PLATE 0776676 - Caterpillar

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 Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS8320" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Several other programs are being released concurrently with this to correct other deficiencies on the early machines. It might be advisable for the customers benefit to consolidate several reworks at one time. If you have not received the additional rework information, please contact Product Support at Gosselies for this information.
Termination Date
March 31, 1996Problem
Failures have occurred in the 7I7735 and 7I7736 Hoses that return cooled air from the aftercooler to the engine on certain 375, 375L and 5080 Excavators.
Affected Product
Model & Identification Number
375 (6NK58-97, 6NK99-99, 6NK102-102)
375L (9WL36-65, 9WL67-82, 9WL84-92)
5080 (6XK78-78, 6XK86-86, 6XK90-91, 6XK97-97, 6XK99-99)
Parts Needed
1 - 1189854 Hose1 - 1189855 HoseAction Required
Remove the existing 7I7735 and 7I7736 Hoses and replace them with new 1189854 and 1189854 Hoses.
Service Claim Allowances
This is a 2 hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.