service manual
Contents
1. 00000 74 128 00000 5 1 4 1 Remove three 3 screws from gear reducer assembly on drive end of pump head 5 1 4 2 Remove gear reducer assembly 5 1 4 3 Remove spiral retaining ring from internal groove in assembly housing 5 1 4 4 Remove gear reduction unit and thrust washer spacer 5 1 4 5 Remove clutch drive tang assembly 5 1 4 6 Remove thrust washer spacer from tang shaft of clutch drive tang assembly 5 1 4 7 Install thrust washer onto tang shaft of new clutch drive tang assembly 5 1 4 8 Install new clutch drive tang assembly gear reduction unit thrust washer and spiral retaining ring NOTE Be sure that clutch assembly is thoroughly lubricated with lube 40100312 5 2 5 1 5 5 1 4 9 Attach gear reducer assembly and tighten screws to 8 10 in Ib NOTE Mounting screws have a high low thread Be sure to reinstall them so that the screw threads enter the original threads in the plastic When properly engaged very little threading resistance will be evident until final seating Gear Reduction Unit Replacement 74 126 00000 74 128 00000 5 1 5 1 Follow procedure for Clutch Replacement above but do not remove or replace clutch drive tang assembly Cassettes 5 2 1 5 2 2 5 2 3 5 2 4 Tubing Retainer Replacement 5 2 1 1 Depress release tab and slide retainer out of cassette The large retainer can be removed by hand The small retainer requires the use of a pointed tool Also note that on the latchin2. the roller shafts in the rotor also to permit precise and consistent occlusion settings and pumping performance 34 Models 72 560 100 and 72 560 000 72 560 100 and 72 560 000 cassettes are designed to function with Manostat tubing links Occlusion adjustment indicators are included on the cassettes Using the incorrect indicator to set occlusion will result in over occlusion or under occlusion Over occlusion may cause pump roller damage by means of overheating the rollers and or tubing pull in into the pump head and or premature tubing wear Under occlusion will result in loss or reduction of pump performance 4 TROUBLESHOOTING Problem Tubing pulls in Clutch slips excessively 74 126 00000 and 74 128 00000 Does not pump Premature tubing wear Rotor does not turn Possible Cause 1 2 Occlusion too tight Damaged or worn tubing retainer 3 1 1 1 2 Roller support plates loose Frozen Pump Roller s Too much operating torque Tubing pulls in and jams Occlusion too tight Stiff rotor bearing s Defective clutch Insufficient occlusion Worn rollers Occlusion too tight Stiff or frozen roller s Tang broken or worn off on rotor shaft 3 Gear reduction unit damage 74 126 00000 and 74 128 00000 only 6 Corrective Action Instruct operator in proper technique Replace tubing retainer a Clean amp free up roller s or b Replace rotor assembly Inst
3. 0 1 INTRODUCTION Service for this product is performed at three levels user dealer and factory depot repair This manual describes level 2 dealer service procedures User service procedures are described in the operator s manual Users are encouraged to perform service as described in the operator s manual as well as in special circumstances where special skills and safety are not considerations To use this manual begin with the Troubleshooting section to isolate the fault to a replaceable part or specific repair The Functional Description and Checkout Procedure sections are also helpful in determining the fault Dealer repair is limited to procedures described in the Repair Procedures section and to replacement of modules identified in the Replacement Parts List section of this manual After repair the product should be checked for proper performance Please refer to the operator s manual A 1299 0814 for A Applications Data B Product Description C Installation D Setup E Operation F User Calibration G User Troubleshooting amp Maintenance H Accessories I Specifications 2 SAFETY CONSIDERATIONS Servicing must be performed only by personnel trained and skilled in the methods of troubleshooting and repair of mechanical products Use of procedures other than those described in this manual may result in a safety hazard to service personnel and or users 3 FUNCTIONAL DESCRIPTION 3 1 All Models The pump ro
