PSP FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2Z8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOC K-UP CONVERTER ARRANGEMENTS - PS0517 - MAILED US AND CANADA, COSA, LIMITED COFA - REVISED 01/92
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PSP FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2Z8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOC K-UP CONVERTER ARRANGEMENTS - PS0517 - MAILED US AND CANADA, COSA, LIMITED COFA - REVISED 01/92
NOTE: The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
March 26, 1991 (Revised January 1992) U-54 AU-34.1 O-42 PRODUCT SUPPORT PROGRAM FOR FAILED ONE-WAY CLUTCH COMPONENTS ON 988B LOADERS EQUIPPED WITH 2Z0989, 2Z8670, 2Z8786, 2Z8858, 2Z8859 OR 2Z8860 LOCK-UP CONVERTER ARRANGEMENTS 3101 PS0517 NOTE: This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0517" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code. NOTE: High particle count in the power train oil sample is considered a failure. NOTE: This Service Letter cancels and replaces the June 30, 1990 Service Letter - PS0465. NOTE: This Revised Service Letter replaces the March 26, 1991 Service Letter. Changes have been made to the Affected Product.
Termination Date
March 31, 1992
Problem
Components in the torque converter on certain 988B Wheel Loaders may fail. Engine torsional vibration can exert dynamic loads at the stator one-way clutch components of the torque converter. These loads can cause the carrier, cam, rollers, and thrust plates to become worn which can result in poor machine performance.
Affected Product
Model Identification Number 988B 50W1-10850 If equipped with a 2Z0989, 2Z8670, 2Z8786, 2Z8858, 2Z8859 or 2Z8860 Lock-Up Converter Arrangement.
Parts Needed
1 - 4B9371 Seal 1 - 5F3999 Seal 1 - 7G0141 Ring 1 - 4H6730 Seal 1 - 1L7205 Bearing 2 - 8M4433 Seal 1 - 9N1609 Seal 1 - 3P2573 Race 1 - 3P2574 R&R Assembly 1 - 8S3371 Ring 1 - 1T0132 Seal 1 - 1T0136 Seal 1 - 1T1423 Cam 13 - 1T0680 Spring 1 - 1T0771 Impeller - (Use only if required.) 1 - 1T0782 Turbine - (Use only if required.) 2 - 1T0786 Bearing 1 - 1T0794 Ring 2 - 1T0887 Disc Assembly - (Use only if required.) 3 - 1T1011 Shim 3 - 1T1012 Shim 1 - 1T1222 Gasket 2 - 1T1315 Plate - (Use only if required.) 1 - 1T1356 Ring 1 - 1T1359 Hub - (Use only if required.) 2 - 1T1395 Plate 13 - 1T1410 Roller 1 - 1T1815 Carrier Assembly 1 - 1T1834 Stator - (Use only if required.) 1 - 6V9191 Bearing - (Use only if required.) 1 - 4W8089 Damper Assembly 1 - 9W6990 Ring 2 - 6Y5888 Ring
Action Required
