PRODUCT SUPPORT PROGRAM FOR REPLACING SECOND REDUCTION RING GEARS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING SECOND REDUCTION RING GEARS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS

Usage:

REBE3211-01

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04Feb2008

(Revised 02May2008)

U-60

A-50

D-46

O-53

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING SECOND REDUCTION RING GEARS ON CERTAIN 797 AND 797B OFF-HIGHWAY TRUCKS
4201 4001		PS51442

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NOTE:

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS51442" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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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 04Feb2008 Service Letter. Changes have been made to the Service Claim Allowances.

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TERMINATION DATE

28Feb2010

PROBLEM

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The existing 1397649/">139-7649 2nd Reduction Gear may fail prematurely on certain 797 and 797B Off-Highway Trucks.

AFFECTED PRODUCT

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Model	Identification Number
797	5YW00193-00277
797B	JSM00123-00309

PARTS NEEDED

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Qty	Part Number	Description
1	1397649	GEAR-RING
In Order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 3% 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

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After failure, remove the 1397649/">139-7649 2nd Reduction Ring Gear and replace with a new 1397649/">139-7649 Ring Gear. Please refer to the Disassembly and Assembly instructions to rework the final drives. Please evaluate parts reuse by referring to the reusability guidelines. Parts damaged as a result of the gear failures will be covered under this program. Please document the failure in SIMSi to have record available for viewing and please ensure picture of fatigue damaged tooth is shown.

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SERVICE CLAIM ALLOWANCES

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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%
0-18000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
18001-36000 hrs, 25-48 mo	33.3%	100.0%	0.0%	0.0%	50.0%	0.0%

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NOTE: This is a 118.0-hour job
No labor allowed if failed gear is found at PCR. Please use SEBF8193 Reuse & Salvage Guideline for drive train gears to determine 2nd reduction ring gear reusability. If there has been a previous repair part age will apply to the ring gear. Retain a copy of the previous repair invoice in the dealer's records for audit purposes and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.

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