NOZZLE AS 2313319 - Caterpillar

When reporting the repair, use "PS90804" 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
28Feb2019
PROBLEM
The existing thermostatic valve motor mount assembly can fail on certain 793F Off-Highway Trucks. If the existing thermostatic valve mount assembly fails it will cause unplanned downtime for repair or replacement.
Expected failure modes are piston seizure, degradation of performance due to dirt/water ingress and snap ring failure.
AFFECTED PRODUCT
Model Identification Number
793F SSP00177, 179, 387-388
PARTS NEEDED
Qty
Part Number Description
2 1188706 SEAL-O-RING
2 3998110 GASKET-MOTOR HSG
1 4940387 MOUNT AS-MOTOR
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 the original thermostatic valve motor mount assembly with the new thermostatic valve motor mount assembly. Refer to Disassembly and Assembly document KENR8578.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-30000 hrs,
0-96 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 6.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.