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Service Reference Manual - NATIONWIDE PARTS COMPANY

1. Worldwide Headquarters 7400 Caldwell Ave ABDICK Niles 5 60714 s 800 422 3616 847 779 1900 847 647 6940 Fax www abdick com 06 09 97
2. SET SCREWS SENSORPLATE ASSEMBLY 2 SEQUENCECAM ADJUSTABLE TRUCK D DETENT LEVER INK POSITION SEQUENCE CAM NEUTRALPOSITION SEQUENCE CAM NIGHT LATCH POSITION 5 SET SCREWS SEQUENCECAM SENSORPLATE AND PC BOARD ASSEMBLY HALL EFFECT INKSENSOR SENSORMAGNET CONTROLLINK ECCENTRIC DISC CONTROL LINK INK POSITION CONTROL LINK IMAGE POSITION DETENTLEVER SEQUENCE CAM FEED POSITION RETAININGNUT DETENT LEVER ALTERNATE CYCLE ORIMAGE POSITION ACTUATOR 5 16 9970 9970D Service Reference Manual Service Reference Manual SINGLE LEVER CONTROL DETENT ECCENTRIC DISC AND HALL EFFECT PC BOARD The Detent Truck must properly locate in the Sequence Cam detents for correct Form Roller action When the Operation Control Lever moves from INKto IMAGE the Control Link must lift into the overtravel slot gt D gt 10 11 Move the Operation Control Lever to the INK position Turn the Form Roller Levers to the ON position Loosen the retaining nut on the Detent Lever Adjustable Truck Move the Operation Control Lever until the Form Roller Separator Cams are free of and the Cam Flats are parallel to the Form Roller Blocks Holding the Operation Control Lever in the position stated above adjust the Detent Lever Truck to fit properly in the INK position of the Sequence Cam Tighten the nut Figure 5 11 Move the Operation Control Lever to the NIGHT LATCH position and check the F
3. 6 3 SECTION 7 ELECTRICAL SCHEMATIC DIAGRAMS Hee ERR 7 1 9970 9970D Service Reference Manual Hl Service Reference Manual This page is intentionally blank IV 9970 9970D Service Reference Manual Service Reference Manual SECTION 1 INTRODUCTION ASDICK 9970 9970D Service Reference Manual Service Reference Manual INTRODUCTION This Service Reference Manual addresses the A B Dick Model 9970 9970D Offset Duplicators and contains the latest information available before going to press This manual is intended as a reference for service personnel familiar with the function operation and adjustment of A B Dick Offset Equipment HOW TO USE THIS MANUAL The manual is divided into sections The sections are formally numbered One Two Three etc as indicated in the Table of Contents The page numbers within each section are proceeded by the section number and a hyphen FOR EXAMPLE Page 1 of Section One is designated Page 1 1 Page 32 of Section Three is designated Page 3 32 SAFETY PRECAUTIONS This manualis intended for use by trained and qualified Technical Representatives Persons notfamiliar with this equipment should not attempt any adjustments bodily injury or equipment damage could result Always employ safe working practices when servicing this equipment Don t wear any jewelry Don t wear loose fitting clothes Wear safety gl
4. Loosen the screws 4 in the Feed Forwarding Link 5 Use the Sucker Foot Adjusting Gauge P N 191541 as shown A Adjust the plate 6 so the front edge of the Suction Tubes 3 are 15 16 from the apron 7 Tighten the screws 4 Loosen the screws 8 in the Feed Raise Link 9 Use the gauge P N 191541 as shown in B with the bottom of the tool at the bottom of the slot Holding it level adjust the plate 10 so the bottom of the Suction Tubes 3 are 11 16 from the bottom of the slot in the front apron 10 Tighten the screws 8 5 26 9970 9970D Service Reference Manual Service Reference Manual FEED RAISING AND SUCTION FOOT SHAFTS The Feed Raising and Suction Foot Shafts must operate freely without end play Locate the Feed Raising Shaft 1 on the non operator side of the machine Figure 5 22 2 Loosen the screws 2 Adjust the collar to eliminate the end play of the shaft 1 Tighten the screws 2 3 Check that the shaft 1 does not bind Locate the Suction Foot Shaft 3 on the non operator side of the machine 5 Loosen the screws 4 Adjust the collar to eliminate the end play of the shaft 3 Tighten the screws 4 6 Check that the shaft 3 does not bind im FIGURE 5 22 9970 9970D Service Reference Manual 5 27 Service Reference Manual UPPER FORWARDING ROLLER The Forwarding Roller must forward the paper to the grippers with the proper buckle then lift to free the paper C
5. 4 Springs pivot the lever 5 and Lever Assembly 6 in the opposite direction opening the grippers 1 and releasing the lead edge of the paper FIGURE 2 16 9970 9970D Service Reference Manual 2 19 Service Reference Manual IMPRESSION CYLINDER LATCHING PURPOSE Lifts and holds the Impression Cylinder against the Blanket Cylinder FUNCTION Operation of the Unlatched Impression Cylinder As cam 1 rotates it moves the Power Lever 2 which pivots at point 3 The power lever pushes truck 4 on the Impression Cylinder Lever 5 which moves back and forth when not latched The Impression Cylinder Shaft 6 is eccentric As lever 5 moves back and forth the Impression Cylinder raises and lowers The machine is timed so the Impression Cylinder is raised against the Blanket Cylinder only when the cylinder openings face each other Figure 2 17 Impression Cylinder Latching When paper is fed the Impression Cylinder Latch Solenoid 7 lifts lever 8 which in turn lowers the Latch Lever 9 The Latch Lever 9 engages the Impression Cylinder Lever 5 as it moves to the left preventing it from moving back towards the right The eccentric Impression Cylinder Shaft 6 is kept in the position which holds the Impression Cylinder against the Blanket Cylinder where it will stay as long as the solenoid 7 is kept activated 9 FIGURE 2 17 2 20 9970 9970D Service Reference Manual Service Reference Manual
6. 4 10 9970 9970D Service Reference Manual Service Reference Manual Installation Install the Blanket Cylinder in the reverse order of removal Note the following during installation Set the Raise Lower at 0 2 Wheninstalling the cam the double holes in the operator and non operator side cams should line up The pilot screw should be installed once the holes are lined up Figure 4 11 3 Refer to the timing adjustment to time the Blanket Cylinder FIGURE 4 11 9970 9970D Service Reference Manual 4 11 Service Reference Manual IMPRESSION CYLINDER Removal NOTE The Impression Cylinder should be protected with a Cleanup Mat 1 Remove the Auxiliary Form Roll Assembly keyboard and side covers 2 Remove the Chain Delivery Unit as described in next Section Chain Delivery 3 Remove the gear A and stud Figure 4 12 4 Remove the compound gear B do not remove both pins remove only the pin C shown FIGURE 4 12 4 12 9970 9970D Service Reference Manual Service Reference Manual Remove the Master Cylinder Link C Figure 4 13 Remove the Counter Operation Lever D Remove the necessary linkage E to gain access to the Impression Cylinder Support Arm Remove the Impression Cylinder Lever F located on the non operator side Figure 4 14 Remove the operator and non operator side Support Arms G Figure 4 13 FIGURE 4 13 FIGURE 4 14 9970 9970D Service Referenc
7. E to return to the ready state Recordthe cumulative total Push the Stop Key then 2 The display shall read TOTSHT XXXXXX Record this value then push to return to the ready state 3 Set the sheet count to 50 4 Push the Drive Key to start the machine The display shall read COUNT 50 5 Push the Feed Key The machine shall feed and count down 6 When the count reaches 30 push the Sheet Count Key Enter a value of 75 Push to enter the value 7 The machine shall calculate the number of sheets left as equal to 75 minus the number of sheets already printed The display shall read COUNT XXXX with XXXX being the number of sheets left 8 The machine will count down to 0 Paper feed will turn off and the display shall read COUNT 50 9 Push the Stop Key to stop the machine The display shall read READY 10 Push the Stop Key followed by 1 The display shall read DAY SHT 75 Push to return to the ready state 11 Push the Stop Key followed by 2 The display shall read TOTSHT XXXX XXXX shall be 75 plus the total recorded at the beginning of the test Push E to return to the ready state Guard Bypass Service Switch Test 1 Pull the Service Switch Shaft out This shall engage the switch which shunts all guard switches 2 With the Drive Motor on lift all the guards one after another No LED s shall come on No Guard Reset Light The motor shall not stop
8. Position the Operator Side Rear Guide 4 two inches fro the back edge of the paper and compress spring approximately 1 8 Bring the Back Stop 5 snug against the paper do not bind The Paper Weight 6 must rest on the paper AN CAUTION Never position the bottom edge of the Guide Plate beyond the Paper Guide as the paper will bind under the Guide Plate and jam the Paper Table MICRO LATERAL GUIDE FIGURE 5 18 PLATE TOP VIEM 9970 9970D Service Reference Manual 5 23 Service Reference Manual FEED TABLE REGULATION The Spring Guides must be parallel with the Front Mounting Bar The Feed Table must stop elevating when the surface of the Feed Table is 7 32 1 16 from the bottom edge of the operator side guide Figure 5 19 Fon gt Loosen four screws 1 securing the Front Mounting Place alignment bar on the Feed Table on the Operator Side of the machine Tighten the Side Guide Knob 2 Raise the Feed Table 3 by hand until the alignment bar comes in contact with the Side Guides At this point the Side Guide should be parallel to the Front Mounting Bar Tighten the four screws 1 that was loosen in Step 1 Lower the Feed Table 3 Adjust the Trip Bracket 4 on the Operator Side of the Feed Table 3 so that when the Feed Table is raised by means of turning the handwheel it will automatically stop elevating when the Feed Table is 7 32 1 16 below the Paper Guides Adjust the bracket
9. The Sprocket Shaft Assembly will remain in the machine Remove the 1 2 bolt from the end of the Sprocket Shaft on the non operator side Remove the taper pin on the Sprocket Gear non operator side and slide the gear toward the operator side Take care not to damage the Impression Cylinder Remove the three nuts and bolts that secure the Sprocket Shaft Bearing Housing and remove the housing Move the Sprocket Shaft towards the non operator side until the shaft clears the operator side then remove the Sprocket Shaft Assembly from between the machine side frames FIGURE 4 18 9970 9970D Service Reference Manual 4 17 Service Reference Manual Installation Install the Chain Delivery in the reverse order of removal Note the following during installation 1 The machine must be correctly timed during the assembly procedure 2 The taper pin on the non operator side Sprocket Gear must be seated securely 3 The Back Stop Assembly has cutouts J which must go over the machine Tie Bar Figure 4 19 FIGURE 4 19 4 18 9970 9970D Service Reference Manual Service Reference Manual SECTION 5 ADJUSTMENTS ASDICK 9970 9970D Service Reference Manual 5 1 Service Reference Manual INTRODUCTION TO ADJUSTMENTS WARNING THE MACHINE MUST BE UNPLUGGED FROM ITS RECEPTACLE WHEN MAKING ADJUSTMENTS AN ADJUSTMENT REQUIRES THE MACHINE TO BE TURNED ON PLUG IT IN AND IMMEDIATELY UNPLUG IT WHEN THE ADJUS
10. to AUTO position Loosen the two locking screws 6 on both sides of the machine on the Lockout Arms 7 Figure 5 50 Move the Aquamatic Control Lever to obtain a gap of 1 16 1 6mm between the Aquamatic Ductor 8 and the Aquamatic Oscillator 9 Adjust the Lockout Arms 7 to butt against the ears of the Ductor Roller Levers 10 Tighten the locking screws 6 on both sides Loosen the set screw 11 in the eccentric collar 12 on the Form Roller Separating Shaft and set the high of the eccentric in the upper range and tighten screw Move the Operation Control Lever 1 back and forth through the INK and NEUTRAL positions while turning the Handwheel and observing the release and lockout action of the Aquamatic Ductor Lockout Test the machine under power also to be sure the Lockout Arms will lockout and release under all operating conditions Rotate the Eccentric Collar 12 as necessary to achieve proper lockout and release and or refine adjustment to lockout Check to see if the Lockout Arms raise and move out of engagement with the ears of the Ductor Roller Levers 10 on both sides of the machine when the Operation Control Lever is moved from NEUTRAL to INK position NOTE When the Operation Control Lever is moved from INK to NEUTRAL position the Lockout Arms must drop and be in position to engage the ears of the Ductor Roller Levers keeping the Ductor Roller out of contact with the Aquamatic Oscillator 5 60 9970 9970D Servi
11. 9 Remove the Master Cylinder Latch J Figure 4 4 10 Remove the Master Cylinder Lever 11 Remove the Master Cylinder Power Lever L FIGURE 4 3 FIGURE 4 4 4 6 9970 9970D Service Reference Manual Service Reference Manual 12 Loosen the set screws and remove the collar M on the non operator side Figure 4 5 13 Remove the Support Arm Assemblies N one from each side Figure 4 4 14 Remove the Master Cylinder Shaft a Remove the Master Cylinder Shaft Bearings 0 one from each side Figure 4 5 b Install the Cylinder Adjusting Tool P N 191551 Loosen the collar P located inside the Cylinder Remove the two set screws completely d Pull out and remove the Master Cylinder Shaft Q from the operator side NOTE If loose replace the Tru Arc located on the Shaft 15 Remove the Master Cylinder R Installation Install the Master Cylinder in the reverse order of removal Note the following during installation 1 The beveled end of the collar M must face the operator side of the machine and the set screws must bottom in the holes in the shaft 2 Refer to Section 5 pages titled Machine Timing Final Master and Impression Cylinder Support Arms and Master Cylinder Clamp to time the Master Cylinder and to perform the Master Cylinder Parallel and Pressure Adjustments 3 Refer to Section 5 Single Lever Control Detent Eccentric Discs and Hall Effect PC Board to adjust the Operat
12. Chain Gripper turn the sprocket counterclockwise NOTE Make very small movements of the Sprockets a Tighten the three sprocket mounting screws b Test all three gripper bars after each adjustment Screws d Test all three Gripper Bars after each adjustment FIGURE 5 38 5 48 9970 9970D Service Reference Manual Service Reference Manual Control Lever The Receding Stacker must descend with the Control Lever in Position C Figure 5 39 Move the Control Lever 1 to position 2 Turn the handwheel until the pawl 2 is in its highest position Position 3 Move the Control Lever 1 until the edge 3 passes through the base point 4 of the first ratchet tooth behind the pawl 2 Position 4 Loosen the screws 7 Hold the Control Lever 1 in this position and adjust the Control Ratchet 5 for pin 6 to fit into the second tooth Tighten the screws 7 1 POSITION A Bs 1st TOOTH TOOTH POSITION Le POSITION POSITION FIGURE 5 39 9970 9970D Service Reference Manual 5 49 Service Reference Manual Paper Stop The Paper Stop Assembly must be 90 to the horizontal surface of the dolly with the Paper Stop Locking Knob tightened 1 With the dolly inthe raised position and the Paper Stop Assembly in close proximity to the dolly place a square on the horizontal surface of the dolly 1 Check to ensure that the Stop Assembly is at
