User Manual for Wells High Speed Spindle
Contents
1. 5250 MOUNTING TUBE SMOOTH PKG 2 oO S251 SMOOTH TUBE REBUILD KIT G P Pd Attaches S018 S028 S030 Oe 2 S042 and S043 WELLS 29 SPINDLEs to DEMCO B1 oe FOSTER and NIRANIUM alloy grinders Oe S240 MOUNTING TUBE 20 EADED PKG 2 5 EF 45 AV d Pot Si Pd D E MN WELLS DENTAL INC S802 022510 USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 12 WELLS PULLEYS for WELLS HIGH SPEED SPINDLES e DENTAL INC 5860 FLYNN CREEK ROAD xm BOX 106 141 COMPTCHE USA 95427 PHONE 707 937 0521 PULLEY SHIELD 1 800 233 0521 FOR ALL PULLEYS FAX 707 937 2809 EXCEPT S114 amp S134 S114 S116 5118 PULLEY FOR 5012 5013 PULLEY FOR 020 PULLEY FOR 5018 5021 5049 WELLS 2 VEE BELT DEMCO E96 DEMCO B1 DEMCO 2 VEE BELT TICONIUM 130 EE PULS FOR 5029 i o PULLEY FOR S011 S019 S036 FOSTER FLAT BELT WELLS FLAT BELT FOSTER amp PEA LOW SPEED ALUMINUM PULLEY FOSTER FLAT BELT DEMCO FLAT BELT OLDER MODELS S519 134 SMALL HIGH PULLEYS FOR S030 SPEED PULLEY FOSTER 3 VEE BELT S132 PULLEY FOR 028 FOSTER FLAT BELT 136 PULLEY FOR S042 S043 NIRANIUM LARGE LOW SPEED PULLEY 802 022510 WELLS DENTAL INC2. SHIPPING WEIGHT without motor 3 lbs JAM N G ROD BODY WRENCH Figure 1 Spindle features 802 022510 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 4 4 0 INSTALLATION Please refer to the separate technical bulletin for the particular application or the instructions supplied by the manufacturer of the finishing machine or alloy grinder Call Wells Dental Inc at 1 800 233 0521 or 707 937 0521 for assistance 5 0 OPERATION FAILURE TO COMPLY WITH INSTRUCTIONS COULD RESULT IN A WARNING READ ALL INSTRUCTIONS BEFORE OPERATING CA CAUTION Always wear f 7 industrial certified safety glasses 8 for all work and maintenance te di 5 2 1 5 2 2 5 2 3 5 2 4 5 2 5 S802 022510 SEVERE PERSONAL INJURY AND OR PROPERTY DAMAGE CAUTION High Speed Spindles are driven by a belt that increases the speed by three to seven times the motor speed depending upon the pulley sizes Most Spindles run at 10 000 to 24 000 RPM Because of this high speed it is extremely important to take the following precautions HIGH SPEED PRECAUTIONS Use ONLY tools that are rated above the speed of the Spindle Always consult the tool manufacturer s literature for the maximum operating speed of the tool For example a thin parting disk with a diameter of 1 1 2 rated for 25 000 RPM is safe to use on either fast or slow speed Heavier or larger diam
3. ve work and maintenance In addition always put the clear safety shield between the Spindle and your face for protection in case of tool breakage 1 5 SECURE LOOSE ARTICLES Fasten long hair Do not wear loose clothing necktie or jewelry They can get caught in rotating parts 1 6 USE PARTICLE MASK when there is dust or particles in the air 1 7 ALWAYS KEEP A TOOL IN THE COLLET Never operate the unit without a tool 1 8 DO NOT EXCEED THE MAXIMUM OPERATING SPEED OF THE TOOL Use ONLY tools parting disks or polishing wheels that are rated above the speed of your Spindle Insufficiently rated tools may break apart bend or come loose causing serious personal injury 1 9 MAINTAIN THE WHEEL OR TOOL Never operate with a damaged or bent tool It could break apart or come loose causing serious personal injury 1 10 CHECK TOOL IS SECURE Insert the tool shank into the collet to the MAXIMUM depth that will allow free rotation of the tool An extended tool is likely to break or bend causing serious personal injury Always check that the tool is securely held in the collet 1 11 KEEP CHILDREN AWAY All visitors should be kept a safe distance from the work area Do not run the unit unattended 1 12 MAINTAIN THE UNIT Inspect periodically for damaged or worn parts Follow the instructions for maintenance Don t use if the power cord motor switch belt or other parts are in poor condition Don t use if the unit has been dropped damaged or exposed
