Product Support Program For Repairing The Rear Axle Housings On Certain 776B Tractors And 777B Trucks
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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.
NOTE: This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0508" as Part Number, "7755" as Group Number, and "96" as Description Code.
Termination Date
April 30, 1993Problem
The rear axle housings on certain 776B Tractors and 777B Trucks may fail. Failed housings can be repaired.
Affected Product
Model & Identification Number
776B (6JC1-84)
777B (4YC1-1230; 3NF1-42)
Parts Needed
Not Applicable
Action Required
Weld repair the cracks and remachine the rear axle housings. See Special Instructions SEHS9320, "Axle Housing Salvage Operation."
Service Claim Allowances
NOTE: This is a 168-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Caterpillar Information System:
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