PRODUCT SUPPORT PROGRAM FOR REPLACING THE COMPRESSOR INTER-STAGE AIR ELBOWS ON CERTAIN 797F OFF-HIGHWAY TRUCKS EQUIPPED WITH HIGH ALTITUDE ENGINE ARRANGEMENT Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE COMPRESSOR INTER-STAGE AIR ELBOWS ON CERTAIN 797F OFF-HIGHWAY TRUCKS EQUIPPED WITH HIGH ALTITUDE ENGINE ARRANGEMENT

AVSpare’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 AVSpare.

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 "PS46585" 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 AVSpare product analyst.

This Revised Service Letter replaces the 27Feb2020 Service Letter. Changes have been made to the Affected Product, Parts Stock Action Required, and Service Claim Allowances.

TERMINATION DATE

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Replace the compressor inter-stage air elbows on all engines with 575-6972 Engine Arrangement, with Serial Numbers 4X401000 through 4X401022, in in dealer parts stock and/or dealer exchange inventory. Refer to Special Instruction, M0115771.

Submit one claim for all engines reworked in dealer parts stock and/or dealer exchange inventory. Include the serial number of the engines that were reworked. The parts listed in the Parts Needed are allowed for each engine that is reworked. 4 hours are allowed for each engine reworked.

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.