PRODUCT SUPPORT PROGRAM FOR REPLACING DIFFERENTIAL SPIRAL BEVEL PINION B1 BEARING ASSEMBLY ON CERTAIN 793F OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING DIFFERENTIAL SPIRAL BEVEL PINION B1 BEARING ASSEMBLY ON CERTAIN 793F 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 "PS44570" 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 24Nov2014 Service Letter. Changes have been made to add Dealer Parts Stock Action.

TERMINATION DATE

Qty

Rework all 193-6222, 280-1609, 280-1609, and 379-8891 Differentials in dealer parts stock and dealer exchange inventory.

Submit one claim for reworking 193-6222, 280-1609, 280-1609, and 379-8891 Differentials in dealer parts stock and dealer exchange inventory. 6 hours of labor plus (1) 5P4540 Bearing Cup, (17) 5P8245 Washers, (1) 6M5218 Seal-O Ring, (17) 6V5684 Bolt, (1) 3871379 Seal As, and (1) 4364013 Bearing Cone will be allowed for each differential that is 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.