PRODUCT SUPPORT PROGRAM FOR THE REMOVAL OF RAISED MARKINGS IN THE WHEEL WELL AREA OF THE FRONT WHEELS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR THE REMOVAL OF RAISED MARKINGS IN THE WHEEL WELL AREA OF THE FRONT WHEELS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS

Usage:

REBE6489-01

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28Jun2011

(Revised 15May2012)

U-259

A-214

D-236

O-231

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Before/After Parts stock action needed	PRODUCT SUPPORT PROGRAM FOR THE REMOVAL OF RAISED MARKINGS IN THE WHEEL WELL AREA OF THE FRONT WHEELS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS
4006 7200 4251		PS43312

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NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS43312" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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NOTE:

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7755" as the Group Number, "56" as the Description Code.

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NOTE:

Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.

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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.

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NOTE:	This Revised Service Letter replaces the 28Jun2011 Service Letter. Changes have been made to the Problem, Parts Needed, Action Required, and Service Claim Allowances.

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TERMINATION DATE

30Jun2013

PROBLEM

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The 144-0803 Front Wheels on certain 797 and 797B Off-Highway Trucks may develop cracks in the wheel well. Raised markings contribute to cracking thus removal of the raised markings will reduce the potential of cracks developing.

NOTE: Grinding off the raised markings is recommended while the wheel is on a truck since this will reduce the potential of cracks developing. Grinding off the raised markings while the wheel is at rebuild is recommended. This will reduce the potential of cracks developing after being placed on a truck.

AFFECTED PRODUCT

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Model	Identification Number
797	5YW00193-00277
797B	JSM00123-00483

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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****Parts Stock ****

Rework all 192-5826 Suspension & Brake Front Wheel Groups in dealer parts stock or dealer exchange inventory that contain a 144-0803 Wheel. Rework these front wheel groups by grinding off the raised markings on the 144-0803 Wheels. Reference Special Instructions REHS5099. Restamp or etch the casting numeral code, casting serial number, and part number as outlined in the Special Instructions.

****Affected Product****

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Inspect the 144-0803 Front Wheels as per the OMM.

Grind off the raised markings on the front wheels in the wheel well area as per the Special Instructions REHS5099 "Procedure to Remove Raised Markings in the Wheel Well Area of the Wheels on Certain 797 and 797B Off-Highway Trucks". Restamp or etch the casting numeral code, casting serial number, and part number as outlined in the Special Instructions.

NOTE: Grinding off the raised markings is recommended while the wheel is on a truck since this will reduce the potential of cracks developing. Grinding off the raised markings while the wheel is at rebuild is recommended. This will reduce the potential of cracks developing after being placed on a truck.

NOTE: If a crack is found while grinding off raised markings, refer to REHS6105 "Procedure to Inspect and Repair the Front Wheels on Certain 797 and 797B Off-Highway Trucks" for potential salvage of the front wheel. Refer to Service Letter REBE8259 "Product Support Program for Reworking the Front Wheels on Certain 797 and 797B Off Highway Trucks" for claim allowances when a crack has been found and REHS6105 has been applied.

Refer to SEBF8443 for further reuse and salvage guidelines not covered in REHS6105.

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SERVICE CLAIM ALLOWANCES

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****Parts Stock****

Submit one claim for all front wheel groups in dealer parts stock or dealer exchange inventory that were reworked to grind off the raised markings. Two hours of labor per wheel group are allowed for grinding off the raised markings. No parts are required.

****Affected Product****

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-20000 hrs, 0-36 mo	0.0%	100.0%	0.0%	0.0%	0.0%	0.0%
20001-40000 hrs, 37-72 mo	0.0%	100.0%	0.0%	0.0%	0.0%	0.0%
40001-60000 hrs, 73-108 mo	0.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 2.0-hour job
The grind process is a before failure procedure, use 56 as the warranty description code. NOTE: If a crack is found while grinding off raised markings, refer to REHS6105 for potential salvage of the front wheel. Refer to Service Letter REBE8259 for claim allowances when a crack has been found and REHS6105 has been applied.

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