After failure remove and replace the damaged parts, replace all bearings and seals. See the Illustration. Remove the original 2P5149 Damper Assembly and install the new 4W8089 Damper Assembly. NOTE: Lubricate the threads of the bolts that hold the damper assembly with engine oil, molybdenum disulfide, or a graphite base lubricant before assembly. Assemble the converter using the 988B Service Manual and the Supplementary Product Support Literature For 988B Equipped With A Lock-Up Torque Converter (SEBF0573-01). ITEM NO. QTY PART NO. Description 1 1 1T0794 RING-SEAL METAL 2 1 1T0771 IMPELLER-CONV (Only if required.) 3 1 1T0867 PLATE-REINF 4 1 1T1227 GEAR-PUMP DRIVE 5 1 1T1224 HUB-IMPELLER 6 1 9W3136 RING-RETAINING 7 1 1T1659 SLEEVE AS 8 1 3P2573 RACE-BRG INNER 9 2 1T0897 RING-RETAINER 10 1 1T1657 CARRIER-BEARING 11 2 6Y5888 RING-SEAL 12 1 1T1220 CARRIER-RING 13 1 1T1856 RETAINER-BEARING 14 8 3S0127 BOLT-12 POINT HD 15 1 4B9371 SEAL-LIP TYPE 16 1 1T0136 SEAL-O RING 17 1 1T1006 RETAINER 18 1 8B5144 BOLT 19 1 1T1223 SHAFT-OUTPUT 20 3 1T1011 SHIM 21 3 1T1012 SHIM 22 1 9Z9429 ROTOR-SENSOR 23 1 9Z9427 FLANGE 24 1 1L7205 BEARING-BALL 25 1 1T1222 GASKET 26 1 1T1815 CARRIER AS 27 1 3P2574 RACE&RLR AS 28 1 1T1221 CARRIER-RING 29 1 9W6990 RING-SEAL 30 8 5P5855 BOLT-12 POINT HD 31 1 5F3999 SEAL-O RING 32 36 0S1588 BOLT 33 36 1T0689 WASHER 34 1 1T1452 HOUSING AS 35 1 1T0782 TURBINE-CONV (Only if required.) 36 1 1T0896 RING-RETAINING 37 1 6P9553 PLATE-CL BACKING 38 2 1T1315 PLATE-CLUTCH (Only if required.) 39 2 1T0887 DISC AS-CLUTCH (Only if required.) 40 1 7G0141 RING-SEAL 41 1 1T1426 PISTON-LOCKUP CL 42 1 1T0804 RING-CLAMP 43 1 1T1423 CAM-FREEWHEEL Parts List For Illustration 1 - Part 1 of 2 44 1 1T1359 HUB-TURBINE (Only if required.) 45 3 1T0795 RING-RETAINING 46 2 1T1395 PLATE-SIDE 47 2 1T0806 RETAINER-BEARING 48 6 0L1351 BOLT 49 1 6V9191 BEARING-BALL (Only if required.) 50 1 1T1236 PILOT-FLYWHEEL 51 1 1T1617 PLATE-RETAINER 52 2 8S4724 BOLT 53 1 1T0895 RING-RETAINING 54 1 1T1616 WASHER-SPRING 55 1 1T1356 RING-SEAL 56 1 1T0847 PIN-RACE LOCK 57 2 1T0807 RACE-THRUST BRG 58 2 1T0786 BEARING-THRUST 59 18 8M2530 BOLT-12 POINT HD 60 13 1T1410 ROLLER-FREEWHEEL 61 1 8S3371 RING-SEAL 62 1 1T1834 STATOR-CONVERTER (Only if req'd.) 63 13 1T0680 SPRING-FREEWHEEL Parts List For Illustration 1 - Part 2 of 2 ****** IMAGE: SEBE4547.01001.001 CAPTION: Illustration 1 - Location of Parts
Service Claim Allowances
Product Caterpillar Dealer Suggested Customer Suggested smu/age Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 0-4000 100% 21 0 0 0 0 0-48 mo 4001-8000 33 1/3% 10.5 50% 10.5 0 0 49-96 mo NOTE: This is a 21-hour job. NOTE: If there has been a previous repair, part age will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Caterpillar Information System:
PRIORITY - THE CASE AND FRAME ASSEMBLY NEEDS TO BE INSPECTED FOR TOOL MARKS FROM MACHINING OPERATIONS ON CERTAIN D5B TRA CTORS - PI3520 - MAILED US AND CANADA, BRAZIL - PLEASE NOTE THAT A LIMITED MAILING WAS MADE TO COSA FOR A SUPPLEMENT TO THIS S L PRIORITY - THE CASE AND FRAME ASSEMBLY NEEDS TO BE INSPECTED FOR TOOL MARKS FROM MACHINING OPERATIONS ON CERTAIN D5B TRA CTORS - PI3520 - MAILED US AND CANADA, BRAZIL - PLEASE NOTE THAT A LIMITED MAILING WAS MADE TO COSA FOR A SUPPLEMENT TO THIS S L
