SET SCREW M8 1 25 X 50 SB1054F 55F TAILSTOCK BASE SB1053 TAILSTOCK BASE SB1054F 55F GIB ADJUSTMENT SCREW TAILSTOCK V WIPER V WIPER PLATE STRAIGHT WIPER PLATE TAILSTOCK STRAIGHT WIPER TAILSTOCK GIB COMPRESSION SPRING 25 X 45 CLAMP PLATE STUD FT 14 2 X 110 SB1053 STUD FT 14 2 X 125 SBIO54F 55F CAP SCREW M6 1 X 16 SET SCREW MG 1 X 12 CAP SCREW M6 1 X 12 CAP SCREW 8 1 25 X 70 CAP SCREW 8 1 25 X GO CAP SCREW M6 1 X 8 CAP SCREW M6 1 X 16 PHLP HD SCR M5 8 X 12 CLAMP FLAT WASHER HEX BOLT M10 1 5 X 55 BLK FLAT WASHER 14MM HEX NUT M14 2 HEX NUT M8 1 25 STEEL FLUTED RIVET 2 X 5MM LOCK WASHER 10MM PRIVOOIM PLWO
136. ug Note If installing a new brake band install the cap screw so there is one available hole to the left for future brake adjustment 7 Firmly push the pedal lever to the right until it stops and the brake band is fully clamped around the brake hub 8 Adjust the pedal stop approximately 25mm away from the pedal lever see Figure 136 then tighten the pedal stop cap screw Pedal Figure 136 Brake pedal travel adjustment 81 16 Speed Gearhead Lathe S E RV r4 For Machines Mfg Since 3 11 9 Locate the brake switch on the right side of the brake pedal see Figure 137 Figure 137 Brake switch and pedal cam 10 Push the pedal lever down to verify that the cam lobe pushes the brake switch plunger in When pushed 1n the switch should click If the switch does not click loosen the switch mounting screws push the brake pedal all the way down then move the switch closer to the cam lobe until it clicks Secure the switch in place at this location Note When the brake pedal is released there should be an approximate 3mm gap between the switch plunger and the cam lobe 11 Re install the motor access panel connect the lathe to power then test the brake pedal If the brake does not operate correctly properly repeat this procedure until it does Leadscrew Shear Pin Replacement The leadscrew is secured to a connecting collar that is part of the headstock drivetrain with th
137. un and spindle break in AWARNING To reduce the risk of serious injury when using this machine read and understand this entire manual before beginning any lathe operations Master Power Switch The master power switch enables power to all lathe electrical controls Main Power Switch Figure 2 Location of the master power switch Two Speed Motor Switch One of three controls used to select spindle speed Select LOW or HIGH motor speeds which represent the top or bottom row of speed available on the spindle speed chart see Figure 4 Two Speed Motor Switch Figure 3 Location of two speed motor switch Spindle Speed Levers amp Chart Spindle Figure 4 Spindle speed chart Spindle Speed Lever One of three controls used to select spindle speed Selects A B C or D gear position on the spindle speed chart Spindle Range Lever One of three controls used to select spindle speed Selects low or high range of spindle speeds on the spindle speed chart low range is on the left high range is on the right Spindle Speed Chart Displays the position of the two speed motor switch spindle speed lever and spindle range lever required to achieve each of the 16 available spindle speeds South Bend Lathe Co 5 16 Speed Gearhead Lathe INTRODUCTION For Machines Mfg Since 3 11 Feed Controls Coolant Switch Starts and stops the coolant pump Fluid flow 1s controlled by the valve on the coo
138. ure 46 Tailstock and quill lock levers locked position Graduated Dial 0000000 0 001 One Full Revolution eee 0 100 Increments on Quill DUCI 0 6 in 8 Increments Metric 0 160mm in 1mm Increments Positioning Tailstock 1 Pullthe tailstock lock lever backward away from the spindle to unlock the tailstock from the bedway 2 Slide the tailstock to the desired position 3 Push the tailstock lock lever forward toward the spindle to lock the tailstock against the bedway Using Quill 1 Release the quill lock lever 2 Turn the tailstock handwheel clockwise to move the quill toward the spindle or counterclockwise to move it away from it 3 Push the quill lock forward to lock the quill in place South Bend Lathe Co 39 16 Speed Gearhead Lathe Installing Tooling This tailstock uses a quill with an MT 4 taper that has a lock slot in the back of the bore that accepts tang arbors and drill bits see Figures 47 48 for examples with tangs into the tailstock OPERATION Figure 48 Example photos of inserting MT 4 tools For Machines Mfg Since 3 11 However other tooling without tangs such as the four remaining tools shown in Figure 47 can still be used if the potential load will not override the strength of the tapered fit For example smaller drill chucks drill bits and centers
139. ure 49 to remove the tool A pe Drift Key Slot Figure 49 Drift key slot in the side of the quill OPERATION 16 Speed Gearhead Lathe Offsetting Tailstock The tailstock can be offset from the spindle centerline for turning tapers Move the tailstock top casting toward the front of the lathe to machine a taper at the tailstock end Conversely position the tailstock top casting toward the back of the lathe to machine a taper at the spindle end see the illustration in Figure 50 Note The marks on the offset indicator are arbitrary For a precise offset use a dial indicator to check quill movement while adjusting the screws Figure 50 Set screw adjustment in relation to tailstock movement Tools Needed Oty Hex Wrench 6mm 1 Wrench 1 To offset the tailstock 1 Loosen the hex bolts underneath both ends of the tailstock to release the clamping pressure between the top and bottom castings see Figure 51 Offset _ Indicator ea E Zn E Eis 2 I 4 RD a a Adjustment 2 E N gg Cap Screw Em Hex Bolt 1 of 2 Figure 51 Tailstock offset controls South Bend Lathe Co 41 16 Speed Gearhead Lathe 2 Rotate the adjustment cap screws in opposite directions for the desired offset see the illustration in Figure 50 3 Retighten the clamping hex bolts underneath the tailstock to secure the offset