13. Guards Paper Detect Chain Delivery Full Speed UP Switch Speed DOWN Switch and Operation Control Handle Neutral Ink and Image positions Detection of an active state shall read on the display 2 Activate the sensors one at a time to ensure they are working 3 Depression of the C key will exit the Diagnostics Program and return the machine to the READ Y state Depression of the E key will return testing to the Membrane Switch Panel Test 3 12 9970 9970D Service Reference Manual Service Reference Manual SECTION 4 DISASSEMBLY ASSEMBLY ASDICK 9970 9970D Service Reference Manual 4 1 Service Reference Manual GENERAL DISASSEMBLY REASSEMBLY INSTRUCTIONS This section provides you with instructions on how to remove or disassemble various parts of the duplicator Many technicians find it helpful to refer to the Parts Catalog using it as a guide for taking apart and reassembling machines to get at parts and assemblies not discussed in this chapter Follow these guidelines when disassembling or reassembling a machine 1 Do not attempt to disassemble too many parts of the machine the first time you disassemble a machine If possible use a progressive disassembly plan removing and replacing more parts each time 2 Before removing any part note where any springs or electrical connections are attached Leave one end of a spring attached when possible 3 When possible set aside the parts in corre
14. On each plate a Loosen lock screw 2 b With the plate 1 flat against the frame tighten locknut 3 until snug Loosen locknut 3 just enough to allow adjusting screw 4 to turn 360 freely d Tighten lock screw 2 NOTE If the Plates 1 are not adjusted properly the Adjusting Screws 2 will bind and the Form Roller Levers will bind FIGURE 5 30 5 38 9970 9970D Service Reference Manual Service Reference Manual 6 Take an upper and a lower bead line a Gently turn each Form Roller Knob ON then OFF b Check the ink bead lines on the master for the following widths Upper Form Roller 1 8 to 5 32 3 2mm to 4 0mm Lower Form Roller 5 32 to 3 16 4 0mm to 4 8mm The line width should be uniform within 1 64 D40mm 7 If necessary adjust the roller pressure to attain the proper bead line widths a Loosen lock screw 2 b Hold the adjusting screw 4 with a screwdriver to keep it from turning and loosen locknut 3 c Adjust screw 4 according to the chart to INCREASE the bead line width Adjust it opposite to the chart to DECREASE the bead line width d Tighten locknut 3 while holding the adjusting screw 4 with a screwdriver e Tighten lock screw 2 TO INCREASE FORM ROLLER PRESSURE Upper Form Roller Turn top of screw 4 towards feed end of machine Operator side clockwise Non operator side counterclockwise Lower Form Roller Turn top of screw 4 towards deli
15. The Paper Crank 1 is turned clockwise turning gear 12 Gear 12 turns gear 15 Bevel Gear 16 Worm Gear 17 gear 18 and shaft 2 Shaft 2 turns sprockets 3 and chains 4 operator and non operator sides The chains 4 lift the Feed Table 5 Figure 2 19 Automatic Table Release Lever 6 is up The Paper Height Regulators 7 move up and down sensing for paper When the feeding level of the paper stack is lowered the Paper Height Regulators 7 move down When the Paper Height Regulators 7 move down the sliding link 23 moves to the right Pin 24 attached to the backside of link 23 contacts the Linkage Plate 8 causing latch 9 to release lever 10 Pawl 11 connected to lever 10 turns gear 12 by means of a ratchet located behind gear 12 The Power Lever 22 moves lever 10 The Power Lever 22 is driven by the Crank Arm 13 and link 14 The ratcheting of gear 12 turns gear 15 Bevel Gear 16 Worm Gear 17 gear 18 and shaft 2 Shaft 2 turns sprockets 3 and chains 4 operator and non operator sides Chains 4 lift the Feed Table 5 The table 5 is lifted until the downward action of the Paper Height Regulators 7 is restricted When the regulators 7 are restricted link 23 is not allowed to travel fully to the right Pin 24 attached to link 23 does not contact the Linkage Plate 8 The Linkage Plate 8 allows latch 9 to hold lever 10 stopping the ratch
16. and Timing Check The springs must provide proper tension to the Drive Chains The joggers must be properly timed to prevent trapping the sheet before the sheet is released by the Chain Grippers NOTE Do not operate the Chain Delivery under power until the following steps have been checked and if necessary the adjustments are made 1 Checkthe tension of the Compression Springs operator and non operator sides The tension is correct if the springs are compressed to 1 1 4 32mm Figure 5 36 If necessary adjust by performing the following steps a Loosen nut 1 b Turn the adjusting screw 2 so the springs are compressed to 1 1 4 32mm c Tighten nut 1 against block 3 FIGURE 5 36 5 46 9970 9970D Service Reference Manual Service Reference Manual 2 Checkthe Chain Delivery timing a Turn the handwheel until all timing marks on the machine are aligned b Ensure that the timing holes in the sprocket and gear are approximately in the position shown 4 and are in line with each other within one gear tooth space Figure 5 37 3 Ifthe timing does not meet the above requirements adjust by performing the following steps a Remove the Gripper Bars and the operator side chain b With all timing marks aligned the Gripper Bar Attachment Links on the chains must be on the teeth in the Main Drive Sprockets that have timing marks c Settheldler Sprocket 5 sothetiming hole in the sprocketis in position within one
17. lever 8 pulling plate 1 to the right When the Single Lever Control is moved from NEUTRAL to INK lever 13 is pivoted past the vertical position needed to hold up lever 7 The levers 7 8 are once again allowed to move plate 1 left and right as the Master Cylinder Lever 5 moves back and forth The plate 1 pivots to the left as stud 2 comes up lifting it as described above 9970 9970D Service Reference Manual 2 5 Service Reference Manual SUPER AQUAMATIC SYSTEM PURPOSE Controls the transfer of fountain solution from the Aquamatic Fountain to the Master or Plate FUNCTION The fountain solution flows from the Fountain Solution Bottle 1 into the Aquamatic Fountain 2 When the fluid reaches the bottle valve air cannot enter and vacuum prevents further flow of the solution Figure 2 4 The Cams 3 turn and move Levers 4 the Levers 4 move the Aquamatic Ductor Roller 5 The Aquamatic Ductor Roller 5 is moved in and out of contact with the Aquamatic Oscillator Roller 6 This action transfers the fountain solution from the Aquamatic Fountain Roller 7 to the Oscillator 6 A supply of fountain solution is then transferred to upper Form Roller 8 Form Roller Oscillator 9 lower Form Roller 10 and the Master or Plate on the Master Cylinder 11 FIGURE 2 4 2 6 9970 9970D Service Reference Manual Service Reference Manual 9970D NON MOTORIZED CONTINUOUS DAMPENER PURPOSE Controls the transfer of fo
18. moved out of its notch permitting cam 8 to move to IMAGE Figure 2 10 FIGURE 2 9 FIGURE 2 10 9970 9970D Service Reference Manual 2 11 Service Reference Manual NOTES 2 12 9970 9970D Service Reference Manual Service Reference Manual to control box from control iss FIGURE 2 11 9970 9970D Service Reference Manual 2 13 Service Reference Manual OPERATION CONTROL HANDLE FEED PURPOSE A Permits full movement of the Header Tube Assembly with each revolution of the cylinders during normal sheet feed B Permits full movement of the Header Tube Assembly with every other revolution of the cylinders during alternate sheet feed FUNCTION When the Operation Control Handle 1 is moved to the FEED position and then released it will return to either IMAGE or INK Figure 2 11 A With the Operation Control Handle 1 inthe IMAGE position the magneton arm 2 activates Hall Effect Sensor 3 When the handle is moved to the FEED position no sensors are activated As the handle passes the IMAGE position and rests in the INK position Sensors 3 and 4 are activated The microprocessor interprets two signals from Sensor 3 followed by a signal from Sensor 4 as a command to activate the Feed Control Solenoid 5 The solenoid 5 pulls link 6 and Latch Lever 7 Lever 7 releases the Feed Latch 8 allowing the Header Tube Assembly 9 to move freely The Header Tube Assembly 9 rocks ba
19. sprockettooth space d Remove the Cam Assembly 6 and reinstall it so the timing holes in the sprocket and gear 4 line up within one gear tooth space e Reinstall the chain and the Gripper Bars SPROCKET ALIGN TIMING SLOT IN SPROCKET amp HOLE IN GEAR ASSEMBLY FIGURE 5 37 9970 9970D Service Reference Manual 5 47 Service Reference Manual Gripper Bar Timing The Chain Delivery Grippers must operate freely and the Gripper Bars must be properly timed to transfer paper from the Impression Cylinder Grippers to the Chain Grippers without nicking or dropping the paper NOTE Do not operate the Chain Delivery under power until the Gripper Bar Calibrations and the clearance between the Gripper Bars and the Impression Cylinder have been checked 1 Manually turn the handwheel and check that all the Chain Delivery Gripper Bars clear the Impression Cylinder and its grippers 2 Check that all Gripper Bars open and close freely 3 Check that all cam followers are adjusted to 1 125 using the Chain Gripper Bar Gauge P N 191555 4 may be necessary to adjust the timing of the Chain Delivery Gripper to the Impression Cylinder Gripper If required adjust by performing the following steps AN CAUTION Extreme caution must be exercised when making this adjustment a Loosen the three Sprocket Mounting Screws 2 see Figure 5 38 b To advance the Chain Gripper turn the sprocket clockwise to retard the
20. the Call Card before being signed by the authorized person 10 Lubricate the machine see next section Lubrication Instructions CAUTION The Vacuum Pump is an oil less type which needs no lubrication Do not fill reservoir bottle with oil as this could damage the pump motor 11 Clean the bottles and filters 12 Clean the Drive Motor Check the brushes for wear at least once every six months under normal usage more often if the machine is heavily used NOTE The Direct Drive Motor has sealed bearings which need no lubrication 13 Clean the upper and lower phototransistors in the Chain Delivery Remove all paper lint or dry powder spray with a cotton swab 14 Check all adjustments Correct as needed 15 Reassemble the side covers controls etc 16 Run some test copies Retain a sample 17 Make a final inspection of the equipment and the general area 18 Complete the Service Invoice and present it to the person authorized to sign it 19 Remind the customer to check if they are running low on supplies Ask if you may place an order to replenish their stock 20 Keep your Sales Department informed of competitive supplies being used new applications developing and when the equipment should be replaced 6 2 9970 9970D Service Reference Manual Service Reference Manual LUBRICATION INSTRUCTIONS When lubricating pay particular attention to the oil holes all sliding parts and latching devices Note that som
21. this cord please note that the color code below 3 2 9970 9970D Service Reference Manual Service Reference Manual FUNCTION DOMESTIC INTERNATIONAL L1 BLACK ROWN L2 WHITE BLUE GROUND GREEN GREEN YELLOW Work lamp power requirements The work lamp receptacle is wired for 115vac operation at the factory If 230vac operation is required 220 240v lamps the following changes should be made to the power transformer assembly s terminal strip TS1 located in the control box assembly See Fig 22B below and sheet 1 of 8 for the schematics located in this manual for proper wiring details NOTE These wiring detail s are also called out on the decal located on the inside of the control box cover assembly 230VAC WORK LAMP HOOKUP 5 100 ORG WHT m VO WHT 6 4121101 TS1 Figure 22B 230 Work lamp Hookup PUMP MOTOR PULLEY CHANGE The pump motor and pump located in the base of each machine is factory assembled for 60Hz operation For 50Hz operation International units the pump motor belt must be shifted to the inside pulley sheeves no further adjustment is normally required 9970 9970D Service Reference Manual 3 3 Service Reference Manual ELECTRICAL COMPONENT TESTS Sheet Count Setup Test 1 Depress the SHEET COUNT key The display will read SHT COUNT previous setting Depress 1 Display will read SHT COUNT 1 Depress 2 D
22. 3 Depress the DRIVE Button The motor shall stop A WARNING WHEN POSSIBLE WHILE SERVICING THE MACHINE WITH THE GUARD BYPASS SERVICE SWITCH ENGAGED KEEP THE EMERGENCY STOP SWITCH DEPRESSED AS A SAFEGUARD 3 6 9970 9970D Service Reference Manual Service Reference Manual N O S SIDE FRAME FEED TABLE 1N M a 4 Ce n FRONT VIEW VIEW 5 FIGURE 3 1 9970 9970D Service Reference Manual 3 7 Service Reference Manual CALIBRATION PROGRAM The Calibration Program is used to enable various machine functions for a technician to make some calibrations and adjustments To enter the Calibration Program depress the Stop Key Then press the JAM OFF key followed by the 4 Key The program will perform its functions in the sequence shown in this section To exit the program press the STOP key This will return the machine to READY Low Paper Sensing Switch ile The Main Power Switch should be ON If the Alarm Light is flashing press the Guard Reset Button The display should read READY Enter the Calibration Program as described above Push E on the keyboard The display will read CALIBRATION Ensure that the Slide Assembly A is resting in the bottom of the slot B in the non operator side frame Figure 3 1 Loosen the two screws C and position the switch D so the actuator pin E is approximately in the center of the stud F and is depressed to actuate the
23. 4 Mark the trail edge of the sheet being fed into the grippers on the sheet below it on the Feed Table Lift the Upper Forwarding Roller 11 then stretch out and release the sheet Do not pull the sheet out of the grippers Mark the trail edge of the sheet again The distance between the two marks should be 3 16 To increase the buckle adjust the screws 4 and 5 to increase the 3 16 dimension between the cam plate 6 and boss 7 of gear 1 Do the opposite to decrease the buckle Tighten the screws 3 FIGURE 5 14 FIGURE 5 13 9970 9970D Service Reference Manual 5 19 Service Reference Manual IMPRESSION CYLINDER PAPER GRIPPERS The Impression Cylinder Grippers must be properly adjusted for accurate register There must be no binding backlash or malformation of parts on the Gripper Assembly Fon gt 10 11 12 13 Remove one Chain Delivery Gripper Bar Assembly Set the Impression Cylinder Gap Control at 1 Check for worn or malformed Gripper Fingers Stop Assembly parts and Ejector Fingers Check for a 010 to 013 clearance between the Paper Stops and the Cylinder Anvil in the closed position Figure 5 15 Seat the Impression Cylinder Latching Solenoid Plunger manually and turn the handwheel until the Impression Cylinder latches Turn the handwheel until the grippers are open to receive paper Manually insert a sheet of 20 Ib paper over the Upper Forwarding Roller to the stops betwe
24. 5 Curved Feeler Gauge 0606 Flat Feeler Gauge Feeler Gauge Set Impression Cylinder Support Arm Gauge Master Cylinder Support Arm Gauge Cylinder Adjusting Tool 1 4 x 11 32 Gripper Gauge Chain Gripper Bar Gauge original Impression Cylinder Gripper Gauge Chain Delivery Cylinder Adjusting Tool Puller Leveling Bar 1 4 x 1 x 18 Paper Guide Adjusting Fixture Continuity Tester 15 16 005 Gauge Aligning Bar Cable Connector Tool 046 Right Angle Gauge Chain Gripper Bar Gauge Pressed Anvils 9970 9970D Service Reference Manual Service Reference Manual SPECIFICATIONS PAPER SIZE 3 x 5 to 18 1 2 x 17 3 4 76 mm x 127 mm to 343 mm x 451 mm PAPER WEIGHT 12 Ib 5 4 kg Bond to 110 Ib 50 kg Index PRINTING AREA 12 1 2 x 17 1 4 318 mm x 438 mm 4 PLATE SIZE Metal 13 x 19 3 8 330 mm x 492 mm Paper 12 3 4 x 18 1 8 324mm x 460mm 5 BLANKET SIZE 10 11 12 12 5 8 x 19 3 16 321 mm x 487 mm MASTER CYLINDER DIAMETER 6 7560 0007 BLANKET CYLINDER DIAMETER 6 6010 6 5995 IMPRESSION CYLINDER DIAMETER 6 7587 6 7573 MACHINE FRAME SPACING 17 43 2 cm VERTICAL REGISTRATION 005 127 mm LATERAL REGISTRATION 005 127 mm PRINTADJUSTMENT Raise 5 1 2 139 mm Lower 6 1 2 165 mm 9970 9970D Service Reference Manual 13 BLANKET THICKNESS 068 066 14 FEED TABLE CAPACITY 20 or 5 000 sheets of 20 Ib paper 15 CHAIN DELIVERY PAPER CA
