RETAINER ASSEM. 7K7891 - Caterpillar

This Revised Service Letter replaces the 22Nov2011 Service Letter. Changes have been made to the Problem.
TERMINATION DATE
30Nov2013
PROBLEM
The existing 8T-4183 Bolt that is used on certain 296-8505 exhaust manifold assemblies, can fail on the Affected Product of C175 Generator Sets. If the existing bolts fail it can/will cause an exhaust leak.
AFFECTED PRODUCT
Model Identification Number
C175-16 WYB00136, 139-158, 160-168, 170-192, 194, 196-217, 219-231
PARTS NEEDED
Qty
Part Number Description
6 3225830 BOLT-HEX HEAD
6 3468379 SPACER-WASHER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% 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 three bolts and spacers with the new high temperature 322-5830 Bolts and high temperature 346-8379 Spacers.
Before assembly, apply 4C-5599 Anti-Seize Compound to the spacers and the threads of the bolts.
Tighten the six new bolts to 65 +/- 5 N.m (48 +/- 4 lb ft).
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SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-500 hrs,
0-24 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.