PRODUCT IMPROVEMENT PROGRAM FOR REMOVING 8X0496, 8X0497, 160-6279, AND 160-6280 AXLE SHAFTS FROM DEALER PARTS STOCK Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING 8X0496, 8X0497, 160-6279, AND 160-6280 AXLE SHAFTS FROM DEALER PARTS STOCK

Usage:

SEBE8045

July 4, 2002
U-151
A-111
AU-110
S-110
H-108
O-126

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*Parts stock action only*	PRODUCT IMPROVEMENT PROGRAM FOR REMOVING 8X0496, 8X0497, 160-6279, AND 160-6280 AXLE SHAFTS FROM DEALER PARTS STOCK
4056		PI70044

NOTE: 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

October 31, 2002

PROBLEM

The dimension from the end of the shaft to the snap ring groove may be out of tolerance on certain 8X0496, 8X0497, 160-6279, and 160-6280 Axle Shafts in dealer parts stock. All of these axle shafts, for use in 793 Trucks, need to be inspected and removed from stock if the dimension is not correct.

Early hour failures of axles and/or thrust buttons can result if axle shafts with the incorrect dimensions are used.

ACTION REQUIRED

Inspect all 8X0496, 8X0497, 160-6279, and 160-6280 Axle Shafts in dealer parts stock.

Measure the distance from the end of the axle shaft to the far end of the snap ring groove.

The dimension must be 202.4 +/- 0.5 from end of shaft to far end side of groove. See the Illustration.

Any axle shaft that is not within tolerance must be removed from dealer parts stock.

202.4 +/- 0.5 FROM END OF SHAFT TO FAR END SIDE OF GROOVE

SERVICE CLAIM ALLOWANCES

Submit one claim for all 8X0496, 8X0497, 160-6279, and/or 160-6280 Axle Shafts that are removed from dealer parts stock.

PARTS DISPOSITION

NOTE: All dealers are to make sure the outside of the shipping container is marked PI70044.

***** All Dealers *****

Return all 8X0496, 8X0497, 160-6279, and 160-6280 Axle Shafts that are removed from parts stock and a copy of the claim to:

Caterpillar Inc.

Attn: Gene Sphar PI70044
Service Claims Room
8201 N. University
Peoria, IL 61615

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