25. 64 26 0mm using the Master Cylinder Support Arm Gauge P N 191549 Loosen the set screws in the Master Cylinder Shaft Collar located on the non operator side and screw B on the Master Cylinder Lever located on the operator side Figure 5 4 Install the Cylinder Adjusting Tool P N 191551 into the threaded end of the Master Cylinder Shaft Using the locking knob draw the shaft toward the operator side of the machine and the shoulder against the Master Cylinder Lever Push on the tool to position the cylinder to the non operator side Shoulder Support Arm Link and the collar on the non operator side against the side frame Tighten the set screws in the collar Loosen the locking knob on the Cylinder Adjusting Tool P N 191551 enough to free the Master Cylinder Lever Turn the handwheel until the solid areas of the Master and Blanket Cylinders are together Insert a 0615 Curved Feeler Gauge into the crotch of the Master and Blanket Cylinders at approximately 1 2 from both ends of the machined surface 9970 9970D Service Reference Manual 5 7 Service Reference Manual FIGURE 5 3 1 39 64 GAP CONTROL KNOB OPERATOR SIDE SET AT 1f SUPPORT ARM SPRING FLAT OF CAM CYLINDER SUPPORT ARM FIGURE 5 4 15 16 001 MINIMUM 003 MAXIMUM 036 050 1 MASTER CYLINDER LEVER 2 MAXIMUM BACK POSITION 3 LATCH LEVER 5 8 9970 9970D Service Reference Manual Service Reference Manual 7 Turn the
26. 90 to the dolly Figure 5 40 2 If necessary adjust by performing the following steps a Loosen nuts 2 which mount the Door Stops 3 and opposition the Door Stops so the Paper Stop Assembly 4 is at 90 to the Dolly b Tighten the nuts 2 NOTE The Door Assembly should contact both the operator and non operator side stops at the same time Side Jogger Check If all parts are to specifications and have not been abused the operator and non operator side joggers should be parallel to the Chain Delivery Side Frames and each other within 1 32 79mm 1 Using a 6 machinist s scale and checking from the machine surfaces on the joggers check that the side joggers meet the specifications PAPER STOP ASS Y FIGURE 5 40 5 50 9970 9970D Service Reference Manual Service Reference Manual PAPER JAM DETECT The Paper Jam Detect is a Beam Interrupt System made up of a light source and a photodetector The light source is an infrared LED type and it is not visible to the naked eye The light source and the photodetector must be aligned for the sensor to operate The yellow LED on the Interface PC Board in the Control Box will light when the light source and Sensor Unit are properly aligned 1 Loosenthe light source mounting screws Move the light source in the adjusting slot of its mounting bracket until the yellow LED on the Interface PCB comes ON Note this position Now move it until the LED goes OFF Adjust the ligh
27. ATOR SIDE SET AT 1 SUPPORT ARM SPRING FLAT OF CAM LATCH LEVER MAXIMUM FORWARD POSITION SUPPORT ARM IMPRESSION CYLINDER LEVER MAKE THE ADJUSTMENT WITH THE THROW OF THE ECCENTRIC IN THE LONGEST POSITION QE 0 IR 9970 9970D Service Reference Manual 5 5 Service Reference Manual 10 11 12 Insert a 0615 Curved Feeler Gauge P N 191544 into the crotch of the Impression and Blanket Cylinders approximately 1 2 at both ends of the machined surface Turn the Cylinder Adjusting Tool clockwise until both Impression Cylinder Support Arms just move Tighten the locking knob on the tool to hold the Cylinder Shaft at this position Tighten screw With the Impression Cylinder Lever latched adjust screws D on both sides to obtain a 005 clearance between the screw and the Separator Pin Tighten the lock nuts and check the 1 31 64 37 7mm setting of the Support Arm Spring Loosen the locking knob on the Cylinder Adjusting Tool P N 191551 Unlatch the Impression Cylinder Lever and remove the Feeler Gauges from between the cylinders Turn the handwheel until the Impression Cylinder Lever is at its maximum forward position toward the feed end of the machine Pull the Latching Lever down so that it engages the Impression Cylinder Lever and while holding itin position adjust screw A to obtain a 0 036 to 0 050 0 9mm to 1 3mm clearance between the Impression Cylinder Lever and the Latch
28. Cylinder Adjusting Tool P N 191551 clockwise until both Support Arms just move Keeping the Support Arms separated position the Master Cylinder Lever sothe Latch Lever will latch it Tighten screw NOTE The Master Cylinder Lever maintains the location of the Master Cylinder atthe Operator side frame The Master Cylinder end play must not exceed 003 076mm The Lever must not bind at either extreme of travel Unlatch the Lever remove the Gauges and check 8 Withthe 0615 Curved Feeler Gauge in place and the Master Cylinder latched adjust both Support Arm Springs for 1 39 64 26 0mm Figure 5 3 9 Adjust screws D both sides for 002 051mm between Screws D and the Separator Pins with the heads of the pins in contact with the flats on the cam Do not exceed the 002 tolerance Figure 5 3 10 Unlatch the cylinder 11 With the 0615 Curved Feeler Gauges in place turn the Cylinder Adjusting Tool P N 191551 clockwise until the Master Cylinder comes into light contact with the Curved Feeler Gauges 12 Loosen nut F and adjust eccentric for equal contact on both Curved Feeler Gauges Figure 5 4 Tighten nut NOTE After each adjustment on Eccentric relatch the Cylinder and check the 002 051mm tolerance between the Stop Blocks and Screws D Adjust Screws D as necessary The indicator mark on Eccentric G must be between the twelve o clock 12 00 and four o cloc
29. D RESET button to turn off the Reset Light Lift up the Aquamatic Guard The Aquamatic LED and Guard Reset Light shall come on Close the guard and the LED will go off Push the GUARD RESET button to turn off the Reset Light Flip backthe Blanket Cylinder Guard The Blanket Cylinder LED and Guard Reset Light shall come on Close the guard and the LED will go off Push the GUARD RESET button to turn off the Reset Light NOTE If the Guard is not closed pushing the Guard Reset will not change display and Guard conditions Depress the Drive Button On the control panel Liftthe Chain Delivery Guard The Motor shall stop the Guard Reset Light and LED shall come ON Close guard Only the indicator LED shall go OFF The Motor shall notstart Pressthe Guard Reset Button The light will go out Lift up all guards one after another and watch that the corresponding LED indicators are turned ON Close all guards Push the Guard Reset All lights OFF 9970 9970D Service Reference Manual 5 57 Service Reference Manual AQUAMATIC DUCTOR ROLLER To assure uniform distribution of fountain solution and copy quality the Aquamatic Unit must be properly adjusted NOTE The Form Rollers must be adjusted before doing this adjustment 1 Position the Operation Control Lever 1 in NEUTRAL Place the Ink Form Rollers 2 in the ON position the Aquamatic Control Lever 3 in the OFF position the Aquamatic Night Latch 4 in the ON position and the Aqu
30. Figure 5 31 9 Return the Operation Control Lever to NEUTRAL and the Form Roller Knobs to the ON position OPERATORS SIDE FIGURE 5 31 CENTER PUNCH MARKS 5 40 9970 9970D Service Reference Manual Service Reference Manual THIRD FORM ROLLER ADJUSTMENT 1 Inkthe Ink roller system without the Third Form Roller Assembly installed in the machine Attach a 4000 Series Master to the Master Cylinder 2 Adjust the eccentric studs A on the operator and the non operator sides to the maximum up position smaller end up as seen from inside the machine Figure 5 32 FIGURE 5 32 9970 9970D Service Reference Manual 5 41 Service Reference Manual 11 12 13 14 Slightly loosen bolts B on the operator and the non operator sides Figure 5 33 Adjust the hex eccentrics D onthe operator and non operator sides sothe upper pivot on the carrier brackets are at the maximum inward position toward the Master Cylinder Install the Third Form Roller Assembly into the machine The operator side arm must engage the slot inthe guide bracket E Both the Operator and Non Operator Sides must engage brackets H Lock the assembly in place with the slide catches one on each side Thread the carrier arm lock screws into the trunnions F and tighten them until the shoulders of the screws are seated on the flats of the trunnions Be sure the Form Roller Knobs are in the ON position and the Operation Control Leve
31. ILLATING ROLLER INK REPELLENT WAVER ROLLER AND INK DUCTOR CAM To secure uniform ink coverage A The Aquamatic Oscillator and Form Oscillator must change direction when the Upper and Lower Form Rollers are in the open area of the Master Cylinder B The Ink Ductor Roller must first contact the Distributor Roller when both Form Rollers are in the open area of the Master Cylinder C The Aquamatic Oscillator Roller must be centered within approximately 020 51mm at either extreme of travel with the Ductor Roller and must not travel past the edge of the Ductor Roller at either end NOTE The machine must be at 0 Print Adjustment gt Place the Operation Control Lever in the NIGHT LATCH position Place the Lower Form Roller in the ON position Remove the taper pin 1 from the Cam Shaft Gear 2 Figure 5 26 Turn the handwheel until the largest hole in the Impression Cylinder Separating Cam 3 is in direct line from the center of the cam to the center of the Master Cylinder Support Arm Pivot Stud Remove the retainers 7 washer 8 and Operating Lever Link 9 While holding the Cam Shaft Gear 2 disengage the Drive Gear 10 fromthe Waver Cam and Gear 15 by pulling the gear and shaft outward Turn the Waver Cam and Gear 15 clockwise viewed from the non operator side until the Oscillator Rollers have traveled to their extreme at the non operator side Slowly continue to turn the Waver Cam and G
32. Lever Tighten the nut at A NOTE The throw of the Eccentric Stud must be placed in the longest position from the center of the Actuating Lever Do not make adjustments with the throw in the shortest position 13 Seat the Impression Cylinder Latching Solenoid Plunger by hand and adjust screw C for a gap of approximately 005 008 25mm between the point of screw and the Latch Lever when the Latch Lever is in its maximum down position NOTE The above are all preliminary adjustments and may need refining after taking a bead line between a known good inked Blanket and the Impression Cylinder This checkis made atthe end of the Form Roller Adjustment when the machine is inked 5 6 9970 9970D Service Reference Manual Service Reference Manual MASTER CYLINDER SUPPORT ARMS AND MASTER CYLINDER LEVER The Master Cylinder must lower into contact with the Blanket and lock in position under proper spring pressure NOTE Setthe Impression Cylinder Gap Controlto the number 1 position and ensure thatthe flats on the Master Cylinder Gap Control Cams are parallel to the heads of the Separator Pins 1 Using screw D position the operator and non operator side Master Cylinder Support Arms for a distance of 3 4 19mm from the underside of the Stop Block to the machined side of the Support Arms Figure 5 3 Finger tighten the nuts at D Adjust the Master Cylinder Support Arm Springs to 1 39
33. MASTER CYLINDER LATCHING PURPOSE When the Operation Control Handle is moved from INK directly to FEED the Master Cylinder automatically latches is held against the Blanket Cylinder one revolution after the Impression Cylinder latches FUNCTION When the Impression Cylinder latches the Counter Operating Lever 1 on the operator side of the Impression Cylinder Shaft turns Lever 1 with spring 10 attached lifts the Master Cylinder Link 2 up The Master Cylinder Latch 3 is pushed up to engage the Master Cylinder Lever 4 Figure 2 18 Lever 4 is engaged when the Master Cylinder Power Lever 5 moves to the high of cam 6 turning lever 4 Lever 4 on the eccentric Master Cylinder Shaft 7 lowers the Master Cylinder 8 into contact with the Blanket Cylinder 9 The Master Cylinder 8 will be kept lowered as long as the Impression Cylinder is latched since lever 4 stays engaged by latch 3 NOTE The Master Cylinder may also be latched for imaging and running down the blanket as described in previous section Operation Control Handle Ink to Image REN 5 8 s FIGURE 2 18 EIU M RS 9970 9970D Service Reference Manual 2 21 Service Reference Manual 2 a gt FIGURE 2 19 9970 9970D Service Reference Manual 2 22 Service Reference Manual TABLE RAISE PURPOSE Raises the Feed Table to the proper feeding level FUNCTION Manual
34. Manual SECTION 3 ELECTRICAL OPERATION AND TEST PROCEDURES INSDICK 9970 9970D Service Reference Manual 3 1 Service Reference Manual CONTROL BOX LINE VOLTAGE INPUT CHANGES The 9900 series machines are factory wired for 230vac 60Hz power input All control boxes are equipped with a domestic 230vac 15A power service cord with black white green insulated conductors If changes are required for other than above ex 200vac 220vac or 240vac and 50 cycle operation please see Fig 22A below or sheet 1 of 8 of the schematics included in this manual Note These wiring detail s are called out on the decal located on the inside of the control box cover assembly TS1 PRIMARY HOOKUP gt nmn a x a wile m mls nja m m n gt 200VAC 50 60HZ 230VAC 50 60H7 FACTORY WIRED 240 50HZ 6 Figure 22A 51 Primary Hookup NOTE If the machine control box assembly is to be used on a 50Hz power system International units only then the Domestic power service cord need s to be replaced with the International power service cord which is packed in the packed unit supplied with each machine This cord complies with the International color code system brown blue green yellow A suitable hand attached power plug will have to be purchased separately and applied to the end of the service cord When changing
35. PACITY 20 or 5 000 sheets of 20 Ib paper 16 DUPLICATOR SPEED 3 000 to 10 000 Copies Per Hour 17 GRIPPER MARGIN 1 4 6 35 mm 18 POWER SOURCES 200 240VAC 50 60 Hz 15 A 19 SOUNDLEVEL MAXIMUM 80 dB A 20 POWER CONSUMPTION MAXIMUM 200 VAC 50 Hz 10 A 1600 W 200 VAC 60 Hz 10 A 1400 W 220 VAC 50 Hz 10 A 1600 W 230 VAC 60 Hz 10 A 1600 W 240 VAC 50 Hz 10 A 2000 W 21 WEIGHT APPROXIMATE 1000 Ib 450 kg 22 MESSAGE DISPLAY LANGUAGES AVAILABLE Standard English Dutch German Japanese French Spanish Optional Service Reference Manual SECTION 2 FUNCTIONAL OPERATION ASDICK 9970 9970D Service Reference Manual 2 1 Service Reference Manual INTRODUCTION TO FUNCTIONAL OPERATION The following discussion of the Model 9970 A B Dick Offset Duplicator explains the function of various parts of the machine Each function will be discussed separately The explanations are made with the assumption that all parts are in perfect condition and adjustment DIRECT DRIVE SPEED CONTROL PURPOSE Controls the drive and speed of the Drive Shaft and cylinders FUNCTION The Drive Motor 1 turns the Drive Belt 2 turning the Blanket Cylinder 3 The Speed UP and Speed DOWN Switches 4 control a potentiometer which speeds up or slows down the Drive Motor Figure 2 1 FIGURE 2 1 2 2 9970 9970D Service Reference Manual Service Reference Manual INK ROLLER AND RATCHETING SYSTEMS Refer to Fi