4. ER 6 7 4 Worn out spindle bearings will usually cause a high pitched noise Also the spindle housing the large main body of the Spindle may get excessively hot with bad bearings Bearing replacement requires factory service For further maintenance or repairs send the Spindle to WELLS DENTAL INC for factory service 7 0 FACTORY SERVICE Our service policy assures prompt estimates and repairs for all major WELLS products We process estimates in one working day and most repairs within two days plus shipping time When we receive your equipment it is thoroughly checked to determine the appropriate service level Minimum repairs are suggested when possible WELLS equipment can always be rebuilt to factory specifications with a fully reinstated warranty at a significant savings over a new purchase You can exchange for already rebuilt equipment or we can loan you equipment while yours is being serviced to keep you in production 802 022510 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 9 7 1 BEFORE YOU SEND YOUR EQUIPMENT 7 1 1 Consult the technical bulletin or user s manual that came with your equipment Problems are often solved by simple maintenance procedures 7 1 2 Call our toll free number and ask for service assistance Our experience may save you extra work and delay 7 1 3 If the equipment needs service beyond your means ship it to us and we will be happy to provide an estimate if requested before co
5. OOL Any tool such as a burr or stone may be changed while the motor is running From the operating position move the handle clockwise to the open collet position 9 00 o clock See Figure 2 Remove the tool Insert a selected tool that is rated for the speed of the spindle Move the handle to approximately 7 00 o clock to close the collet DANGER REMOVE YOUR HAND from the tool before moving the handle past 7 00 o clock Holding a tool when the clutch engages could cause serious personal injury Ease the handle counterclockwise to the operating position Do not let the handle snap shut CHANGING POINTS STONES AND PARTING DISKS By applying the brake points stones and parting disks may be loosened or tightened when the motor is stopped only Turn the motor off From the operating position move the handle clockwise to about 7 30 o clock where the resistance of the brake is felt This disengages the clutch locks the shaft and keeps the collet closed Hold the handle in this position to loosen or tighten points stones or parting disks WELLS DENTAL INC PAGE 5 USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 6 6 0 MAINTENANCE CAUTION The bearings in the WELLS High Speed Spindle are permanently lubricated with special compounds If anything enters the bearings they will be damaged KEEP OIL SOLVENT AND COMPRESSED AIR AWAY from the WELLS High Speed Spindle 6 NO OIL NO SOLVENT NO AIR CAUTION There are no user serv
6. PINDLE PULLEY REPLACEMENT Pulleys with vee grooves should be replaced when the vees are worn to a sharp edge A worn pulley can drastically reduce belt life Pulleys for flat belts should have a noticeable crown to keep the belt centered If the crown has been worn flat the belt will have a tendency to wander off the pulleys 6 6 1 Toreplace the spindle pulley disconnect the power cord and remove the belt 6 6 2 Insert a 1 8 hex wrench into the end of the spindle shaft and loosen the pulley jam nut with a 1 2 box wrench To remove a low speed pulley that acts as the nut wrap the pulley with a rag or sheet of rubber and unscrew the pulley 6 6 3 Install the new pulley tighten the pulley jam nut and install the belt 6 6 4 Adjust the belt tension The belt should have about 3 8 to 1 2 deflection when lightly pressed halfway between the pulleys 6 6 5 Connect the power cord 6 7 EXCESSIVE NOISE Noise can be a symptom of various problems The most common are listed below 6 7 1 Check that the belt has the correct tension See section 6 5 1 6 7 2 Make sure the mounting system is properly adjusted Consult the instructions for your particular finishing machine or alloy grinder Try tightening or loosening the mounting screws a little 6 7 3 stop that is too long will cause the collet to slip which will make a squealing noise It may also cause the brake to drag which can squeak See section 6 3 FITTING A STOP TO ADJUST THE COLLET DIAMET
