REGULATOR 9Y3088 - Caterpillar

When reporting the repair, use "PS90326" as the Part Number and "7777" as the Group Number. If administered before failure, use "56" as Warranty Claim Description and "T" as the SIMS Description Code. If administered after failure, use "96" as Warranty Claim Description Code and use "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
30Apr2016
PROBLEM
This effort is being performed to understand the results of changing the engine oil every 250 hours as it pertains to piston ring breaking, piston ring groove wear and excessive carbon build up.
AFFECTED PRODUCT
Model Identification Number
793B 1HL00021, 59
PARTS NEEDED
Qty
Part Number Description
4 2752604 FILTER AS-LUBE
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
Every 250 hours, change the engine oil and engine oil filters.
Engine oil is not covered under this program.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-16000 hrs,
0-30 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
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.
Engine oil is not covered under this program.
This program may be applied a maximum of 64 times per machine serial number, or until the engine hours are 16,000 hours.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.