36. Q ABDICK 9970 9970D Service Reference Manual hb do t p l 1997 A B Dick Company Service Reference Manual WARNING This equipment must be connected to a properly grounded three 3 wire outlet Failure to do SO creates a potential danger of electrical shock The circuit to which this equipment is connected must be current protected by a device with suitable current interruption capability as required by underwriters laboratories Canadian standards association N E M A or local code whichever is the most stringent When servicing this equipment with covers removed exposed terminals are an electrical hazard Caution must be exercised WARNING This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interfer ence to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense NOTE Users of this equipment service document are warned that A B Dick service documents are de signe
37. TMENT IS SATISFIED Operating adjustments are discussed in the 9970 Operating Instructions The adjustments in this manual should only be made by a Customer Support Representative not by the operator To make the best use of this section of the manual work as follows Read the requirements to find out what is expected of the adjustment Read the adjustment procedure If all requirements are met go no further If all requirements are not met make the adjustment Fon gt NOTE Before making any adjustments position the Buckle Control at 1 print raise and lower adjustments at and both Gap Controls at 1 5 2 9970 9970D Service Reference Manual Service Reference Manual NOTES 9970 9970D Service Reference Manual 5 3 Service Reference Manual IMPRESSION CYLINDER SUPPORT ARM LEVER AND LATCH LEVER The Impression Cylinder must lift and lock in the duplicating position under proper spring tension NOTE Set the Impression Cylinder Gap Control to the number 1 position Ensure that the flats on the Master Cylinder Gap Control Cams are parallel with the heads of the Separator Pins Remove the Blanket 1 Loosen screw on the Counter Operating Lever located on the operator side of the machine Figure 5 1 2 Using screw D temporarily position the operator and non operator side Impression Cylinder Support Arms so the distance from the underside of the Stop Block to the machined side of the Support Arm
38. Y ADJUSTMENTS irs dades iced 5 46 Chain Adjustments and Timing Check 5 46 Gripper Bar Timing 5 48 Control Lever a eae 5 49 Et 5 50 Side Jogder CHECK ER iSo RC nsn beue ute eua E mea 5 50 PAPER WAM DE TEC totem Neca ted Stee a Me 5 51 VACUUM PUMP PULLEY ALIGNMENT AND BELT TENSION 5 52 DRIVE MOTOR TENSION Ee 5 53 DG POWER SUPPLY re dee toco ruo er aee dotate 5 54 SAFETY GUARD SYSTEM d eb et RM e e e EET 5 55 Guard Switche Sis erea n dte PORT ec Rn rope 5 55 Side Jogger eu Md 5 56 Chain Delivery Guard Microswitch Adjustment 5 56 Safety Guard System Test ss 5 57 AQUAMATIC DUCTOR ROLLER a PR RR e lu epi 5 58 AQUAMATIC DUCTOR LOCKOUT SYSTEM innnisttindentemttiuente 5 60 SECTION 6 MAINTENANCE der ated 6 1 EUBRICATIONINSTRUGTIONG 3 correr recette Lett tn 6 1 MAINTENANCE AGREEMENT CALL PROCEDURE su 6 2 LUBRICATION INSTRUCTIONS Eae etc et bee tet
39. ad line is visible The width of the bead line must be equal across its entire length If the width of the bead line is not equal across it s entire length loosen the locknut of screw D on the thinner side and adjust the screw until the bead line is even Refer back to Figure 5 3 After setting the Master Cylinder ink up the entire blanket on the Blanket Cylinder Insert a sheet of paper 13 x 17 3 4 over the Forwarding Rollers into the grippers Turn the handwheel until the paper is between the Blanket and Impression Cylinders Turnthe Impression Cylinder Lever on the non operator side counterclockwise to bring the cylinders into light contact Turn the handwheel and observe the ink bead line It s width must be equal across its entire length If the bead line is uneven loosen the locknut on screw D on the thinner side and adjust the screw until the bead line is even Refer back to Figure 5 4 5 12 9970 9970D Service Reference Manual Service Reference Manual 012 MINIMUM 020 MAXIMUM u SRV AN oy FIGURE 5 7 3 TOP SURFACE OF THE GUARD IN FIGURE 359 THE MASTER LOADING POSITION 1 CLAMP HOOK HEX HEAD SCREW 2 LOCKING LEVER COLLAR MASTER CYLINDER ALLEN SET SCREW NONS 0127 MINIMUM 020 MAXIMUM FIGURE 5 9 1 CLAMP PLATE 2 SCREWS 3 UNIVERSAL CLAMP ASSEMBLY 9970 9970D Service Reference Manual 5 13 Service Reference Manual MASTER CYLINDER CLAMP The Straight E
40. amatic Lockout Latch 5 in the MANUAL position Figure 5 49 2 Turn the Handwheel until the Ductor Operating Levers 6 nave traveled as far as they can toward the Aquamatic Oscillator 7 Adjust the eccentric screws 8 on the Ductor Operating Levers 6 by turning the screws and trucks up on both sides for a 1 64 40 gap between the Aquamatic Ductor Roller 9 and the Aquamatic Oscillator 7 across the entire length 3 Movethe Aquamatic Control Lever 3 to approximately clock position Position the Operation Control Lever 1 to INK Turn the Handwheel until the Aquamatic Ductor Roller 9 just separates from the Aquamatic Oscillator Roller 7 NOTE At this point it is extremely important that the Form Roller is on the Cylinder surface and not in the open area of the Cylinder Move the Handwheel again if necessary to obtain the proper relation 4 Move the Aquamatic Night Lever 5 and place a one inch strip of 20 Ib paper between the Ductor and Oscillator Roller at each end but not over the edges of the rollers Lower the Ductor Roller in contact with the paper strips and the Oscillator by moving the Aquamatic Night Latch Lever 4 to the ON position Check for an even pull on each side If the drag is not even adjust either eccentric on the Ductor Operating Levers for an even feel Recheck the adjustment Turn the Aquamatic Control Lever 3 to the OFF position Recheck the 1 64 40mm gap between the Aquamatic D
41. ams 5 and studs 6 permit the slides 7 to move toward the Master Cylinder Figure 2 8 Springs 8 seat the pins 9 of the Form Roller Levers 10 against the slides 7 The slides 7 and Form Roller Levers 10 move toward the Master Cylinder and position the Upper 11 and Lower 12 Form Rollers into contact with the Master Cylinder As the Lower Form Roller 12 moves towards the Master Cylinder the Auxiliary Form Roll Oscillator 13 moves upward staying in contact with the Lower Form Roller 12 Oscillator 13 moves upward because springs 14 push the entire Auxiliary Form Roller Assembly upward pivoting on shafts 15 As the assembly moves upward the Auxiliary Form Roller 16 comes into contact with the Master Cylinder FIGURE 2 8 SI A locked 14 in place 2 10 9970 9970D Service Reference Manual Service Reference Manual OPERATION CONTROL HANDLE INK TO IMAGE PURPOSE Allows the Master Cylinder to contact the Blanket Cylinder FUNCTION When the Operation Control Handle 1 is moved to IMAGE stud 2 lifts the Arm Assembly 3 lifting the Master Cylinder Latch 4 As the cylinders turn the Master Cylinder Lever 5 is engaged by latch 4 Figure 2 9 Lever 5 on the Master Cylinder Eccentric Shaft lowers the Master Cylinder 6 into contact with the Blanket Cylinder 7 When the Detent Cam 8 was moved to IMAGE the link 9 was moved up by the screw and disc 10 stud 11 was
42. asses Follow all cautions and statements on the labels of the supplies you use special attention to all WARNINGS CAUTIONS and NOTES in this manual WARNINGS CAUTIONS and NOTES each have specific purposes Disregarding a NOTE will cause you inconvenience but not equipment damage or personal injury Disregarding a CAUTION may cause equipment damage but not personal injury Disregarding a WARNING may cause personal injury 2 9970 9970D Service Reference Manual Service Reference Manual PROOF GATE A WARNING THERE ARE MOVING PARTS INSIDE THE PROOF GATE SHUT DOWN THE MACHINE BEFORE INSERTING TOOLS OR HANDS THIS IS NOT A SAFETY GUARD THE MACHINE WILL CONTINUE TO RUN IF THE GATE IS OPENED NOTE The proof gate is designed only for access to pull one copy at a time for viewing during the run It is not to be used as an access area to remove paper jams while the machine is running Door Assembly Proof Gate 9970 9970D Service Reference Manual 3 Service Reference Manual REQUIRED TOOLS In addition to the basic hand tools the following gauges are required to calibrate the 9970 QUANTITY 1 each 2 each 1 each each each each each each each each each each each each each each each each each 191541 191544 191545 191546 191548 191549 191551 191552 191555 191556 191737 191578 196336 197058 191678 DESCRIPTION Suction Foot Adjusting Gauge 061
43. belio tad ie pA deste pei E 5 18 PAPER BUCKLE ite n Det Rm none 5 19 IMPRESSION CYLINDER PAPER GRIPPERS siens 5 20 TABLE RAISING LAT RAL ES cus tu AL DA A dE 5 21 Microlateral Side Guide ettet ee etr eter rl 5 22 Paper Feed Guides doo de c 5 23 PEED TABLE REGULATION 5 edat Perdu 5 24 9970 9970D Service Reference Manual Service Reference Manual PAPERHEIGHT eee eue esu dui duos 5 25 SUCTION FEET AND BLOWER TUBES tmt terme rene 5 26 FEED RAISING AND SUCTION FOOT SHAFTS 5 27 UPPER FORWARDING ROLLER etie cot en eu oe Eh Ere Pes etie EDI 5 28 FEED CONTROL LATCH LEVER AND SOLENOID eem 5 29 VACUUM MAKE AND BREAK LINK iit erunt e utt e 5 30 AQUAMATIC OSCILLATING ROLLER INK REPELLENT WAVER ROLLER 5 31 AND INK DUG TOR CAM ceti ptor aeter 5 31 DUCTOR LEVER TRUCK CAM AND INK DUCTOR LATCHOUT ssaeseeeeseseeseeenn 5 34 LATERAL INK FORM AND RIDER ROLLER 5 36 UPPER AND LOWER INK FORM ROLLER PRESSURE 5 38 THIRD FORM ROLLER ADJUSTMENT else ar hte tpe tnr 5 41 PRINT RAISE EOWER S RIP 5 43 MACHINE TO CLOCK SYNC MECHANISM TIMING eene 5 44 CHAIN DELIVER
44. btain a 2 3 4 70mm dimension from the edge of the Roll Pin to the corner of the Counter Operating Lever Figure 5 5 Hold the Counter Operating Lever against the Support Arm and tighten the screw C2 NOTE The Counter Operating Lever maintains the location of the Impression Cylinder at the operator side frame 001 to 003 025mm to 076mm End Play is permissible It must not bind at either extreme of travel 3 Remove the Oylinder Adjusting Tool P N 191551 and replace the Master Cylinder Latch Link washer Tru Arc ring and spring 4 Turn the handwheel until the Counter Operating Lever is at its extreme forward position Adjust eccentric screw E so the Master Cylinder Latch Lever can fully engage with the Master Cylinder Lever Tighten the locknut on screw E FIGURE 5 5 1 MASTER CYLINDER LEVER 2 MAXIMUM BACK POSITION TOWARD RECEIVING END LATCH LEVER 001 MINIMUM 003 MAXIMUM MAXIMUM FORWARD POSITION TOWARD FEED END COUNTER OPERATING LEVER DOES NOT OPERATE COUNTER ROLL PIN LATCH LINK 5 10 9970 9970D Service Reference Manual Service Reference Manual MACHINE TIMING All timing marks must align before the machine is operated Face the open areas of all the cylinders towards the receiving end of the machine 2 Position the Raise Lower at 0 3 Align the timing marks The marks all the gears come into time every five revolutions of the cylinders The cylinders come into ti
45. ce Reference Manual Service Reference Manual FIGURE 5 50 OPERATION CONTROL LEVER 9970 9970D Service Reference Manual 5 61 Service Reference Manual NOTES 5 62 9970 9970D Service Reference Manual Service Reference Manual SEcTION 6 MAINTENANCE AND LUBRICATION INSTRUCTIONS ASDICK 9970 9970D Service Reference Manual 6 1 Service Reference Manual MAINTENANCE AGREEMENT CALL PROCEDURE 1 Contact the customer for an appointment 2 Upon arrival determine if the operator has any problems with the equipment 3 Remove the operating controls and the upper side covers from the Duplicator Unit Replace the operating controls as needed Clean and inspect the ink rollers Deglaze desensitize and condition as needed Clean and inspect the Aquamatic rollers Clean the side frames tie bars and all accessible surfaces and moving parts Clean all gears to remove any foreign matter between the gear teeth Clean and etch the Master and Impression Cylinders Check all parts for wear paying particular attention to gears levers trucks cams springs bearings and other moving parts Replace as needed st All Parts and Rollers should be replaced as needed They should NOT continue to be used until trouble develops or damage is caused to other parts When approval to replace parts cannot be obtained the part numbers and date should be recorded on the Service Invoice and
46. chains Remove the master link on one of the chains Firmly grasp the chain with your left hand and use your right hand to slowly rotate the handwheel in a clockwise direction to carefully remove the chain Repeat Step 6 for the remaining chain FIGURE 4 16 9970 9970D Service Reference Manual 4 15 Service Reference Manual 8 Cutthe wire ties and remove the strain reliefs from the non operator side wiring harnesses 9 Remove the Chain Delivery Interlock wiring from the in line splices 10 Disconnect the Jam Detect photoreceptor and Full Dolly Sensor connectors 11 Cut the tie wraps on the machine tie bar 12 Remove the five strain reliefs B 4 outside 1 inside that secure the Auxiliary Feed and Proof Switch Wires Remove the wires from both sides of the Chain Delivery by routing them through the side of the machine Position the wires to the side and let them hang Figure 4 17 4 16 9970 9970D Service Reference Manual Service Reference Manual 13 14 15 16 17 18 19 20 21 Remove the Tru Arc Ring C from the stud D Remove the stud D Figure 4 18 Remove the Tru Arc Ring E on the Sprocket Bar Shaft and slide the cam F toward the non operator side Remove the lower four bolts G Figure 4 17 Remove the four bolts H 2 on each side on the midsection support L shaped brackets Remove the four remaining bolts I upper and lower on each side and remove the Chain Delivery
47. ck and forth once with each revolution of the cylinders NOTE The Feed Control Solenoid may also be activated by depressing the Feed Key on the Keyboard or the Feed Button on the Chain Delivery For Alternate Sheet Feed the Operation Control Handle is moved from IMAGE to FEED andis returned back to the IMAGE position A signal from Sensor 3 is followed by another signal from Sensor 3 The microprocessor interprets two signals in a row from Sensor 3 as a command to commence Alternate Sheet Feed The Feed Control Solenoid 5 is activated and deactivated to allow the Header Tube Assembly 9 free movement only during every other cylinder revolution The Operation Control Handle is moved from IMAGE to INK to return to normal feed and the microprocessor interprets the signal from Sensor 4 as a command to begin normal sheet feed If the handle is moved back to IMAGE the signal from Sensor 3 will once again commence Alternate Sheet Feed 2 14 9970 9970D Service Reference Manual Service Reference Manual PAPER FEED PURPOSE Moves the Suction Feet vertically and horizontally FUNCTION Horizontal Movement Whenever the machine is running the Suction Feet will move horizontally the truck and lever 1 follow the high of cam 2 The link 3 moves lever 4 and lever 4 moves truck 5 which pivots lever 6 and the Suction Feet Assembly 7 The Suction Feet 8 then move forward Figure 2 12 Vertical Movement When the Feed Cont