7. WELLS NENNEN DENTAL 5860 FLYNN CREEK ROAD READ ALL INSTRUCTIONS P O BOX 106 BEFORE PROCEEDING COMPTCHE CALIFORNIA U S A 95427 SAVE THIS FOR FUTURE REFERENCE THIS PRODUCT IS FOR PROFESSIONAL LABORATORY USE ONLY USER S MANUAL WELLS HIGH SPEED SPINDLE SALES CUSTOMER SERVICE TECHNICAL ASSISTANCE CALL TOLL FREE 1 800 233 0521 PHONE 707 937 0521 FAX 707 937 2809 MONDAY FRIDAY 8 00 a m 4 30 p m P S T DENTAL EQUIPMENT FOR TECHNICIANS WHO VALUE TIME AND QUALITY USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 2 1 0 SAFETY INSTRUCTIONS WARNING WHEN USING ELECTRIC TOOLS BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE THE RISK OF FIRE ELECTRIC SHOCK AND PERSONAL INJURY INCLUDING THE FOLLOWING ITEMS 1 1 GROUND THE MOTOR The motor must be grounded while in use to protect the user from electric shock Plug into a three hole grounded receptacle If an adapter is used to accommodate a two hole receptacle the grounding lug must be connected to a known ground Never remove the third prong If in doubt have a licensed electrician check the receptacle for PROPER GROUNDING and POLARITY 1 2 HANDLE WITH DRY HANDS Never handle the plug power cord motor or Spindle with wet hands DISCONNECT THE POWER CORD Before servicing unplug the power cord to prevent electric shock or unintentional starting CA 14 ALWAYS USE SAFETY GLASSES Wear industrial certified safety glasses for ALL
8. an out any packed dirt with the drill end of the stop removing tool provided in the accessory kit see figure 3 or use a 41 drill Remove the stop tube with the threaded end of the stop removing tool or use a size 1 screw extractor Easyout 6 2 7 Wash the collet and stop tube in solvent Solvent may be used on these parts ONLY when removed from the collet body Dry the collet and stop tube thoroughly 6 2 8 Clean the inside of the collet body so the collet will seat against the stop properly Clean the threads using the tube brush provided in the accessory kit Rotate the brush into the threads a few times Use a pipe cleaner or Q tip to clean out all the debris in the bottom of the hole Do not use solvent here 6 2 9 Puta THIN film of grease or Vaseline on the outside of the collet including the threads DO NOT use oil 6 2 10 Insert the stop tube and collet then tighten with the collet wrench 6 2 11 Insert a tool into the collet and put the handle into the operating position 6 2 12 Putthe collet wrench in the end of the handle and tighten the set screw Connect the power cord CAUTION Do not run the Spindle without a collet 802 022510 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE WRENCH LOCATION COLLET WRENCH PAGE 7 TUBE BRUSH STOP REMOVING TOOL STOP TUBE 1 OF 6 SIZES COLLET COLLET WRENCH 3 32 SHIPPING ROD Figure 3 6 3 FITTING A STOP TO ADJUST THE COLLET DIAMETER When the c