PRIORITY - GROUND WIRES ON CERTAIN D6H, D7H, AND D8N TRACTORS EQUIPPED WITH ROOF MOUNTED AIR CONDITIONER CONDENSERS NEED TO BE CHECKED FOR CORRECT GROUND WIRE INSTALLATION - PI3521 - MAILED US AND CANADA, LIMITED CACO PRIORITY - GROUND WIRES ON CERTAIN D6H, D7H, AND D8N TRACTORS EQUIPPED WITH ROOF MOUNTED AIR CONDITIONER CONDENSERS NEED TO BE CHECKED FOR CORRECT GROUND WIRE INSTALLATION - PI3521 - MAILED US AND CANADA, LIMITED CACO
PRIORITY - REINFORCING PLATES NEED TO BE INSTALLED ON THE DRAFT TUBES OF CERTAIN 631E AND 637E SCRAPERS - PI3525 - MAI LED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA PRIORITY - REINFORCING PLATES NEED TO BE INSTALLED ON THE DRAFT TUBES OF CERTAIN 631E AND 637E SCRAPERS - PI3525 - MAI LED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA
PSP FOR EXCESSIVE AIR SIDE PLUGGING OF FOLDED CORE RADIATORS IN 508 SKIDDERS - PS0488 - MAILED US AND CANADA, COSA, LIMITED COF A PSP FOR EXCESSIVE AIR SIDE PLUGGING OF FOLDED CORE RADIATORS IN 508 SKIDDERS - PS0488 - MAILED US AND CANADA, COSA, LIMITED COF A
PARTS STOCK ACTION ONLY - INSTRUCTION PLATES WITH PLASTIC COATING NEED TO BE REMOVED FROM PARTS STOCK - PI7255 - MAILED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA PARTS STOCK ACTION ONLY - INSTRUCTION PLATES WITH PLASTIC COATING NEED TO BE REMOVED FROM PARTS STOCK - PI7255 - MAILED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA
PSP FOR CORE CREDIT WHEN USING REMANUFACTURED 3161 GOVERNORS TO UPDATE D11N TRACTORS; 777B, 785, AND 789 TRUCKS AND 3508, 351 2, AND 3516 SPARE ENGINES - MAILED US AND CANADA PSP FOR CORE CREDIT WHEN USING REMANUFACTURED 3161 GOVERNORS TO UPDATE D11N TRACTORS; 777B, 785, AND 789 TRUCKS AND 3508, 351 2, AND 3516 SPARE ENGINES - MAILED US AND CANADA
SERVICE LETTER EXTENSION FOR FEBRUARY 25, 1990 SL - PS0434 - PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO RED UCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C E240, EL240, E300 AND EL300 EXCAVATORS; AND 963 AND 973 LOADER S - SERVICE LETTER EXTENSION FOR FEBRUARY 25, 1990 SL - PS0434 - PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO RED UCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C E240, EL240, E300 AND EL300 EXCAVATORS; AND 963 AND 973 LOADER S -
PSP FOR INSTALLING NEW FUEL LINES AND FUEL LINE BRACKETS ON CERTAIN 621S, 627E AND 637E SCRAPERS - PS4463 - MAILED US AND CAN ADA, CACO, COFA, CFEL PSP FOR INSTALLING NEW FUEL LINES AND FUEL LINE BRACKETS ON CERTAIN 621S, 627E AND 637E SCRAPERS - PS4463 - MAILED US AND CAN ADA, CACO, COFA, CFEL
Product Support Program For Repairing The Transmission On Certain 930R Wheel Loaders. Product Support Program For Repairing The Transmission On Certain 930R Wheel Loaders.