48. ct order as you disassemble to ease reassembly When reassembling you can refer to a This section b The Wiring Harness and the Component Location Diagrams in the last section of this manual c The 9970 Parts Catalog Check these sources BEFORE you take apart the machine to make sure the information you will need is available 5 Take notes during disassembly if the sources in step 4 are unclear or incomplete 4 2 9970 9970D Service Reference Manual Service Reference Manual NOTES 9970 9970D Service Reference Manual 4 3 Service Reference Manual MASTER CYLINDER Removal NOTE The Master Cylinder should be protected with a Clean Up Mat Remove the Aquamatic Trough A Figure 4 1 2 Remove the Master Cylinder Gear Guard B Figure 4 1 3 Remove the Switch Mounting Bracket C on the non operator side and then remove the Reed Switch and cover D Figure 4 1 4 Remove the screws and nuts E two 2 on the non operator side one 1 on the operator side Figure 4 2 5 Loosenthe nuts F on both sides of machine Figure 4 2 Remove the Aquamatic Control Handle G screw and stud NOTE The Aquamatic Assembly should now be tilted up 4 4 9970 9970D Service Reference Manual Service Reference Manual FIGURE 4 1 9970 9970D Service Reference Manual 4 5 Service Reference Manual 7 Remove the Operation Control Handle Cam and PCB Assembly H Figure 4 3 8 Remove the Upper Tie Bar 1
49. d the pump shall turn off Push the Feed Switch again and the machine starts feeding and counting Alternate Sheet Feed Test Place the Single Lever Control in the Feed Position and bring it back to the Image Position The machine will start feeding every other cylinder revolution Move the lever to the Ink Position The machine will feed with each revolution 9970 9970D Service Reference Manual Service Reference Manual Emergency Switch Test 1 While the machine is running push the Emergency Stop Switch The machine shall stop immediately the display shall read EMERG SWITCH TROUBLE and the Alarm Light shall flash 2 Release the Emergency Switch The Alarm Light shall turn off and the display shall read PUSH DRIVE 3 Push DRIVE The machine shall run at Set Speed Jam Test 1 Create a misfeed Press the Feed Key so the machine starts feeding Stop the paper from being fed After four consecutive misfeeds the display shall read MISFEED PSH C and the feed will be off 2 Push The display shall read COUNT XXXX 3 Push the Feed Key The machine shall start feeding again 4 Createaninputjam Stopthe paper atthe Inout Sensor Thedisplay shall read CLEAR INPUT JAM The FEED and PUMP will be OFF and the machine will STOP 5 Clear the input jam and push C The display shall read PUSH DRIVE 6 Push DRIVE The machine shall run at set speed 7 Push the Feed Key and the machine will start feeding a
50. d to be used in conjunction with an A B Dick service training class An untrained person using this document without the benefit of the accompanying training could inadvertently cause damage to the equipment and or cause injury to himself herself or others Users of this document are advised that A B Dick Company shall not be liable for any personal injury or property damage arising out of the use of this document by untrained persons IMPORTANT NOTICE The information contained in this publication is strictly confidential No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of A B Dick Company Further the custodian of this document shall ensure that no part of this document shall be disclosed or permitted to be disclosed to any third party or usedfor any purpose otherthan that for which itis intended without the prior written permission of A B Dick Company 9970 9970D Service Reference Manual Service Reference Manual Contents SECTION 1 INTRODUGTION ta ten SEC Up etu MR SE 1 1 WINNT FREON II apu in a 1 2 HOW TOUSE THIS MANUAL eee eh dente uds 1 2 SAPETY PRECAUTIONS cas gandia 1 2 PROOF GATE sente 1 3 HEOUIHED TOOLS at ei du t
51. dge Clamp must have a 012 to 020 clearance 30mm to 51mm clearance between the Universal Clamp Assembly and the Clamp Plate with the clamp in the closed position Figures 5 7 and 5 8 1 Loosen the screws that mount the Universal Clamp Assembly to the hinge Figure 5 9 2 Adjust the Universal Clamp to attain the 012 to 020 30mm to 51mm dimension Tighten the screws Figure 5 9 NOTE The 012 minimum to 020 maximum dimension 30mm to 51mm is to be set on both ends of the Clamp Assembly between the first two Pinbar Studs in the Universal Clamp The two 012 to 020 settings must be within 003 076mm of each other 3 Setthe Head Clamp Lateral and Angular Adjusting Knobs to midpoint on their adjustments 5 14 9970 9970D Service Reference Manual Service Reference Manual CLAMP SUBASSEMBLY TO MASTER CYLINDER 1 Leave the operator and non operator side Clamp Mounting Brackets loose 2 Move the brackets so Surface A is level with Surface B and Surface C contacts Surface D at Point E at both ends of the cylinder when the Universal Clamp is closed Figure 5 10 3 Tighten the operator and non operator side Mounting Bracket screws Check that the adjustment did not change and that lateral and angular adjustments move freely c D FIGURE 5 10 9970 9970D Service Reference Manual 5 15 Service Reference Manual ONOg PWN Cr ol od od o O O ON OA FIGURE 5 11
52. e Ink Ductor Roller must first contact the Distributor Roller when the Lower Form Roller is in the open area of the Master Cylinder 10 Loosen the locknut 18 and turn the eccentric screw 19 either way until Distance is at a minimum Adjust the eccentric screw 19 to center the Aquamatic Oscillator Roller 20 with the Ductor Roller 21 Tighten the locknut 18 NOTE The distance from the end of the Aquamatic Oscillator Roller to the end of the Dampener Form Roller must be approximately 020 51mm when the Roller is on the extreme ends of each oscillation At no time should the Oscillator Roller pass the edge of the Ductor Roller at either end 9970 9970D Service Reference Manual 5 33 Service Reference Manual DUCTOR LEVER TRUCK TO CAM AND INK DUCTOR LATCHOUT The Actuating Shaft Truck must be adjusted for proper ink ducting The Ink Ductor Lockout Lever must lock out the Ductor Roller when in the OFF position Rotate the cam to the center point of the low in relation to the truck Figure 5 27 2 Loosen the nut on the Truck and Stud Assembly Figure 5 28 3 Rotate the stud on the Truck Assembly until a clearance of 051 1 30mm is achieved between the truck and the center of the low on the cam Figure 5 27 Tighten the nut and stud being sure that the stud does not rotate while the nut is being tightened 5 When the Ink Ductor Latchout Lever is in the OFF position the Ink Ductor Roller should re
53. e Manual 4 13 Service Reference Manual 10 Install the Cylinder Adjusting Tool P N 191551 11 Completely remove the two set screws 1 from the collar J located inside the Impression Cylinder Remove the C Ring L located on the Impression Cylinder Shaft M Figure 4 15 12 Remove the Impression Cylinder Shaft M from the operator side Installation Install the Impression Cylinder in the reverse order of removal Note the following during installation 1 Install the collar J inside the Impression Cylinder with the beveled end facing the operator side 2 Install the heavier of the two springs on the bottom of the Master Cylinder Link D FIGURE 4 15 4 14 9970 9970D Service Reference Manual Service Reference Manual CHAIN DELIVERY Removal NOTE The machine should be in time before removing the Chain Delivery and the Impression Cylinder should be protected with a Cleanup Mat 1 Remove the following a b Upper operator side cover Lower operator side cover Upper non operator side cover Chain Delivery covers both sides Dolly Position the paper stop all the way back towards the receiving end Remove the Paper Guides A Figure 4 16 NOTE For easy removal of the Paper Guides position the Gripper Bars so one is directly over another and the third is in the Impression Cylinder 4 6 Remove the three Gripper Bars Release the pressure on both
54. e greasing springs and spring rods the existing lubricant must be removed When applying new grease use it sparingly and only atthe hook ends of the spring NOT ON THE BODY OF THE SPRING Support Arm Springs Lightly grease the entire spring Gears All gears should be lubricated using Multilube A Lubriplate Care should be taken to keep gears clean and free of all abrasives Drive Motor The drive motor has sealed bearings and does not need lubrication Vacuum System The vacuum pump is an oil less type and does not need lubrication Levers and Links Use Multilube Lubriplate sparingly at the following points on levers and links slots points of contact between levers and points of contact between levers and studs Use oil atthe pivot points of levers and links Shafts and Rollers Oil all shaft and roller bearings inside and or outside the operator and non operator side frames Table Raising Assembly Oil between the adjusting sprockets and frame oil the four trucks on the table grease the chains and channels Master Cylinder Head clamp oil hinge and adjustment screws Tail clamp oil hinge pins and lock screws Solenoids Oil the related linkages 9970 9970D Service Reference Manual Service Reference Manual SECTION 7 SCHEMATICS ASDICK 9970 9970D Service Reference Manual 7 1 I 2 2
55. e lubrication points can be made accessible only by turning the handwheel manually until they are exposed NOTE Residue of paper dust ink and other foreign materials should always be removed from Gears working Levers Shafts Trucks and mechanisms before new lubricants are applied This will prevent undue wear caused by abrasive action from this residue material Areas around or adjacentto lubricated parts and surfaces should also be free of dust and foreign material A Lubrication Intervals Initial lubrication is essential within the first 30 hours of operation Regular lubrication should be performed every 30 days on machines that operate 30 to 49 hours per week B Lubricants Oils A B Dick Action Precision Oil P N 191511 or S A E No 20 non detergent engine oil S A E No 10 high detergent engine oil Grease Multilube A Lubriplate P N 195553 9970 9970D Service Reference Manual 6 3 Service Reference Manual C General Lubrication Instructions Follow these general guidelines when lubricating machines 1 10 11 6 4 Cams and Trucks Cam surfaces should be cleaned and oiled lightly Trucks should be inspected for wear and replaced if necessary Trucks must be oiled sparingly making certain the oil reaches the inside bearing surfaces Check to see that the trucks rotate freely after lubricating Springs and Spring Rods Except Support Arm Springs Springs and spring rods should be greased lightly Befor
56. e non actuated position When the guards are lifted both switches must be actuated and the actuator should have overtraveled the trip point by approximately 1 64 4mm 2 There should be free travel left in the actuated position for the switches so the actuator does not press directly on the closed switch mechanism 3 If the switches do not meet the above specifications loosen the two mounting screws and adjust the switches to specs Tighten the screws and recheck the adjustment INK GUARD SWITCH CLOSEST TO SIDE FRAME AQUAMATIC GUARD SWITCH FARTHEST FROM SIDE FRAME BLANKET CYLINDER GUARD SWITCH ON OPERATOR SIDE FIGURE 5 46 IMPRESSION CYLINDER GUARD SWITCH VIEW FROM NON OPERATOR SIDE FRAME GUARD SWITCH ILLUSTRATION SWITCH ACTUATOR CAM FIGURE 5 47 SWITCH MOUNTING SCREWS 9970 9970D Service Reference Manual 5 55 Service Reference Manual Side Jogger Check If all parts are to specifications and have not been abused the operator side and non operator side side joggers should be parallel to the chain delivery side frames and each other within 1 32 Using a 6 machinist s scale and checking from the machine surfaces on the joggers check that the side joggers meet these parallel specifications Chain Delivery Guard Microswitch Adjustment With Guards 1 2 and 3 in the closed position as shown Switches 4 5 and 6 must not be actuated by the Cams Immediatelly after the Guards are lifted the S
57. ear 15 clockwise until the Waver Cam surface contacts the roller 16 and removes the slack from the Waver Operating Lever 17 The hole in the Waver Cam and Gear should be at approximately twelve o clock 12 00 You are removing the time lag in the Waver Arm for changing direction of the Oscillator Rollers 9970 9970D Service Reference Manual 5 31 Service Reference Manual 9 8 7 OPERATOR S SIDE FIGURE 5 26 5 32 9970 9970D Service Reference Manual Service Reference Manual 7 Turnthe Drive Gear 10 in a clockwise direction to position the Ink Ductor Cam 13 so the Ductor Lever Truck just precedes the high hole in the cam will be at nine o clock 9 00 when viewed from the non operator side Engage the Drive Gear 10 and the Waver Cam and Gear 15 Double check the relation of the Ductor Truck 14 and the cam 13 Relocate if necessary 8 Holding the Drive Gear 10 in place replace the Cam Shaft Gear 2 and the taper pin 1 NOTE If the Taper Pin Hole in the Gear and Shaft is not easily accessible insert an allen wrench or some substitute in the holes to maintain the relation and turn the Handwheel for a convenient position Replace the Operating Link 9 washer 8 and retainers 7 9 Check that the required functions are met a The Aquamatic Oscillator and the Lower Form Oscillator Roller must change direction when the Upper and Lower Form Rollers are in the open area of the Master Cylinder b Th
58. en the grippers and the Cylinder Anvil Turn the handwheel until the grippers are in the normally closed position making sure the paper is up against the Paper Stop Turn adjustment screw A counterclockwise until very light contact is made with the grippers on the sheet Turn the adjustment screw 1 1 2 turns counterclockwise Insert a 4 wide sheet of 20 Ib paper under each gripper segment and check for 2 1 2 Ib to 4 Ib pull underneath each of the segments Adjust the 3 32 Allen screw A as necessary to obtain the correct pull If you are unable to obtain a 2 1 2 Ib to 4 Ib pull on both sides repeat Step s 8 through 11 NOTE Excessive tension will cause premature wear and overloading when feeding card stock GRIPPER FINGERS FIGURE 5 15 5 20 9970 9970D Service Reference Manual Service Reference Manual TABLE RAISING LATCH To maintain the proper paper feeding level the Table Raising Latch Lever must engage and disengage the Table Raising Pawl 1 Locate the Power Lever 1 outside of the operator side frame behind the Table Raise Gear 2 Figure 5 16 2 Turn the handwheel until the Power Lever 1 is set at its maximum forward position 3 Loosen the screws 3 and adjust the Regulator Plate 4 so the Latch Lever 5 clears the Pawl Lever 1 by 1 16 Use the 0606 Flat Feeler Gauge 6 held flat against the anvil 7 4 Tighten the screws 3 NOTE Paper Height Control Lever must be i
59. eting of gear 12 The feed level of the table 5 may be changed by moving the Table Raise Lever 19 Lever 19 changes the stroke of the Paper Height Regulators 7 This controls when lever 10 is permitted to turn gear 12 The Trip Bracket 20 restricts the table 5 from raising too high and damaging the machine The Trip Bracket 20 raises lever 21 to prevent lever 25 from rotating preventing the Paper Height Regulators 7 downward movement This action does not allow lever 10 to turn gear 12 NOTE When Lever Stop 22 is raised by the Table Raise Acceleration Knob on the inside of the operator side frame Pawl 11 turns Gear 12 four teeth per revolution versus one tooth per revolution in normal mode 9970 9970D Service Reference Manual 2 23 Service Reference Manual AIR AND VACUUM SYSTEM PURPOSE Controls the air and vacuum for use in paper feed FUNCTION Air is drawn into the system through the Suction Feet the Vacuum Make and Break Valve and the Vacuum Adjustment Valve Figure 2 20 The compressor pumps air through the Blower Tubes and out the holes in the Paper Height Regulators and out through the Air Adjustment Valve Compressor Motor FIGURE 2 20 Make and Break Valve E OF Suction Tube s Blower Tubes 2 7 2 2 24 9970 9970D Service Reference Manual Service Reference Manual NOTES 9970 9970D Service Reference Manual 2 25 Service Reference