9. d lubricated periodically it may get stuck in the spindle shaft The collet may turn but not unscrew 6 4 4 Turn off the motor and disconnect the power cord 6 4 Move the handle to the open collet position 9 00 o clock Remove the tool 6 4 3 Insert the collet wrench Tap the end of the collet wrench LIGHTLY while turning the collet wrench counterclockwise See Figure 4 6 44 f the collet cannot be removed by this method the Spindle must be sent in for factory service 802 022510 LIGHTLY WHILE TURNING Figure 4 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 8 6 5 BELT MAINTENANCE The life of spindle bearings motor bearings and pulleys are greatly affected by the tension of the belt If the tension is too great stress is put on the bearings that will considerably shorten their life If the tension is too little the belt will slip wearing both the belt and pulleys or will cause noise and vibration 6 5 1 Check the tension of the belt regularly The belt should have about 3 8 to 1 2 deflection when lightly pressed halfway between the pulleys The belt should be tensioned as loose as possible but tight enough to prevent slipping and excess vibration 6 5 2 Belts become impregnated with grinding dust and may be replaced periodically to extend pulley life The frequency depends on the type of dust and the severity of service If a belt has cracks or is frayed it should be replaced 6 6 S
10. eter tools than this however are probably rated for lower speeds and are extremely dangerous if operated over their rated speed Make sure the tool is perfectly straight A slightly bent tool will bend sharply break or fly out of the collet Insert the tool shank into the collet to the maximum depth that will allow free rotation of the tool An over extended tool can bend sharply break or fly out of the collet Larger diameter and heavier tools especially must be held very closely to the collet Do not use excessive force on the tool GENERAL OPERATION CAUTION Always put a clear safety shield between the 9 3 Spindle and your face for Ene protection in case of tool 2 A breakage BRAKE 7 TI 5 Always keep a tool in the collet The POSITION 9 Spindle be damaged if the collet is CLUTCH POSITION closed without a tool ENGAGES Work is done with the handle in the operating position at approximately 5 00 Figure 2 o clock See Figure 2 The clutch disengages when the handle is moved clockwise to approximately 6 00 o clock straight down The brake is applied when the handle is moved to approximately 7 30 o clock The collet opens when the handle is moved to 9 00 o clock straight back WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE 5 3 5 3 1 5 3 2 5 3 3 5 3 4 5 3 5 5 3 6 5 4 5 4 1 5 4 2 5 4 3 802 022510 CHANGING A T
11. iceable parts inside the Spindle except as described below DO NOT DISASSEMBLE the Spindle 6 1 RUNNING HOT A WELLS High Speed Spindle may run hot for several reasons 6 1 1 A new or rebuilt Spindle will run hot when first put into operation until the bearings are broken in This condition may last several days depending upon the amount of use 6 1 2 A worn or loose collet or a stop that is too long may cause tools to slip The brake may drag causing the collet to spin inside the collet body The overheating will be noticed at the collet and front of the collet body If the tools slips follow the procedures in section 6 3 FITTING A STOP TO ADJUST THE COLLET DIAMETER 6 2 CLEANING THE COLLET MONTHLY To prevent the collet from sticking and slipping periodic cleaning and lubrication is essential Neglected collets can get frozen into the shaft requiring factory service 6 2 1 Turn off the motor and disconnect the power cord 6 2 2 Use a 3 32 hex wrench to loosen the set screw that holds the handle and remove the collet wrench See Figure 3 6 2 3 Insert a 3 32 rod into the hole in the collet wrench to make a tee handle 6 2 4 Move the handle to the open collet position 9 00 o clock Remove the tool 6 2 5 Insert the collet wrench into the collet and turn counterclockwise to unscrew If the collet turns but will not unscrew see section 6 4 REMOVING A STUCK COLLET 6 2 6 remove the small brass stop tube behind the collet first cle