PSP FOR CERTAIN D6H AND D6H LGP TRACTORS EQUALIZER BAR CENTER PIN BEARINGS - PS4584 - MAILED US AND CANADA, CACO, COFS, CFEL, CO SA PSP FOR CERTAIN D6H AND D6H LGP TRACTORS EQUALIZER BAR CENTER PIN BEARINGS - PS4584 - MAILED US AND CANADA, CACO, COFS, CFEL, CO SA
PSP FOR INSTALLING AN AUTOMATIC ETHER INJECTION SYSTEM (AEIS) ON CERTAIN D11N TRACTORS - PS4429 - MAILED US AND CANADA, COFA, CO SA, LIMITED CACO, LIMITED CFEL PSP FOR INSTALLING AN AUTOMATIC ETHER INJECTION SYSTEM (AEIS) ON CERTAIN D11N TRACTORS - PS4429 - MAILED US AND CANADA, COFA, CO SA, LIMITED CACO, LIMITED CFEL
PRIORITY - PARTS STOCK ACTION NEEDED - NEW VALVE LOCKS NEED TO BE INSTALLED ON CERTAIN D4E, D5B, D6D, D6E, D8L TRACTORS; 930R, 96 6R WHEEL LOADERS; 120G, 140G MOTOR GRADERS; 621S SCRAPERS; 3306, 3408 ENGINES - PI3515 - MAILED BRAZIL PRIORITY - PARTS STOCK ACTION NEEDED - NEW VALVE LOCKS NEED TO BE INSTALLED ON CERTAIN D4E, D5B, D6D, D6E, D8L TRACTORS; 930R, 96 6R WHEEL LOADERS; 120G, 140G MOTOR GRADERS; 621S SCRAPERS; 3306, 3408 ENGINES - PI3515 - MAILED BRAZIL
PSP FOR REPLACEMENT OF THE EMS OIL PRESSURE SWITCH AND THE HOUR METER OIL PRESSURE SWITCH ON CERTAIN D8N, D9N, D10N, AND D11 N TRACTORS - PS4586 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR REPLACEMENT OF THE EMS OIL PRESSURE SWITCH AND THE HOUR METER OIL PRESSURE SWITCH ON CERTAIN D8N, D9N, D10N, AND D11 N TRACTORS - PS4586 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
SERVICE LETTER SUPPLEMENT FOR DECEMBER 24, 1990 SL - PI3500 - PRIORITY - THE BOLTS THAT HOLD THE DIFFERENTIAL PINION IN PLA CE MAY WORK LOOSE ON CERTAIN 623E WHEEL TRACTORS - MAILED US AND CANADA, COSA, LIMITED COFA SERVICE LETTER SUPPLEMENT FOR DECEMBER 24, 1990 SL - PI3500 - PRIORITY - THE BOLTS THAT HOLD THE DIFFERENTIAL PINION IN PLA CE MAY WORK LOOSE ON CERTAIN 623E WHEEL TRACTORS - MAILED US AND CANADA, COSA, LIMITED COFA
SERVICE LETTER SUPPLEMENT FOR FEBRUARY 27, 1991 SL - PS4429 - PSP FOR INSTALLING AN AUTOMATIC ETHER INJECTION SYSTEM (AEIS) ON CERTAIN D11N TRACTORS - MAILED US AND CANADA, COFA, COSA, LIMITED CACO, LIMITED CFEL SERVICE LETTER SUPPLEMENT FOR FEBRUARY 27, 1991 SL - PS4429 - PSP FOR INSTALLING AN AUTOMATIC ETHER INJECTION SYSTEM (AEIS) ON CERTAIN D11N TRACTORS - MAILED US AND CANADA, COFA, COSA, LIMITED CACO, LIMITED CFEL
PRIORITY - NEW SUN GEAR NEEDS TO BE INSTALLED IN THE TRANSMISSIONS OF CERTAIN 518 AND 528 SKIDDERS - PI3542 - MAI LED US AND CANADA, COSA, LIMITED COFA PRIORITY - NEW SUN GEAR NEEDS TO BE INSTALLED IN THE TRANSMISSIONS OF CERTAIN 518 AND 528 SKIDDERS - PI3542 - MAI LED US AND CANADA, COSA, LIMITED COFA
PARTS STOCK ACTION ONLY - 2W6395 IDLER GEAR FOR USE IN 992C REAR GEAR TRAIN NEEDS TO BE REMOVED FROM PARTS STOCK - PI7263 - MA ILED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA PARTS STOCK ACTION ONLY - 2W6395 IDLER GEAR FOR USE IN 992C REAR GEAR TRAIN NEEDS TO BE REMOVED FROM PARTS STOCK - PI7263 - MA ILED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA
PSP FOR INSTALLING NEW VALVE LOCKS ON CERTAIN D8L TRACTORS AND 631E SCRAPERS - PS4614 - MAILED US AND CANADA, COSA, LIMITED CFE L PSP FOR INSTALLING NEW VALVE LOCKS ON CERTAIN D8L TRACTORS AND 631E SCRAPERS - PS4614 - MAILED US AND CANADA, COSA, LIMITED CFE L
PRIORITY - PARTS STOCK ACTION NEEDED - THE ELECTRONIC CONTROL GROUP FOR THE CMS PANEL NEEDS TO BE REPLACED - THE DIAGNOSTIC CON NECTOR WIRING ON THE STARTER NEEDS TO BE CHANGED ON CERTAIN 966F WHEEL LOADERS - PI3522 - MAILED US AND CANADA, CACO, CFEL PRIORITY - PARTS STOCK ACTION NEEDED - THE ELECTRONIC CONTROL GROUP FOR THE CMS PANEL NEEDS TO BE REPLACED - THE DIAGNOSTIC CON NECTOR WIRING ON THE STARTER NEEDS TO BE CHANGED ON CERTAIN 966F WHEEL LOADERS - PI3522 - MAILED US AND CANADA, CACO, CFEL
SERVICE LETTER EXTENSION FOR APRIL 9, 1990 SL - PSP FOR TURBOCHARGER TURBINE WHEEL ON D11N TRACTORS; 776B TRACTORS; 777 B TRUCKS; AND 3508 ENGINES (SPARE) - PS4394 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SERVICE LETTER EXTENSION FOR APRIL 9, 1990 SL - PSP FOR TURBOCHARGER TURBINE WHEEL ON D11N TRACTORS; 776B TRACTORS; 777 B TRUCKS; AND 3508 ENGINES (SPARE) - PS4394 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PRIORITY - PARTS STOCK ACTION NEEDED - NEW SOLENOID TO CONTROL GOVERNOR HORSEPOWER SETTING NEEDS TO BE INSTALLED ON CERTAIN 140 G VHP MOTOR GRADERS, 518 SKIDDERS, AND 518 GRAPPLE SKIDDERS - PI3538 - MAILED US AND CANADA, CACO, COSA, LIMITED COFA - RE PRIORITY - PARTS STOCK ACTION NEEDED - NEW SOLENOID TO CONTROL GOVERNOR HORSEPOWER SETTING NEEDS TO BE INSTALLED ON CERTAIN 140 G VHP MOTOR GRADERS, 518 SKIDDERS, AND 518 GRAPPLE SKIDDERS - PI3538 - MAILED US AND CANADA, CACO, COSA, LIMITED COFA - RE
PSP FOR REPLACING THE TRACK IDLER SHAFT AND BEARINGS IN THE TRACK IDLERS OF CERTAIN D3C TRACTORS, D4C TRACTORS, 931C LOA DERS, AND 935C LOADERS - PS4554 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR REPLACING THE TRACK IDLER SHAFT AND BEARINGS IN THE TRACK IDLERS OF CERTAIN D3C TRACTORS, D4C TRACTORS, 931C LOA DERS, AND 935C LOADERS - PS4554 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PARTS STOCK ACTION ONLY - 9W4135 TRANSFER GEARS IN PARTS STOCK NEED TO BE INSPECTED - PI7265 - MAILED US AND CANADA, CACO, COF A, BRAZIL, CFEL, COSA PARTS STOCK ACTION ONLY - 9W4135 TRANSFER GEARS IN PARTS STOCK NEED TO BE INSPECTED - PI7265 - MAILED US AND CANADA, CACO, COF A, BRAZIL, CFEL, COSA
PSP FOR INSTALLING A NEW WINCH CONTROL VALVE TO IMPROVE INPUT CLUTCH OPERATION ON CERTAIN D5H CUSTOM SKIDDERS EQUIPPED WITH AN 8Z7530 GRAPPLE MODIFICATION - PS0546 - MAILED US AND CANADA PSP FOR INSTALLING A NEW WINCH CONTROL VALVE TO IMPROVE INPUT CLUTCH OPERATION ON CERTAIN D5H CUSTOM SKIDDERS EQUIPPED WITH AN 8Z7530 GRAPPLE MODIFICATION - PS0546 - MAILED US AND CANADA