60. gain 8 Create an output jam Push the Stop Key to stop the machine Cover the output sensor 9 Setthe machine speed to 4000 IPH Push the jam Off Key The Jam Off LED shall come on Push 10 11 12 13 14 the Drive Key and then Push the Feed Key The machine shall start feeding paper After a few sheets are fed push the Jam Off key The jam Off LED shall turn off The FEED and PUMP shall turn off and the machine shall stop The display shall read CLEAR OUTPUT JAM Open the guards Clear the output jam and close the guards Push the Guard Reset Switch The display shall read CLEAR OUTPUT JAM Push C The display shall read PUSH DRIVE Push the Drive Key and the machine shall start Push the Feed key and the machine shall start feeding again Doubles Test 1 While the machine is feeding rotate the Doubles Detect Knob counterclockwise until the Doubles Detector is engaged The Alarm Lightshall go on andthe display shall read CLEAR DOUBLE The machine shall stop feeding but still run Rotate the Doubles Detect Knob approximately 1 4 clockwise Push C The display shall read COUNT Repeat Step 1 if necessary 3 Turn off the feed and drive 9970 9970D Service Reference Manual 3 5 Service Reference Manual Sheet Count and Totals Test 1 Clear the daily total Push the Stop Key then 1 The display shall read DAY SHT XXXXX Push C The display shall read DAY SHT 0 Push
61. gure 2 2 PURPOSE Controls ink transfer from the Ink Fountain to the master or plate FUNCTION Gear 1 rotates clockwise moving link 2 and pivoting the Ratchet Lever 3 upward With lever 4 lifted on lever 3 and pawl 5 advance the teeth of ratchet 6 Ratchet 6 turns the Ink Fountain Roller 7 transferring ink from the Ink Fountain 8 to the Ink Fountain Roller 7 and Ductor Roller 9 When the truck 10 reaches the high of cam 11 which is pinned to the gear 1 shaft the Ink Ductor Roller 9 moves out of contact with the Ink Fountain Roller and pivots into contact with the Distributor Roller 12 Ink is then transferred from the Distributor Roller 12 to the Rider Roller 13 the Upper Oscillator 14 the Rider Roller 15 the Main Ink Oscillator 16 the Upper Form Roller 17 the Lower Form Roller 18 the Auxiliary Form Roll Oscillator 19 andtothe Auxiliary Form Roller 20 Thethree Form Rollers 17 18 20 transfer ink to the master or plate on the Master Cylinder 21 The Ink Bridge Oscillator 22 provides additional ink milling FIGURE 2 2 9970 9970D Service Reference Manual 2 3 Service Reference Manual PIVOT POINTS FIGURE 2 3 2 4 9970 9970D Service Reference Manual Service Reference Manual INK RATCHETING ON OFF Refer to Figure 2 3 PURPOSE A Allows the Ink Fountain Roller to ratchet during duplication while the Master Cylinder is latched B Allows the Ink Fountai
62. h switch on the panel when depressed will cause the display to read that key s function The Feed and Proof Switches on the Chain Delivery can also be tested 3 To proceed to the next Test press the E key To exit diagnostics press the key Display 1 The LCD will display all letters numbers and symbols in its character set A group of characters will be displayed for three seconds before progressing to the next group Pressing the STOP key will stop the sequence from progressing Pressing the SPEED key will cause the sequence to continue 2 To proceed to the next test press the E key To exit diagnostics press the key Motors 1 The Drive and Pump Motors will be activated one at a time in sequence Pressing the STOP key will stop the sequence from progressing and leave the same motor on The Pump motor will cycle seconds on and 3 seconds off and the Drive Motor will stay on continuously Pressing the SPEED key will cause the sequence to continue 2 To proceed to the next test press the E key To exit diagnostics press the key 9970 9970D Service Reference Manual 3 11 Service Reference Manual Feed Solenoid and Impression Solenoid 1 The Feed Solenoid will be activated 3 seconds on and 3 seconds off 2 To proceed to the next test press the E key To exit diagnostics press the key Sensors 1 The following sensors will be monitored Sync Clock Jam Doubles Detect Low Paper
63. he shim as in Step 7 continue checking all of the Rider Roller positions until Rider Roller Assembly with shim in place no longer has a tight fit After all the Rider Roller positions have been checked tighten the adjusting collars securely and remove the shim 5 36 9970 9970D Service Reference Manual Service Reference Manual 9 From Step 8 determine which Rider Roller position has the least amount of end play Using this position only repeat Step 7 for all the other Rider Roller assemblies 10 the Rider Rollers assemblies will now fit of the Rider Roller positions in a specific machine with minimum end play Replace all of the Ink Oscillator and Rider Rollers NEUTRAL POSITION NIGHT LATCH POSITION FIGURE 5 29 9970 9970D Service Reference Manual 5 37 Service Reference Manual UPPER AND LOWER INK FORM ROLLER PRESSURE To assure copy quality the Form Rollers must contact the master or plate under proper pressure NOTE Adjust the Form Roller End Play before making this adjustment 1 a eN Position the following Operation Control Lever to INK Form Roller Knobs to OFF Aquamatic Control to 45 Ink the ink roller system without the Auxiliary Form Roller Assembly installed in the machine Turn off the machine and attach a 4000 Series Master to the Master Cylinder Turn the handwheel until both Form Rollers are in a position where they can contact the master Adjust the four plates 1 Figure 5 30
64. heck that the Forwarding Roller A revolves freely with a minimum of end play Figure 5 23 2 Checkthat the tips of the adjustment screws B on both the operator and non operator sides are flush with the underside of the lower ears on the levers C If not adjust them 3 Turn the handwheel until the Forwarding Roller Carrier A is fully down in contact with the metal Forwarding Roller D and there is maximum clearance between the bottom of the adjustment screws B and the lower ears of the Forwarding Roller Operating Lever E 4 Adjust the screw on the non operator side Carrier Lever to obtain a 046 3 64 clearance between the screw and the lower ear of the Operating Lever E use right Angle Gauge P N 197058 5 Inserttwo 1 wide strips of 202 paper one on each end between the second rubber forwarding roller from the end and the metal forwarding roller Turn the handwheelto find the point at which the rollers release the non operator side strip of paper 6 Adjustthe operator side adjustment screw so both strips of paper release at the same time as the handwheel is turned Do not readjust the non operator side adjustment screw FIGURE 5 23 Nw 046 3 64 3 Nee 5 28 9970 9970D Service Reference Manual Service Reference Manual FEED CONTROL LATCH LEVER AND SOLENOID The Feed Control Latch must freely engage and disengage with its Stop Pin NOTE The Latch Lever must be in the FEED OFF position as
65. ion Control Lever FIGURE 4 5 9970 9970D Service Reference Manual 4 7 Service Reference Manual BLANKET CYLINDER Removal NOTE Protectthe Blanket Cylinder with an old Blanket and the Master and Impression Cylinders with Cleanup Mats while doing this procedure 1 Remove the keyboard operator side cover and Master Cylinder Safety Cover 2 Remove the Safety Switch A and its cover B Figure 4 6 FIGURE 4 6 4 8 9970 9970D Service Reference Manual Service Reference Manual Remove the Operation Control Lever Cam and PCB Assembly C Figure 4 7 Remove the operator side cam D key E and collar F Figure 4 8 Remove the Blanket Cylinder Pilot Screw G Remove the Raise Lower Plunger H by removing the screws and nuts shown Remove the Blanket Cylinder Bearing and Housing operator side Remove three screws and nuts as shown Do not remove the bearing from housing 8 Remove the Lower Tie Bar J NO oO 8 FIGURE 4 7 9970 9970D Service Reference Manual 4 9 Service Reference Manual 9 Remove the Master Cylinder Support Arm Bolts Figure 4 9 10 Move the Stop Blocks L so that the pins are out of the side frame Push the Support Arms down 11 Remove the Blanket Cylinder Shaft from the operator side Install the Shaft Pulling Tool P N 191573 on the operator end of the shaft M as shown Figure 4 10 12 Remove the Blanket Cylinder from the machine FIGURE 4 10
66. isplay will read SHT COUNT 12 Depress 3 Display will read SHT COUNT 123 Depress 4 Display will read SHT COUNT 1234 Depress 5 Display will read SHT COUNT 12345 Depress Display will read READY Shut power off After 3 seconds turn it back on Press the Guard Reset Switch The display shall read READY Depress SHEET COUNT Display will read SHT COUNT 12345 Depress Display will read READY Speed Set Test 1 cO amp D D Depress the Speed Key The display shall show the previously set speed Set the speed to 5000 IPH Depress E to enter the speed Push the Drive Key to start the Drive Motor When the Drive Motor reaches 5000 I P H the display shall read SPEED 5000 While the display shows SPEED 75000 depress the 3 Key The display shall read SET SPEED 3 Press the 0 Key three times then push to enter the speed The speed shall decrease to 3000 IPH The display shall read SPEED 3000 Depress the Stop Key to stop the machine Feed Proof and Alternate Feed Test 1 Push the Drive Key With the machine running push the Proof Switch on the Chain Delivery The display shall read PROOF and one sheet will be fed Push the Feed Key The feed solenoid and the pump motor will engage The machine will start feeding and counting Push the Feed Switch on the Chain Delivery The machine shall stop feeding an
67. k 4 00 positions Figure 5 4 13 With the Master Cylinder Lever latched and the heads of the Separator Pins in contact with the flats on the Gap Control Cams adjust screws D on both sides to obtain a 002 051 clearance between the screws and Stop Blocks Figure 5 3 Tighten the lock nuts and check the 1 39 64 26 0mm setting of the Support Arm Springs Readjust if necessary 14 Loosen the lock nuts and adjust eccentric screws H to obtain a 15 16 24mm space between the blocks Figure 5 4 15 Unlatch the Master Cylinder Lever and remove both Feeler Gauges from between the cylinders 16 Turn the handwheel until the Master Cylinder Lever is at its maximum back position Adjust screw to obtain 0 036 to 0 050 0 9mm to 1 3mm clearance between the Master Cylinder Lever and Latch Lever Tighten the nut at A NOTE The above are all preliminary adjustments and may need refining after taking a bead line between the Master Cylinder and a known good Blanket This check is made at the end ofthe Form Roller adjustment when the machine is inked 9970 9970D Service Reference Manual 5 9 Service Reference Manual MASTER CYLINDER LATCH LEVER 1 With the Impression Cylinder Lever latched draw the Impression Cylinder against the operator side frame by tightening the knob on the Cylinder Adjusting Tool P N 191551 2 Loosen the knob on the tool and position the Counter Operating Lever to o
68. main in full contact with the Distributor Roller at all times 6 To adjust turn the handwheel until the Ductor Cam is at its high point holding the Ink Ductor Roller against the Distributor Roller Loosen the screw C and move the top spring mounting stud toward the Ink Fountain until the excess movement on the Latchout Lever is removed Tighten the screw C Figure 5 28 7 Check to ensure that the Ink Ductor Roller fully contacts the Ink Fountain Roller Readjust if necessary FIGURE 5 27 1 OFF POSITION FIGURE 5 28 1 NUT 2 TRUCK 5 34 9970 9970D Service Reference Manual Service Reference Manual NOTES 9970 9970D Service Reference Manual 5 35 Service Reference Manual LATERAL INK FORM AND RIDER ROLLER Form Rollers must revolve freely with a 005 to 010 end play Rider Rollers must revolve freely with minimum end play NOTE The third Form Roller is not in the machine for this adjustment 1 Turn the Aquamatic Night Latch Lever 1 to the OFF NIGHT LATCH position and remove the Aquamatic Oscillating Roller from the machine Figure 5 29 2 Turnthe Upper Form Roller 2 to the OFF position and the Lower Form Roller 3 to the ON position 3 Check that the Operation Control Lever moves freely through all positions Return the Operation Control Lever to the NIGHT LATCH position AN CAUTION Do not force the Operation Control Lever 4 With the Operation Control Lever in NIGHT LATCH and the Fo
69. me every revolution Figure 5 6 NOTE On Receiving Tray models all timing marks of all gears come into time every seven revolutions of the Cylinders Cylinders come into time every revolution Figure 5 6A MASTER CYLINDER FIGURE 5 6 BLANKET CYLINDER NOTE CHAIN DELIVERY BUCKLE GEAR GEAR 360 MARK SINGLE MARK IDLER GEAR FOR CHUTE INSIDE IMPRESSION CYLINDER PINION GEAR VIEW FROM OUTSIDE FRAME NON OPERATORSIDE BUCKLE GEAR GEAR INSIDE FRAME FRAME MASTER CYLINDER FIGURE 5 6A BLANKET CYLINDER E vana S FUR CHAIN DELIVERY GEAR IMPRESSION CYLINDER DELIVERY ROLL GEAR VIEW FROM o BUCKLE GEAR NON OPERATOR SIDE 360 MARK 4306 FRAME GEAR IOUTSJOK FRAME 9970 9970D Service Reference Manual 5 11 Service Reference Manual FINAL MASTER AND IMPRESSION CYLINDER SUPPORT ARMS The Cylinder Support Arms must be fine tuned for even pressure and even gapping oarwon 8 9 10 11 12 Install a clean metal master Turn ON the machine Move the Operation Control Lever to the INK position and ink the entire master Move the Operation Control Lever to the NEUTRAL position Turn OFF the machine Gently turn the Master Cylinder Lever clockwise to make light contact with the blanket Once contact is made release the Master Cylinder Lever and turn the handwheel until the be
70. n Roller to ratchet while the Single Lever Control is inthe NEUTRAL position FUNCTION Plate 1 is pivoted left only when the Master Cylinder is not latched and the Single Lever Control is not inthe NEUTRAL position Stud 2 is lifted when lever assembly 3 is turned clockwise lifting 4 to keep it from advancing the teeth of the ratchet When plate 1 is positioned to the right stud 2 is not lifted allowing it to engage the teeth of the ratchet To allow ratcheting plate 1 is prevented from pivoting left by one of the following means A When the Master Cylinder is latched the Master Cylinder Lever 5 stays in the clockwise position holding up link 6 pivoting lever 7 and causing lever 8 to move plate 1 down to the right clockwise The plate 1 stays in that position until the Master Cylinder is unlatched When the Master Cylinder is notlatched the Master Cylinder Lever pivots back and forth Link 6 moves upwards and springs 9 move link 6 and lever 7 back down following the Master Cylinder Lever s pivoting action The levers 7 8 pivot plate 1 left and right The plate 1 pivots to the left as stud 2 comes up lifting it as described above B When the Single Lever Control 10 is moved from NIGHT LATCH position to NEUTRAL position the Sequence Control Cam 11 pulls Control Link 12 to the right pivoting lever 13 to a vertical position to hold up the stud 14 on lever 7 Lever 7 pivots
71. n the extreme up position FIGURE 5 16 9970 9970D Service Reference Manual 5 21 Service Reference Manual Microlateral Side Guide Micro Guide Plate must be properly adjusted for accurate registration NOTE Make sure that the Nylon Screw 1 is partially loose when turning the Adjusting Screw Do NOT overtighten any screws as it may bow the Guide Plate Figure 5 17 1 Movethe Microlateral Side Guide Assembly nextto the Non Operators Side of the machine and lock itin place by securing knobs 2 3 4 and 5 2 Using gauge square the face of the left hand guide plate with the front apron in both vertical and lateral planes by means ofthree lefthand side adjustment screws 6 Tighten screw 1 only enough to prevent movement of the Side Guide and check squareness FRONT APRON FIGURE 5 17 5 22 9970 9970D Service Reference Manual Service Reference Manual Paper Feed Guides For proper stacking and registration the Front Guides and Feed Table Hardware must be properly positioned 1 Set the Non Operator Side Front Guide 1 at the 8 1 2 graduation on Front Apron 2 Figure 5 18 Put a 1 4 thick 8 1 4 x 10 3 4 board on the Feed Table Supports not shown and load 8 1 2 x 11 20 Ib paper Locate the paper against the Front Apron 2 and the Non Operator Side Front Guide set the Operator Side Front Guide approximately 1 32 from the paper Position the Microlateral Guide 3 in contact with paper