4. 74 046 00000 74 126 00000 74 048 00000 74 128 00000 772 560 100 772 560 000 SERVICE MANUAL MODELS Carter Cassette Pump Head 4 6 Carter Cassette Pump Head 12 6 Carter Cassette Pump Head 4 8 Carter Cassette Pump Head 12 8 Carter Cassette Large Carter Cassette Small A WARNING PRODUCT USE LIMITATION These products are not designed for nor intended for use in patient connected applications including but not limited to medical and dental use and accordingly have not been submitted for FDA approval PROPRIETARY Information contained in this manual is proprietary to the BARNANT COMPANY division of COLE PARMER INSTRUMENT COMPANY INC No reproduction for other than the intended use of maintaining the product described herein is permitted without the permission of BARNANT Barnant Company 28W092 Commercial Avenue Barrington IL 60010 847 381 7050 847 381 7053 Fax 800 637 3739 A 1299 0831 EDITION 02 OA CN TABLE OF CONTENTS eee 3 SAFETY CONSIDERATIONS 4 FUNCTIONAL DESCRIP ION tend uu TS mate md loa 3 5 TROUBLESHOOTING cinien aeaiiai cae fas ca hi che ek A ek 6 REPAIR PROCEDURES msaare seitse massat 7 REPLACEMENT PARTS eee 9 CHECKOUT PROCEDURE Soda SITA TTT PT ahaa 1
5. URE 2 74126 00000 74 128 00000 PUMP ASSEMBLY 11 24 CLUTCH SPACER CLUTCHIDRIVE TANG ASSEMBLY GEAR REDUCTION UNIT SPIRAL RETAINING RING GEAR SPACER CLUTCHIDRIVE TANG FIGURE 3 ASSEMBLY GEAR REDUCER ASSEMBLY CASSETTE BODY gt TUBING RETAINER LATCH SPRING OCCLUSION 72 560 100 ONLY NOTCHED END TOWARD KNOB FIGURE 4 CASSETTE ASSEMBLY
6. g leg of the cassette it will be necessary to pull and hold the latch away from the leg 5 2 1 2 Install the new retainer Latch Replacement 5 2 2 1 Pry the snap hooks at the top of the damaged latch out of the cassette body and remove the latch 5 2 2 2 Snap the new latch into the cassette body Latch Spring Replacement 72 560 100 5 2 3 1 Pry side legs of latch spring apart to remove end tabs from cassette body and remove latch spring 5 2 3 2 Install new latch spring by inserting end tabs into pockets in cassette body Occlusion Bed Replacement 5 2 4 1 Slide occlusion bed out of open end of cassette body spreading cassette body legs slightly to permit removal 5 2 4 2 Install new occlusion bed into the cassette body taking care to align the end of the occlusion bed with the small notch in the top surface toward the adjustment knob side of the cassette assembly REPLACEMENT PARTS LIST End housing mounting screw Wave washer Rotor assembly 74 046 00000 Rotor assembly 74 126 00000 Rotor assembly 74 048 00000 Rotor assembly 74 128 00000 Finger guard 74 046 00000 74 048 00000 Finger guard 74 126 00000 74 128 00000 Rubber foot 74 126 00000 74 128 00000 Gear Reducer Assembly mounting screw Clutch drive tang assembly Clutch spacer Gear reduction unit Gear spacer Spiral retaining ring Occlusion bed 72 560 100 Tubing retainer 72 560 100 Retainer latch 72 560 100 Latch spring 72 560 100 Occlusi
