HOUSING-VALVE 9Y6086 - 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 "PS43396" as the Part Numberand "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.
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.
TERMINATION DATE
30Sep2013
PROBLEM
The existing silencer material can degrade and begin to fall apart on certain 785C XQ Off-Highway Trucks. If the existing silencer material fails, the machine will no longer meet sound attenuation requirements.
AFFECTED PRODUCT
Model Identification Number
785C APX01260, 1337-1338, 1341, 1347, 1349, 1351, 1353, 1677-1682, 1688, 1690, 1697-1703, 1715-1717, 1722-1724
PARTS NEEDED
Qty
Part Number Description
1 3767681 KIT-785 SILENCER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Replace existing fiberglass silencer material with the new polyester based material
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-100000 hrs,
0-100 mo 33.0% 50.0% 0.0% 0.0% 50.0% 50.0%
This is a 24.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.