140. ure 75 Setting the spindle speed at 40 RPM South Bend Lathe Co For Machines Mfg Since 3 11 4 Move the spindle speed lever so that the indicator points to the letter A This will select the spindle speed of 40 RPM 1n the top row of the chart Example 2 Spindle Speed of 1250 RPM 1 Make sure the spindle 15 completely stopped and the spindle ON OFF lever is in the OFF middle position 2 Turn the motor switch to the HIGH right position This will make the speeds in the bottom row of the spindle speed chart available 3 Move the spindle range lever so that the indicator points to the lower line see Figure 76 This will make the last four or higher speeds the bottom row available Spindle Speed Lever at C 1250 RPM Spindle Range Lever at the High Range 165 245 375 625 1000 80 120 200 330 490 750 222000 A JBJC DJAJ BjJC D Figure 76 Setting the spindle speed at 1250 RPM 4 Move the spindle speed lever so that the indicator points to the letter C This will select the spindle speed of 1250 RPM 1n the bottom row of the chart South Bend Lathe Co OPERATION 16 Speed Gearhead Lathe Power Feed Both the carriage and cross slide have power feed capability when the carriage is engaged with the feed rod The rate that these components move feed rate is controlled by how the levers are positioned on the headstock and quick change gearbox and the end gear arrangement
141. ure master power switch and circuit breaker are turned ON Verify circuit is rated for machine amp load troubleshoot and repair cause of overload replace weak breaker find repair electrical short Replace fuse determine if overload 1s due to heavy operation ensure power source has high enough voltage and power cord is correctly sized Verify electrical box door chuck guard spindle and brake switches are not engaged Turn the thermal relay cut out dial to increase working amps and push the reset pin Replace if tripped multiple times weak relay Correct motor wiring connections Test all switches and replace as necessary Test for power on all legs and contactor operation Replace unit if faulty Check for broken wires or disconnected corroded connections and repair replace as necessary Test repair replace Inspect keys and set screws Replace or tighten if necessary Tighten fan shim cover or replace items Decrease depth of cut or feed rate Refer to the feeds and speeds charts in Machinery s Handbook or a speeds and feeds calculator on the internet Sharpen or replace the cutting tool 86 South Bend Lathe Co For Machines Mfg Since 3 11 Symptom Entire machine vibrates upon startup and while running Bad surface finish Tapered tool difficult to remove from tailstock quill Cross slide compound or carriage feed has sloppy operation Cross slide compound or car
142. ustomer feedback on our manuals If you have a moment please share your experience using this manual What did you like about it Is there anything you would change to make it better Did it meet your expectations for clarity professionalism and ease of use South Bend Lathe Inc Technical Documentation Manager P O Box 2027 Bellingham WA 98227 Email manuals southbendlathe com Updates For your convenience any updates to this manual will be available to download free of charge through our website at www southbendlathe com Customer Service We stand behind our machines If you have any service questions parts requests or general questions about your purchase feel free to contact us South Bend Lathe Co P O Box 2027 Bellingham WA 98227 Fax 360 676 1075 International Fax 360 734 1639 USA Only Email sales southbendlathe com Bolting to Concrete Floors Table of Contents INTRODUCTION iiio ie beo bra aae 3 TC About This Machine veo tert eor DAR nee tin a o Lubricating E dIR D Adding Coolant o Power Connection tua deine IOS UOS E 2 AI RETE General A Spindle Break In Controls amp
143. ved and then returned to the chuck 4 Install a center in the tailstock 5 Attach a lathe dog to the test stock from Step 2 then mount it between the centers see Figure 53 for an example Figure 53 Example photo of stock mounted between the centers 6 Turn 0 010 off the stock diameter 7 Mount atest or dial indicator so that the plunger is on the tailstock quill South Bend Lathe Co For Machines Mfg Since 3 11 Note If necessary in the following step refer to Offsetting Tailstock on Page 41 for detailed instructions 8 Use calipers to measure both ends of the workpiece If the test stock is thicker at the tailstock end move the tailstock toward the front of the lathe the distance of the amount of taper see Figure 54 Move the tailetock toward the front of the lathe 2 the distance of the taper Looking down from above Figure 54 Adjust tailstock toward the operator If the test stock is thinner at the tailstock end move the tailstock toward the back of the lathe the distance of the amount of taper see Figure 55 Looking down from above Move tailetock toward the back of the lathe 12 the distance of the taper Figure 55 Adjust tailstock away from the operator 9 Repeat Steps 6 8 until the desired accuracy is