72. ontacting the Main Ink Oscillator 6 Figure 2 6 NOTE To separate the Auxiliary Form Roll Oscillator 7 from the Lower Form Roller 5 the two Screws 8 are loosened FIGURE 2 6 2 8 9970 9970D Service Reference Manual Service Reference Manual OPERATION CONTROL HANDLE NIGHT LATCH TO NEUTRAL PURPOSE Places the Form Rollers in contact with the Main Ink Oscillator NOTE Placing the Operation Control Handle into Neutral position also activates Ink Fountain Roller Ratcheting as described in previous section Ink Ratcheting On Off FUNCTION When the Operation Control Handle 1 is moved from NIGHT LATCH to NEUTRAL link 2 pivots lever 3 and the Night Latch Shaft 4 counterclockwise Shaft 4 turns cams 5 Cams 5 permitthe Form Roller Levers 6 to move the Upper 7 and Lower 8 Form Rollers into contact with the Main Ink Oscillator 9 Figure 2 7 FIGURE 2 7 locked in place 9970 9970D Service Reference Manual 2 9 Service Reference Manual OPERATION CONTROL HANDLE NEUTRAL TO INK POSITION PURPOSE Places the Form Rollers in contact with the Master or Plate NOTE Moving the Operation Control Handle from NEUTRAL to INK position also deactivates Ink Fountain Roller Ratcheting as described in previous section Ink Ratcheting On Off FUNCTION When the Operation Control Handle 1 is moved to INK link 2 pivots lever 3 and shaft 4 counterclockwise Shaft 4 turns cams 5 C
73. orm Rollers for proper release Readjust slightly if necessary Move the Operation Control Lever to put the Detent Lever Adjustable Truck in the INK position Figure 5 11 Loosen the socket head cap screw Rotate the eccentric disc to bring it in contact with the lower edge of the Control Link Tighten the cap screw Move the Operation Control Lever to the IMAGE position and then back to the INK position The eccentric disc should smoothly raise the Control Link in and out of the slot in the cam Readjust the eccentric disc if necessary for smooth operation Move the Operation Control Lever to put the Detent Lever Truck in the IMAGE position Loosen the set screws in the Sensor Plate Assembly and rotate the PC Board until the Sensor Magnet lines up with the INK Sensor Gap at 020 to 030 and tighten the set screws Move the Operation Control Lever to the NEUTRAL and NIGHT LATCH positions The edges of the Sensor Magnet should over lap or line up with the edges of the other Sensor Chips and the Sensor Magnet should not come in contact with the Sensors Readjust the Sensor Plate Assembly if necessary 9970 9970D Service Reference Manual 5 17 Service Reference Manual FRONT PAPER GUIDES The Front Paper Guides must be aligned for good register and proper alignment of the paper pile Remove the chains 1 on both sides Figure 5 12 2 Turn the sprockets 2 on both sides until the Paper Guides 3 are at a 90 angle with the Pape
74. r Supports 4 The dimension between the Paper Guides 3 at the top may be no more than but may be 1 16 less than the dimension between the guides at the bottom 3 Replace the chains 1 on both sides 4 Loosen the two screws 5 on both sides in the Sprocket Bracket 6 Adjust the brackets 6 for a 3 4 stack at the center of the chains Tighten the screws 5 on both sides i 1 8 FIGURE 5 12 5 18 9970 9970D Service Reference Manual Service Reference Manual PAPER BUCKLE For good register and to prevent misfeeding the Paper Buckle Gear must properly forward paper to the Impression Cylinder Grippers 10 11 Set Buckle Control at 0 Check that the 360 Timing Mark on the Buckle Gear 1 and the dot on the Pinion Gear 2 are aligned See Figure 5 13 Loosen the locking screws 3 Preset the screws 4 and 5 for a 3 16 clearance between the cam plate 6 and boss 7 of the gear 1 Check that the Main Control Switch located in the rear of the Control Box is in the ON position Momentarily depress the FEED and PUMP switches on the Control Panel This automatically energizes the Pump Motor and Feed Control Solenoid Manually feed a sheet of paper into the grippers until the grippers are fully closed and lever 8 just contacts but does the adjustment screw 9 on lever 10 The Upper Forwarding Roller 11 must remain in contact with the sheet of paper See Figure 5 1
75. r is in the neutral position Turn the machine on and ink up the Third Form Roller Turn off the machine Adjust the hex eccentrics D on the operator and non operator sides for the maximum inward position of the Third Form Carrier Arms toward the Master Cylinder Do this by turning the operator side eccentric counterclockwise viewed from inside the machine and the non operator side eccentric clockwise from inside Place the Operation Control Lever in the INK position and then return it to the NEUTRAL position The bead line forthe Third Form Roller must be 1 8 to 5 32 wide If not readjustthe hex eccentrics D and repeat this procedure After a satisfactory bead line is achieved and with the Form Roller Lever in the ON position and the Operation Control Lever in INK adjust the stud eccentrics A on the operator and non operator sides so they both just contact the carrier arms inside the machine Do this by turning the operator side eccentric clockwise and the non operator side eccentric counterclockwise Recheck the bead line as in step 11 Retighten bolts B and C FIGURE 5 33 5 42 9970 9970D Service Reference Manual Service Reference Manual PRINT RAISE LOWER STRIP When the Raise Lower Markis at 0 the copy 49 64 below the top of the holes on a pinbar plate should fall 1 2 from the lead edge of the paper Figure 5 34 On a pinbar metal plate expose a line exactly 49 64 below the top of the hole
76. re 2 21 TABLERAISE P M 2 23 AIFCANDVAGUUM SYSTEM beraten a t eese Rte 2 24 SECTION 3 ELECTRICAL OPERATION AND TEST PROCEDURES emen 3 1 CONTROL BOX LINE VOLTAGE INPUT CHANGES 3 2 Work lamp power requirements 3 3 PUMPMOTOR PULLEY CHANGE 3 3 ELECTRICAL COMPONENT TESTS ea cc tte ve diede pud eed med 3 4 Sheet Count Setup Test aeter eig iore b te ee RE 3 4 Speed Set CE 3 4 9970 9970D Service Reference Manual Service Reference Manual Feed Proof and Alternate Feed Test 3 4 Emergency Switch Test tira debba rea b eed er Euh 3 5 Jam Testeresi E 3 5 Doubles TSS E 3 5 Sheet Count and Totals Rests oerte 3 6 Guard Bypass Service Switch Test 3 6 CALIBRATION PROGRAM goat deser E ec 3 8 Low Paper Sensing Switch sceau ict ERI ep cen cele iani e 3 8 Chain Delivery Test are des o te be e e e dedi a aditu d D 3 8 Clock and Sync Wheel ree nete eta A eite x e 3 9 Paper Input Serisor t tae a 3 9 Doubles Detector Switch Adjustment 3 9 DC Motor Speed Control Calibration 2 3 10 DIAGNOSTICS PROGRAM a
77. replacing swivel up the motor to remove and replace it Lower the motor The weight of the motor will provide the proper tension to the belt Tighten screws A The belt should deflect 9 32 with a force of 2 0 to 2 6 Ibs applied Readjust the motor if necessary to attain the proper tension gt gt FIGURE 5 44 9 32 BELT DEFLECTION WITH 2 0 2 6 LBS APPLIED FORCE DRIVE MOTOR PULLEY 9970 9970D Service Reference Manual 5 53 Service Reference Manual DC POWER SUPPLY Exactly 5 2V DC must be supplied to the boards and relays 1 Turn the Main Power Switch ON Push in the Emergency Stop Button 2 Setthemetertothe 20V DC range and connectthe test leads to the terminals at the top of the Mother Board red to 5 2V DC and black to ground The voltage must read 5 15 DC to 5 20V DC Figure 5 45 If necessary adjustthe voltage by rotating the voltage adjustment pot located on the 5 DC Power Supply Figure 5 45 AN CAUTION Do not turn the Limit Potentiometer located to the right of the Voltage Adjustment Potentiometer It is factory calibrated and is not to be adjusted in the field FIGURE 5 45 5 54 9970 9970D Service Reference Manual Service Reference Manual SAFETY GUARD SYSTEM Guard Switches All guards have a permanently fastened Switch Actuator Cam The switches are mounted relative to the cam Figures 5 46 and 5 47 1 With the guards closed the switches should be in th
78. rm Rollers in the position described in Step 2 loosen the set screws inthe Non Operation Side Form Roller Levers and adjust and adjust the sleeve bearing on the Non Operator Side for a 005 to 010 13mm to 25 end play Retighten set screws and check that both rollers rotate freely NOTE There may be sufficient end play to allow the A Form Roller to spin freely but because of improper adjustment of the Eccentrics the Form Roller will drag on the Lower Oscillator Roller 4 This usually applies to the Lower Form Roller but both the Upper and Lower Roller action should be checked 5 Remove the Ink Oscillator Roller s 5 and the Rider Rollers from the machine 6 Dothe following to each Rider Roller Assembly Position a bearing at one end of the shaft against the retaining ring Place a 002 shim between the bearing and the collar holding the parts tightly against the retaining ring tighten the collar set screw and remove the shim 7 Place one Rider Roller from Step 6 in the machine at any position Position a 002 shim between the bearing and the loose collar Spread the collars apart at both ends of the shaft to remove all end play keeping the shim in place tighten the set screw of the loose collar 8 Usingthe same Rider Roller that was used in Step 7 reposition itin the other Rider Roller positions leaving the 002 shim in place If any other roller position is a tight fit for the bearings reset the collar next to t
79. rol Solenoid is the truck and lever 9 are permitted to follow cam 10 The truck and lever 9 move link 11 which pivots lever 12 Shaft 13 is turned by lever 12 Shaft 13 will pivot links 14 which move the Suction Feet Assembly 7 down The Suction Feet 8 will then lift up a sheet of paper and the horizontal movement will forward it to the crotch of the Forwarding Rollers The correct timing of the vertical and horizontal movement is controlled by the positions of cams 2 and 10 FIGURE 2 12 9970 9970D Service Reference Manual 2 15 Service Reference Manual PAPER FORWARDING PURPOSE Forwards paper to the grippers FUNCTION The Suction Feet 1 deliver asheetof paperto the crotch of the Forwarding Rollers 2 3 Spring tension holds the Forwarding Rollers together when lever 4 follows the low of cam 5 The Forwarding Rollers 2 3 deliver paper to the grippers The rollers are held together and the forwarding action continues until after the grippers are closed Figure 2 13 The Upper Forwarding Rollers 2 are lifted out of contact with the Lower Forwarding Rollers 3 when truck and lever 4 are on the high of the cam 5 FIGURE 2 13 2 16 9970 9970D Service Reference Manual Service Reference Manual PAPER BUCKLE CONTROL PURPOSE Ensures paper will be fed completely into the Impression Cylinder Grippers FUNCTION The Buckle Control 1 is turned causing lever 2 to pivot lif
80. s e pre eM unu 3 11 Membrane Panel cc 3 11 Display OM 3 11 ete eee arr Anat 3 11 Feed Solenoid and Impression Solenoid 3 12 SB TBOFS Der A Lo uvas Qo tin us 3 12 SECTION 4 DISASSEMBLY ASSBMBLY UE 4 1 GENERAL DISASSEMBLY REASSEMBLY INSTRUCTIONS 4 2 MAS TERIGVEINDER sine en end tt iunc US dotum ue 4 4 BLANKET GY EIN DER seek 4 8 IMPIRESSIONGYEINDIEE St obe e eost dic 4 12 CHAINIDELIV ERY tnde det 4 15 SECTION 5 ADJUSTMENTS ao fatigat d dd attico tT tudes 5 1 INTRODUCTION TO ADJUSTMENTS iii 5 2 IMPRESSION CYLINDER SUPPORT ARM LEVER AND LATCH 5 4 MASTER CYLINDER SUPPORT ARMS AND MASTER CYLINDER LEVER 5 7 MASTER CYLINDER LAT GH LEVER entrant et ennemies 5 10 tu decane 5 11 FINAL MASTER AND IMPRESSION CYLINDER SUPPORT ARMS 5 12 MASTERCYLBINDBRGDAMPB SH M aa tb nt ode notus 5 14 CLAMP SUBASSEMBLY TO MASTER CYLINDER sise 5 15 SINGLE LEVER CONTROL DETENT ECCENTRIC DISC AND HALL EFFECT PC BOARD 5 17 FRONT PAPER GUIDES ic ciate trt
81. s in the plate Attach the plate and duplicate copies Measure the line of copy from the lead edge of the sheet This line should be 1 2 from the lead edge Adjust the Print Raise Lower Control to obtain copy 1 2 from the lead edge Set the Raise Lower Plastic Strip with its center gradation line on the 0 mark of the Ring Gear Strip Drive the two rivets home RAISE LOWER MARK FIGURE 5 34 9970 9970D Service Reference Manual 5 43 Service Reference Manual MACHINE TO CLOCK SYNC MECHANISM TIMING The Synchronization Sensor must be timed to correctly synchronize the electronic and mechanical functions of the machine 1 Align all the machine timing marks Make sure the tooth on the Impression Cylinder Gear is exactly in the center of the tooth space in the Blanket Cylinder Gear 2 Loosen both set screws 4 on the Hall Effect Disk Shaft Figure 5 35 3 Rotate the Hall Effect Disk so that the hole in the wheel is centered over the Sync Sensor 2 located on the P C Board 4 Setthe gap between the Hall Effect Disk and the sensor to approximately 030 76 Tighten both set screws CLOCK SENSOR SYNCHRONIZATION SENSOR SYNCHRONIZATION LED SET SCREWS FIGURE 5 35 HALL EFFECT DISC 5 44 9970 9970D Service Reference Manual Service Reference Manual NOTES 9970 9970D Service Reference Manual 5 45 Service Reference Manual CHAIN DELIVERY ADJUSTMENTS Chain Adjustments
82. s is 25 32 1 64 19 4mm to 20 2mm Figure 5 2 Finger tighten the nuts at D 3 Adjust the Impression Cylinder Support Arm Springs to 1 31 64 37 7mm 4 Loosen screw B on the Impression Cylinder Lever on the non operator side of the machine 5 Loosen adjusting screw A on the Impression Cylinder Lever NOTE The throw of the Eccentric Stud must be placed in the longest position from the center of the Actuating Lever Do not make adjustments with the throw in the shortest position 6 Remove the spring Tru arc ring washer and link arm from the Counter Operating Lever on the operator side of the machine 7 Install the Cylinder Adjusting Tool P N 191551 on the Impression Cylinder Shaft and using the locking knob draw the Impression Cylinder to the operator side Push the Cylinder Shaft to the non operator side of the machine Shoulder the Support Arm against the frame shoulder the Impression Cylinder Lever against the Support Arm and position it so it will be latched by the Latch Lever Loosen the locking knob on the Cylinder Adjusting Tool NOTE The truck of the Forwarding Roller Lifting Shaft must remain on the Impression Cylinder Cam 5 4 9970 9970D Service Reference Manual Service Reference Manual FIGURE 5 1 QU 1 COUNTER OPERATING LEVER 005 to 008 1 31 64 mM FIGURE 5 2 9 VIEW FROM NON OPERATOR SIDE IMPRESSION CYLINDER LATCHING SOLENOID GAP CONTROL KNOB OPER
