PRODUCT SUPPORT PROGRAM FOR REPLACING THE TORQUE CONVERTER AND TRANSMISSION FILTER GROUP BYPASS SPOOL ON CERTAIN 797, 797B, 797F, AND 797F XQ OFF-HIGHWAY TRUCKS AT PLANNED COMPONENT REBUILD (PCR) Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TORQUE CONVERTER AND TRANSMISSION FILTER GROUP BYPASS SPOOL ON CERTAIN 797, 797B, 797F, AND 797F XQ OFF-HIGHWAY TRUCKS AT PLANNED COMPONENT REBUILD (PCR)

Usage:

TEBE7849-01

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01Aug2018

(Revised 13May2019)

U-457

A-338

D-402

O-409

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE TORQUE CONVERTER AND TRANSMISSION FILTER GROUP BYPASS SPOOL ON CERTAIN 797, 797B, 797F, AND 797F XQ OFF-HIGHWAY TRUCKS AT PLANNED COMPONENT REBUILD (PCR)
3030 3101 7750		PS45965

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS45965" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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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.

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NOTE:	This Revised Service Letter replaces the 01Aug2018 Service Letter. Changes have been made to the Affected Product and Service Claim Allowances.

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TERMINATION DATE

31Aug2020

PROBLEM

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The existing 154-4877 Bypass Spool in the 193-0922 Filter Group needs to be replaced at PCR (or CRC repair) on certain 797, 797B, and 797F Off-Highway Trucks. The 193-0922 Filter Group is used as the Torque Converter and Transmission Filter group on the 797 and 797B Trucks. The 797F Trucks use the 193-0922 Filter Group as the transmission filter (the 797F Torque Converter Filter Group is a different design and does not apply to this issue). The former 154-4877 Bypass Spool can bypass oil around the spool due to certain stackup tolerances in the filter head. The new 5488578/">548-8578 Bypass Spool has an increased spool to bore overlap to prevent any unintended bypass issues.

AFFECTED PRODUCT

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Model	Identification Number
797	5YW00193-00277
797B	JSM00123-00488
797F	LAJ00141-00659
797F XQ	WSP00100-00129

PARTS NEEDED

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Qty	Part Number	Description
1	5488578	SPOOL-BYPASS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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At the time of the Torque Converter or Transmission rebuild/repair, replace the existing 154-4877 Bypass Spool with the new 5488578/">548-8578 Bypass Spool. The improved 5488578/">548-8578 Bypass Spool is a direct replacement for the former 154-4877.
Refer to Disassembly and Assembly manual KENR8372 for additional information.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-125000 hrs, 0-96 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%

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NOTE: This is a 0.0-hour job If there has been a previous repair, part age/hours 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.
Note: This program is intended to be implemented at PCR/CRC Component repair. No labor will be allowed since the repair is at PCR/CRC Component repair. Note: If it is determined that a machine has more than one affected filter group, multiple claims are allowed for a given machine serial number. When filing either the first or second claim always note if it is the Transmission Filter Group or the Torque Converter Filter Group that is being repaired.

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