144. verage when loosening After loosening you may need to wiggle the chuck key in the camlock to fully disengage the stud Cam line aligned with spindle mark Figure 41 Camlock is fully loosened when the cam line is aligned with the spindle mark 4 Using a dead blow hammer or other soft mallet lightly tap around the outer circumference of the chuck body to loosen it from the spindle 5 Remove the chuck from the spindle using a light rocking motion to carefully slide the studs out of the bores If the chuck does not immediately come off rotate it approximately 60 and tap it again Make sure all the marks on the cams and spindle are in proper alignment for removal South Bend Lathe Co For Machines Mfg Since 3 11 Scroll Chuck Clamping This scroll type chuck has an internal scroll gear that moves all Jaws 1n unison when adjusted with the chuck key This chuck will hold cylindrical parts on center with the axis of spindle rotation and be rotated at high speeds if the workpiece is properly clamped and balanced Never mix jaw types or positions to accommodate an odd shaped workpiece The chuck will spin out of balance and may throw the workpiece Instead use an independent jaw chuck or a faceplate Ineufficient Jaw Clamping Safer Inside Jaw Use Dar oLbook Unstable Workpiece Unsafe Jaw Fosition and Foor Scroll Gear Engagement Foor Grip Sater Outside Jaw Use Shallow Bar S
145. vironment Operating electrically powered equipment in a wet environment may result in electrocution operating near highly flammable materials may result in a fire or explosion Only operate this item a dry location that 1s free from flammable materials Electrical Connection With electically powered equipment improper connections to the power source may result in electrocution or fire Always adhere to all electrical requirements and applicable codes when connecting to the power source Have all work inspected by a qualified electrician to minimize risk Disconnect Power Adjusting or servicing electrically powered equipment while it is connected to the power source greatly increases the risk of injury from accidental startup Always disconnect power BEFORE any service or adjustments including changing blades or other tooling Secure Workpiece Tooling Loose workpieces cutting tools or rotating spindles can become dangerous projectiles 1f not secured or if they hit another object during operation Reduce the risk of this hazard by verifying that all fastening devices are properly secured and items attached to spindles have enough clearance to safely rotate 16 Speed Gearhead Lathe SAFE For Machines Mfg Since 3 11 Entanglement Loose clothing gloves neckties Chuck Keys or Adjusting Tools Tools used to adjust spindles chucks or any moving rotating parts will become dangerous projectiles if lef
146. without overflowing Leadscrew End Bearing Fill Cap Figure 116 Leadscrew end bearing fill cap South Bend Lathe Co For Machines Mfg Since 3 11 V N 7 3 A c A 16 Speed Gearhead Lathe End Gears Grease NLGI 2 Frequency Annually or When Changing The end gears shown in Figure 117 should always have a thin coat of heavy grease to minimize corrosion noise and wear Wipe away excess grease that could be thrown onto the V belts and reduce optimal power transmission from the motor Figure 117 End gears Handling amp Care Make sure to clean and lubricate any gears you install or change Unless you are very careful during handling and storage the coating of grease on the gears will easily pickup dirt or debris which can then spread to the other gears and increase the rate of wear Make sure the end gear cover remains installed whenever possible to keep the gears free of dust or debris from the outside environment South Bend Lathe Co Lubricating 1 2 DISCONNECT LATHE FROM POWER Remove the end gear cover and all the end gears shown in Figure 117 Clean the end gears thoroughly with mineral spirits to remove the old grease Use a small brush if necessary to clean between the teeth Clean the shafts and wipe away any grease splatters in the vicinity and on the inside of the headstock cover With a clean brush apply a thin layer of grease o
147. you see differences between your machine and what 1s shown this section call Technical Support at 360 734 1540 for assistance BEFORE making any changes to the wiring on your machine 1 Shock Hazard It is extremely dangerous to perform electrical or wiring tasks while the machine is connected to the power source Touching electrified parts will result in personal injury including but not limited to severe burns electrocution or death For your own safety disconnect machine from the power source before servicing electrical components or performing any wiring tasks Wire Connections connections must be tight to prevent wires from loosening during machine operation Double check all wires disconnected or connected during any wiring task to ensure tight connections Modifications Using aftermarket parts or modifying the wiring beyond what is shown in the diagram may lead to unpredictable results including serious injury or fire Motor Wiring The motor wiring shown in these diagrams is current at the time of printing but it may not match your machine Always use the wiring diagram inside the motor junction box 5 Circuit Requirements Connecting the machine to an improperly sized circuit will greatly increase the risk of fire To minimize this risk only connect the machine to a power circuit that meets the minimum requirements given in this manual Capacitors Inverters Some capacitors and power inverte

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