PSP FOR REBUILDING THE RESONATOR ASSEMBLY FOR THE POWERSHIP TRANSMISSION OF CERTAIN D4H TRACTORS - PS4525 - MAILED US AND CAN ADA, CACO, COFA, CFEL, COSA
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PSP FOR REBUILDING THE RESONATOR ASSEMBLY FOR THE POWERSHIP TRANSMISSION OF CERTAIN D4H TRACTORS - PS4525 - MAILED US AND CAN ADA, CACO, COFA, CFEL, COSA
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.
U-177 A-122 AU-114 E-107 O-135 3167 PS4525 NOTE: This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4525" as Part Number, "7755" as Group Number, and "96" as Description Code.
Termination Date
August 31, 1991
Problem
The bore in the resonator body may wear on certain D4H Tractors. The resultant leakage of torque converter inlet oil can cause shift hesitation and contribute to powertrain oil overheating.
Affected Product
Model Identification Number D4H 8PB1-4341, 4346 9DB1-4160, 4162, 4166 8ZF1-25
Parts Needed
2 - 3D2824 O-ring 4 - 8M8157 O-ring 1 - 8E2811 Body-Resonator 1 - 3T8403 Gasket 2 - 6F6673 O-ring 1 - 6Y2349 Connector
Action Required
If shift hesitation is encountered in D4H Tractors, one of the first and easiest things that should be checked is the resonator assembly. To rebuild the resonator assembly, perform the steps that follow: 1. Remove the 3T8402/9W5480 Cover that is located behind the transmission controls. 2. Remove the 9W5434 Resonator Assembly from the front side of the cover. 3. Remove the 9W5435 Piston, 8M1322 Spring, and 9S8008 Plug from the existing resonator assembly. 4. Use the piston, spring, and plug removed in Step 3 along with the new parts to rebuild the resonator. 5. Install the resonator in the cover and install the cover on the transmission. ****** IMAGE: SEBE4391.00001.001 CAPTION:
Service Claim Allowances
Product Caterpillar Dealer Suggested Customer Suggested smu Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 0-2000 100% 1 0 1 0 0 2001-4000 33 1/3% .5 0 .5 50% 1 NOTE: This is a 2-hour job.
Parts Disposition
Any parts removed (with the exception of cores used for Caterpillar Remanufactured parts) can be rendered useless and scrapped immediately upon completion of the repair.
Caterpillar Information System:
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