AIR COMPRESSOR GP 1855143 - 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.
Termination Date
January 31, 1998Problem
Some 1140966 Crank Gears have been incorrectly cut. The root radius is incorrect and may cause the gear to fail under load.
Action Required
Inspect all 1140966 Crank Gears in Parts Stock.
Use the Illustrations to determine "good" or "bad" gears. A visual check may be done with these Illustrations by looking for similarities in the circled region. If available, the gears should be viewed at 5 to 10 X magnification. A knife edge check can also be done by feeling along the root for sharp corners. The light part of the Illustration is the gear and dark part is the background. If the root of the gear tooth is squared off, as shown in the "bad" gear Illustration, then the gear is not good for use in any engine.
TEPS/MEPS dealers are reimbursed for recalled Parts Stock by returning the affected Parts Stock to their administering Caterpillar dealer for replacement.
Action Required Cont.
Illustration 1
Illustration 2Service Claim Allowances
Submit one claim for all 1140966 Crank Gears removed from Parts Stock.
US and Canadian Dealers Only - When submitting a Parts Stock claim use 99Z00007 in the Product Identification Number Field.
Parts Disposition
U.S. and Canadian Dealers
Return all incorrectly cut 1140966 Crank Gears that are removed from Parts Stock and a copy of the claim to:
Caterpillar Inc.
Attn: Lyle Koch - PI7397
Service Claims Room
8201 N. University
Peoria, IL 61615
All other dealers follow the warranty bulletin on warranty parts handling.