83. shown in Figure 5 24 Turn the handwheel until the sucker feet are in the extreme up position 2 Adjust the eccentric stud a Loosen the locknut inside the operator side frame so the eccentric stud can be turned b Adjust the eccentric stud on the outside of the side frame to its lowest position to attain the largest possible gap Rotate the stud clockwise so that the Latch Lever clears the Stop Pin by 3 64 046 d Hold the Stop Bracket in contact with the Mounting Bar at Point A and tighten the locknut on the eccentric stud 3 With the Latch Lever holding the sucker feet in the up position loosen screws B and adjust the Feed Control Solenoid to the top of the slots in the mounting bracket Tighten the screws B FIGURE 5 24 FEED CONTROL SOLENOID PAPER GUIDE STOP ECCENTRIC STUD STOP BRACKET LATCH LEVER 9970 9970D Service Reference Manual 5 29 Service Reference Manual VACUUM MAKE AND BREAK LINK The Vacuum Make and Break Link must be properly adjusted to assure proper feeding 1 Turn the handwheel until the Vacuum Make and Break Cam 1 is in the low position as shown Figure 5 25 2 Loosen the nut of the eccentric pin 2 Adjust the eccentric pin 2 until the truck 3 clears the low of the cam by 015 3 Tighten the nut on eccentric pin 2 NN N Low of Cam 015 Clearance FIGURE 5 25 5 30 9970 9970D Service Reference Manual Service Reference Manual AQUAMATIC OSC
84. switch Tighten the two screws C There must be some clearance between the stud F and the switch body for the stud to rest in the bottom of the frame slot B Readjust if necessary NOTE The Low Paper Sensing Switch is a Magnetic Reed Switch and actuation cannot be detected by feel or sound 6 7 Lift the Slide Assembly by hand to de actuate the switch The Alarm Light shall flash and the display should read LOW PAPER TEST Release the slide and the Alarm Light will go out The display will read CALIBRATION Chain Delivery Test 1 2 3 Push E on the Keyboard Lower the Receiving Dolly on the Chain Delivery until the display reads CHAIN DELVY FULL Raise the Dolly slowly The display shall read CALIBRATION 9970 9970D Service Reference Manual Service Reference Manual Clock and Sync Wheel 1 2 3 Push on the keyboard The display shall read SYNC amp CLOCK Turn the handwheel slowly counterclockwise until the display reads SYNC amp CLOCK 1 then continue turning It shall count and display as each clock magnet passes over the Hall Effect switch Count is reset to 0 by the sync sensor The system will count through only one revolution After testing press and the display shall read CALIBRATION Paper Input Sensor 1 2 Push E on the keyboard The display shall read CALIBRATION The Pump Motor and Feed Solenoid shall come on Turn the handwheel
85. t source to the center of the ON and OFF positions and tighten the mounting screws Figure 5 41 2 The LED should go OFF when the light source is covered and turn back ON when it is uncovered Use a 20 lb piece of paper to cover and uncover the light source several times Observe the LED for proper operation Readjust if necessary FIGURE 5 41 SENSOR UNIT INFRARED LIGHT MOUNTING SCREWS 9970 9970D Service Reference Manual 5 51 Service Reference Manual VACUUM PUMP PULLEY ALIGNMENT AND BELT TENSION The Vacuum Pump Belt must have the proper tension and alignment to avoid undue wear on the belt and the Pump Motor Remove the Belt Guard 2 Loosen the set screws in the Motor and Pump Pulleys Align the pulleys to 2 3 4 1 16 70 0mm x 1 6mm from the Front Cover Panel Tighten the set screws Figure 5 42 3 Loosen the motor mounting bolts Adjust the motor to allow a 1 2 1 8 12 7mm 3 2 deflection of the belt when approximately 1 Ib of force is applied to the belt midway between the two pulleys Tighten the motor mounting bolts Figure 5 43 4 Replace the Belt Guard 2 3 4 1 16 FRONT COVER PANEL FIGURE 5 42 SETS 3 TO oP FIGURE 5 43 5 52 9970 9970D Service Reference Manual Service Reference Manual DRIVE MOTOR BELT TENSION The Drive Motor Belt must have the proper tension to avoid undue wear on the belt and the Drive Motor Loosen screws A Figure 5 44 If the belt needs
86. ting links 3 and 4 When link 4 is moved up in the slot of lever 5 its stroke is increased Link 4 will increase the forward movement of levers 6 The Suction Feet 7 will then deliver the paper sooner to the Forwarding Rollers 8 Figure 2 14 FIGURE 2 14 9970 9970D Service Reference Manual 2 17 Service Reference Manual VACUUM MAKE AND BREAK VALVE PURPOSE To pick up and release the paper FUNCTION As the Suction Feet are lowered the truck and lever 1 move to the low of cam 2 Link 3 causes lever 4 to close the valve 5 opening Suction is caused when valve 5 is closed causing the top sheet of the paper to be lifted When the sheet of paper has been forwarded to the Forwarding Rollers valve 5 is opened The opening of valve 5 breaks the vacuum which causes the Suction Feet to release the sheet Figure 2 15 FIGURE 2 15 2 18 9970 9970D Service Reference Manual Service Reference Manual IMPRESSION CYLINDER PAPER GRIPPERS PURPOSE To grip paper and feed it to the Chain Delivery Grippers FUNCTION The paper is fed by the Forwarding Rollers into the grippers 1 and against the Paper Stops 2 Figure 2 16 As the Impression Cylinder turns truck 3 moves to the high of the Gripper Cam 4 Truck 3 pivots the lever 5 pivoting the Lever Assembly 6 closing the grippers 1 on the lead edge of the paper As the Impression Cylinder keeps turning the truck 3 moves to the low of the cam
87. to feed paper and trip the Paper Input Sensor The Alarm Light will blink and the display shall read PAPER DETECT TEST Advance the paper between the cylinders and leave it there Push so the Alarm Light goes out and the display reads CALIBRATION The Pump Motor and Feed Solenoid shall go off Doubles Detector Switch Adjustment 1 Push on the keyboard The display shall go blank There should still be paper in between the cylinders Rotate the Doubles Detector Knob counterclockwise until the Doubles Detector Switch is engaged The Alarm Light shall blink and the display shall read DOUBLES TEST Rotate the Doubles Detector Knob approximately 1 4 turn clockwise The Alarm Light must go off and the display must go blank If not turn the knob 1 4 turn clockwise again until they do Push the C key The display shall read CALIBRATION 9970 9970D Service Reference Manual 3 9 Service Reference Manual DC Motor Speed Control Calibration If the maximum or minimum speeds are not satisfactory if the controls have been repaired or if the user wants any changes made the Speed Control PC Board pots can be adjusted as follows A WARNING USE A NONMETALLIC SCREWDRIVER TO ADJUST THE TRIM POTS SO THE SCREWDRIVER BLADE CANNOT SHORT THE CIRCUIT BY CONTACTING LIVE CIRCUITRY AND TO PREVENT ANY CONTACT WITH DANGEROUS OR FATAL VOLTAGES 1 Setthe MAX SPEED Maximum Speed trim pot on the Speed Control Board to the f
88. tu ue cunei e 1 4 SPECIFICATIONS etre t ER 1 5 SECTION 2 FUNCTIONAL OPERATION treten eae t aa aa e D 2 1 INTRODUCTION TO FUNCTIONAL OPERATION iii 2 2 DIRECT DRIVE SPEED Gd ret 2 2 INK ROLLER AND RATCHETING SYSTEMS sese eene nennen 2 3 INK RATGHETING ON OFT i t sion tu RE eR E RERUM E ERRARE Ted 2 5 SUPERAQUAMATIGCSYSTEN uen ons 2 6 99700 NON MOTORIZED CONTINUOUS DAMPENER 2 7 OPERATION CONTROL HANDLE 2 ra abate He Cp ceeds tee de meta deines 2 8 OPERATION CONTROL HANDLE IN NIGHT LATCH in 2 8 OPERATION CONTROL HANDLE NIGHT LATCH TO NEUTRAL eese 2 9 OPERATION CONTROL HANDLE NEUTRAL TO INK POSITION 2 10 OPERATION CONTROL HANDLE INK TO IMAGE seem 2 11 OPERATION CONTROL HANDLE FEED re eerte eter nei abra 2 14 PAPER lupe ae 2 15 PAPER FORWARDING uto sitet dier cuore eg uto adt Pp 2 16 PAPER BUCKLE CONTROL 2 17 VACUUM MAKE AND BREAK VALVE e eade dee trn 2 18 IMPRESSION CYLINDER PAPER GRIPPERS lite mes 2 19 IMPRESSIONGYLEINDEREATGFUING eot Ert peor ed pit meret 2 20 MASTER CYLINDERLATCHING ep EC he verte
89. uctor and Oscillator Rollers Return the Operator Control Lever to NEUTRAL AN CAUTION The proper separation must exist between the Aquamatic Ductor Roller and the Oscillator when the Aquamatic Control Lever is in the OFF position If the separation is not sufficient the Ductor Roller will contact the Oscillator and deliver unwanted solution into the system If the gap is too great you will be limiting the operating range of the Fountain Solution Delivery NOTE When the Upper Ink Form Roller Pressure Adjustment is made the relation between the Aquamatic Oscillator and the Aquamatic Ductor Roller will change The Aquamatic Adjustment should be rechecked and adjusted as necessary 5 58 9970 9970D Service Reference Manual Service Reference Manual AUTO LAUTO MANUAL 53 OF PS D FIGURE 5 49 OPERATION CONTROL LEVER 9970 9970D Service Reference Manual 9 59 Service Reference Manual AQUAMATIC DUCTOR LOCKOUT SYSTEM When the Operation Control Lever is in NEUTRAL the Aquamatic Ductor Roller must not be allowed to contact the Oscillator Also the Aquamatic Lockout System must lockout the Ductor in NEUTRAL and release the Ductor in INK 10 Attach a metal plate to the Master Cylinder Move the Operation Control Lever 1 to NEUTRAL Position the following Form Roller Knobs 2 to ON Aquamatic Night Latch Lever 3 to ON Aquamatic Control Lever 4 to full ON position and Aquamatic Lockout Lever 5
90. ull clockwise position Figure 3 2 2 Setthe MIN SPEED Minimum Speed trim pot to full counterclockwise position 3 Make sure the Module Voltage Select Switch is at the right 230 position This applies to Leeson Boards ONLY 4 Push the key on the keyboard Push the Drive key 5 Adjustthe R4 potentiometer on the board until the speed shown on the keyboard display reads between SPEED 10 000 and SPEED 10 300 6 Push the Stop Key to stop the motor The display will read READY NOTE Under no circumstances are the IR and CL trim pots on the speed control to be adjusted from their factory settings EPOT BOARD KBIC SPEED CONTROL BOARD ees aa lt R4 POTENTIOMETER Figure 3 2 3 10 9970 9970D Service Reference Manual Service Reference Manual DIAGNOSTICS PROGRAM The Diagnostics Program is used to enable various machine functions for troubleshooting The Diagnostics Program is entered by depressing the Stop Key followed by the 3 Key The program will perform its functions in the sequence shown in this section If a function is not needed press the E key to go on to the next function until you reach the one you need To exit the program press the key at any time during testing Membrane Switch Panel 1 Thedisplay should read READY Enter the Diagnostics Program as described above The display will read CHECK KEYS 2 Eac
91. untain solution from the dampener to the master or plate FUNCTION 1 Fountain solution flows from the bottle through the tubing to the filler valve assembly 1 see Figure 2 5 The solution fills the nip between the plate form roller and the metering roller when the fluid level reaches the bottom of the filler valve 1 Air flow is shut off and the further flow of solution is prevented 2 Thedampener is controlled through the operator control lever Movement of the lever in a clockwise direction rotates the eccentric dampener shaft 2 lowering the assembly into contact with the plate Water control is automatically increased with the speed of the press since the dampener is driven by the master cylinder Oscillating Roller Cylinder FIGURE 2 5 9970 9970D Service Reference Manual 2 7 Service Reference Manual OPERATION CONTROL HANDLE Once the duplicator has been set up to run the Operation Control Handle is used to perform the duplicating process It has five settings Night Latch Neutral Ink Image and Feed OPERATION CONTROL HANDLE IN NIGHT LATCH PURPOSE Separates the Upper and Lower Form Rollers from the Main Ink Oscillator so the Form Rollers do not develop flat spots during idle periods FUNCTION With the Operation Control Handle 1 in NIGHT LATCH the cams 2 on both the operator and non operator sides spread the levers 3 apart The levers 3 prevent the Upper 4 and Lower 5 Form Rollers from c
92. up if the table elevates too high or adjust the bracket down if the table does not elevate high enough Under power check that 7 32 1 16 clearance dimension is maintained 2 FIGURE 5 19 vanum gt ALICNING BAR 5 24 9970 9970D Service Reference Manual Service Reference Manual PAPER HEIGHT REGULATION The Paper Height Regulators must raise and lower to their proper levels 1 Turn the handwheel until the Paper Height Regulators 1 are at their lowest position Figure 5 20 2 Move the Paper Height Control Lever 2 so the regulators 1 are 3 8 from the bottom of the slot in the apron 3 3 Turn the handwheel until the Paper Height Regulators 1 are at their high position 4 Adjust the eccentric stud 4 so the regulators 1 are 13 16 from the bottom of the slot in the apron 3 Tighten the eccentric stud 4 FIGURE 5 20 9970 9970D Service Reference Manual 5 25 Service Reference Manual SUCTION FEET AND BLOWER TUBES Toassure proper feeding and accurate register the impression paper must be maintained atthe proper feeding height Set the Buckle Control to 0 The six Blower Hoses 1 are behind the front apron Position the Blower Hoses 1 3 8 from the end of the shoulder on each Blower Tube 2 Figure 5 21 Press the FEED key on the control panel Turn the handwheel until the Suction Tubes 3 are in their maximum down position Remove one rubber suction cup
93. very end of machine Operator side counterclockwise Non operator side clockwise NOTE If the bead line does not increase according to the chart when Screw 4 is turned the operator and non operator adjustment screws may be 180 out of alignment In this case turn Screw 4 to position the Form Roller at its maximum distance from the Master Cylinder then adjust according the chart f Recheck the bead line width Readjust if necessary g The eccentric screws 4 may be noe e or So indicate the high point of the eccentric Once satisfactory bead lines have been attained check the markings on the screws 4 The opposing screws 4 must be close to the same position on both sides of the machine or they are 180 out of alignment and need to be readjusted The markings on the upper adjustment screws should face upwards at approximately an 11 00 to 1 00 position The markings on the lower screws should be positioned down at approximately 5 00 to 7 00 9970 9970D Service Reference Manual 5 39 Service Reference Manual 8 Recheck the Operation Control Lever Detent adjustment NOTE If the Form Rollers are removed from the machine they must be identified so they cannot be interchanged Using a center punch and a small hammer identify the Form Rollers with center punch marks while still in the machine Put one mark on the operator side of the Upper Form Roller and two marks on the operator side of the Lower Form Roller
94. witches must be actuated by the Cams see Figure 5 48 If the Switches do not meet the above specifications adjust by performing the following steps 1 Loosen the two mounting screws for either or both switches 2 Adjust the switch es to specifications 3 Tighten the mounting screws for the switch es Switch Actuator Switch Mounting Screws Feed End View From N O S Receiving End FIGURE 5 48 NOTE All retaining screws used to hold the safety switches in place are pre coated with a thread locking material to prevent slippage once the switches are properly adjusted This is a regulatory agency requirement If these screws are removed for switch replacement newly coated screws must be installed to maintain the integrity of the locking material 5 56 9970 9970D Service Reference Manual Service Reference Manual Safety Guard System Test Once all the safety guards have been adjusted test them as follows 1 Ifthe GUARD RESET button is lit make sure all the guards are closed and push the GUARD RESET button The light shall go out Lift the Chain Delivery End Guard The Chain Delivery LED indicator and Guard Reset light shall come on Close the guard The LED shall go out Push the GUARD RESET button The Reset Light shall go out Flip back the Chain Delivery Front Guard and check it the same way Liftup the Ink Guard The Ink LED and Guard Reset Light shall come on Close the guard and the LED will go off Push the GUAR

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