7. on bed 72 560 000 Tubing retainer 72 560 000 Retainer latch 72 560 000 O ring B 1079 0403 B 1081 0111 D 2607 0001 D 2765 0001 D 2607 0002 D 2765 0002 B 2623 0001 B 3220 0002 A 1390 0005 B 1079 0320 B 3477 A 3577 B 2690 B 1081 0148 B 1508 0021 D 2602 5928 5927 A 3611 0012 D 2603 5924 5923 GB 2590 0002 7 CHECKOUT PROCEDURE 7 1 7 2 7 3 7 4 7 5 Check rotor to be sure it rotates freely Check all rollers to be sure they are free from nicks or other damage they rotate freely and can move end to end 010 030 Mount pump head onto Carter drive Models 74 126 00000 74 128 00000 Install four 4 channels of size 17 Tygon tubing links adjust occlusion to 3 on the scale and turn drive on Rotor must turn with no clutch slippage Models 74 126 00000 74 128 00000 Install six 6 channels of size 17 Tygon tubing links adjust occlusion to 3 on the scale and turn drive on Clutch must slip preventing rotor from turning DRIVE END HOUSING ROTOR OUTBOARD ASSEMBLY HOUSING a A i WAVE WASHERS pm MIN 2A END HOUSING MOUNTING SCREW FIGURE 1 4 PLCS 74 046 00000 74 048 00000 PUMP ASSEMBLY DRIVE END OUTBOARD ROTOR HOUSING HOUSING WAVE GEAR REDUCER WASHERS ASSEMBLY 9 BRACKET REDUCER MOUNTINO Gr PLoS a END HOUSING ORING FINGER MOUNTING SCREW GUARDS PLCS ANTETWIST PLATE FIG
8. ruct operator to reduce number size and or stiffness of tubing and or operating pressure See above Instruct operator in proper technique Replace rotor assembly Replace clutch Instruct operator in proper technique Replace rotor assembly Instruct operator in proper technique See above Replace rotor assembly or clutch drive tang assembly Replace rotor assembly Replace gear reduction unit 5 5 1 REPAIR PROCEDURES Pump Heads 5 1 1 Rotor Replacement 5 1 1 1 Remove two 2 screws from outer end of pump head 5 1 1 2 Remove outboard end housing and then o rings 5 1 1 3 Remove rotor assembly finger guard s and bottom support bracket 74 126 00000 74 128 00000 only simultaneously 5 1 1 4 Install new rotor assembly finger guard s bottom support bracket and o rings 5 1 1 5 Replace outboard end housing inserting the support rods 5 1 3 5 1 4 and anti twist plate 74 126 00000 and 74 128 00000 into their proper openings NOTE Be sure to replace the three 3 wave washers into the rotor bearing pocket and be sure the wave washers are nested together 5 1 1 6 Replace the screws and tighten to 8 10 in lb Finger Guard Replacement 5 1 2 1 Follow procedures 5 1 1 1 and 5 1 1 2 above 5 1 2 2 Replace the old o rings with new ones 5 1 2 3 Follow procedures 5 1 1 5 and 5 1 1 6 above O Ring Replacement 5 1 3 1 Follow disassembly procedure for Rotor Replacement above Clutch Replacement 74 126
9. tor is driven by a separate drive to pump fluid through tubing compressed or occluded between the rollers of the rotor and the curved surface of cassette 72 560 100 72 560 000 The rollers are made from a self lubricating PTFE filled plastic material and are turned by virtue of friction against the tubing The main rotor shaft is mounted in sealed ball bearings 3 2 Models 74 046 00000 and 74 048 00000 These models are driven directly from the drive at the same speed as the drive Operation must be operator limited to 250 rpm maximum to prevent overheating of the plastic rollers which can cause damage and loss of pump performance 3 3 Models 74 126 00000 and 74 128 00000 These models incorporate a 5 1 planetary gear reduction unit and a safety override clutch mounted in an added module at the drive end of the pump head The clutch prevents damage to the pump head and or drive unit in the event of a tubing jam or other obstruction to rotor rotation It is designed to release at 90 110 in oz torgue Pump operating speed is limited by the gear reduction unit to 1 5 drive speed or 40 rpm These models also incorporate a support bracket and an anti twist bar mounted on the underside of the pump head and a circular support plate in the center of the rotor The support bracket prevents deflection of the cassette mounting rods to permit precise and consistent occlusion settings and pumping performance The rotor support plate prevents deflection of
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