PRODUCT SUPPORT PROGRAM FOR INSPECTING AND POSSIBLY REPLACING THE 532-8727 OR 20R-8235 ENGINE OIL PUMP ON CERTAIN 797F OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND POSSIBLY REPLACING THE 5328727/">532-8727 OR 20R-8235 ENGINE OIL PUMP ON CERTAIN 797F OFF-HIGHWAY TRUCKS

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.

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 "PS46171" 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.

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7755" as the Group Number, "56" as the Description Code.

Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.

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.

This Revised Service Letter replaces the 22Mar2019 Service Letter. A changes was made to the Parts Stock Action Required.

TERMINATION DATE

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Inspect all 5328727/">532-8727 Oil Pumps, 20R-8235 Oil Pumps, and all 532-8728 Shaft Assemblies per the attached Rework Procedure. Remove all defective oil pumps and shafts with incorrect machining from dealer parts stock.

Also inspect following engines in Dealer Parts Stock:

Inspect 398-1020 Engine Arrangement Serial numbers: LLM01573, LLM01574, and LLM01575

Inspect 514-4907 Engine Arrangement Serial numbers: 4X401000, 4X401001, and 4X401002

Inspect 514-4913 Engine Arrangement Serial numbers: AJ801006

Inspect 514-4912 Engine Arrangement Serial number: L4G01012

Inspect 20R-7015 Engine Arrangement Serial number: RMR00117

Remove the 5328727/">532-8727 or 20R-8235 Oil Pump from the engine and inspect the spline per the attached Rework Procedure.

Submit one claim for all parts removed from dealer parts stock. Include the quantity of pumps removed from inventory in the claim story.

Submit one claim for engines inspected and possible pump replacement in dealer parts stock. 8 hours are allowed and the parts listed in the Parts Needed are allowed for each engine. Engine Serial number(s) must be included in the claim story.

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.