12. mmencing work NOTES 802 022510 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE WELLS sy DENTAL INC 5860 FLYNN CREEK ROAD P O BOX 106 COMPTCHE CA USA 95427 PHONE 707 937 0521 1 800 233 0521 FAX 707 937 2809 PAGE 10 PARTS LIST for WELLS HIGH SPEED SPINDLES REF PART NO DESCRIPTION 1 S551 PULLEY JAM NUT 2 536 SCREW SET 10 32 X 3 16 3 S155 COLLET WRENCH 4 JAW S159 COLLET WRENCH 1 16 S161 COLLET WRENCH 3MM amp 1 8 4 S545 HANDLE 5 S546 GRIP 2 3 8 4 amp 5 S112 HANDLE KIT 6 S165 TUBE BRUSH 3 16 Nf 7 159 HEX WRENCH 1 8 8 151 HEX WRENCH 3 32 9 S152 STOP TUBES SET OF 6 0 S153 STOP REMOVING TOOL 6 10 250 ACCESSORY KIT 1 S142 STOP TUBE 245 BLUE 2 S143 STOP TUBE 255 YELLOW 3 S144 STOP TUBE 265 ORANGE 4 S146 STOP TUBE 275 RED 5 S148 STOP TUBE 285 GREEN 6 S150 STOP TUBE 295 BLACK 7 S106 COLLET 3 32 S105 COLLET 1 16 S108 COLLET 3MM S110 COLLET 1 8 8 138 SHIPPING ROD 3 32 802 022510 All models WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 11 WELLS MOUNTING HARDWARE for WELLS HIGH SPEED SPINDLES e DENTAL INC 5860 doua ROAD BOX COMPTCHE CA USA 95427 PHONE 797 LC 0521 5220 SPINDLE MOUNTING 35 0521 FAX Gon 37 2809 P 49 Q Attaches S013 WELLS SPINDLE to 6200 C201 0011 0015 UO20 U710 U711 and U712 WELLS GOLD CHROME finishing machines
13. ollet wears tools may slip The brake may drag causing the collet to spin inside the collet body A shorter stop must be installed to compensate for the wear The shorter stop will allow the collet to thread further into the collet body so it grips more tightly A set of 6 stops of different lengths a stop removing tool and a tube brush are included with the accessory kit 6 3 1 Follow steps 6 2 1 through 6 2 10 for CLEANING THE COLLET 6 3 2 sure that the handle is in the open collet position 9 00 o clock straight back Insert a tool with the correct size shaft into the collet If it is loose remove the collet and replace the stop tube with the next shorter size Check the fit again If it is still loose install a shorter stop tube If it is too tight install the next longer size Install the shortest stop tube that will allow the tool to just slip into the collet 6 3 8 With a tool in the collet put the handle into the operating position The collet should protrude a little from the face of the collet body If it is flush or recessed the collet is worn out and must be replaced 6 3 4 Put the collet wrench in the end of the handle and tighten the set screw Connect the power cord 6 3 5 If the collet still slips or overheats replace the collet Follow the procedure above for fitting a stop when a new oollet is installed 6 4 REMOVING A STUCK COLLET If the Spindle is run without a tool in the collet or the collet is not cleaned an
14. to water Have a qualified service person inspect and replace parts when necessary 1 13 FOR LABORATORY USE ONLY The WELLS High Speed Spindle is intended for use by trained professional laboratory personnel 802 022510 WELLS DENTAL INC USER S MANUAL for WELLS HIGH SPEED SPINDLE PAGE 3 2 0 PRODUCT DESCRIPTION The WELLS High Speed Spindle is designed for heavy duty laboratory service quiet operation and low maintenance Tool changes are quick and safe A quarter turn of the handle disengages the clutch stops the shaft and opens the collet while the motor is running There are several different WELLS High Speed Spindles manufactured to fit various makes and models of finishing machines and alloy grinders This manual covers the operation and maintenance of all WELLS Spindles S011 S012 5013 5018 S019 S020 5021 S028 5029 S030 5036 and S042 New spindles include the S250 ACCESSORY KIT which consists of 151 HEX WRENCH 3 32 159 HEX WRENCH 1 8 152 STOP TUBES SET OF 6 5153 STOP REMOVING TOOL 165 TUBE BRUSH 3 16 The ACCESSORY KIT is not included with serviced or exchanged spindles 3 0 SPECIFICATIONS COLLET SIZES 3 32 standard 1 16 1 8 or 3mm TYPICAL OPERATING SPEED 10 000 to 24 000 RPM MAXIMUM SPEED veces eas nina ea terne 24 000 RPM UNIT DIMENSIONS without motor approx 1 5 x 3 x 6 5 WEIGHT without motor nennen 1 9 lbs
Download Pdf Manuals
Related Search