PRODUCT SUPPORT PROGRAM FOR REPLACING THE SECOND REDUCTION PLANET GEAR BEARINGS IN FINAL DRIVE GROUPS ON CERTAIN D10R AND D10T TRACK-TYPE TRACTORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE SECOND REDUCTION PLANET GEAR BEARINGS IN FINAL DRIVE GROUPS ON CERTAIN D10R AND D10T TRACK-TYPE TRACTORS

Usage:

REBE6680-00

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10Jan2011

U-17

A-14

D-17

O-17

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE SECOND REDUCTION PLANET GEAR BEARINGS IN FINAL DRIVE GROUPS ON CERTAIN D10R AND D10T TRACK-TYPE TRACTORS
4055 4050		PS51968

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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 "PS51968" 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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TERMINATION DATE

31Jan2013

PROBLEM

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The 2nd reduction planet gear bearings in the final drives of certain D10R and D10T Track-Type Tractors may fail prematurely due to quality and design issues.

AFFECTED PRODUCT

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Model	Identification Number
D10R	3KR00395-01888, 75001-75016, 75018-75023, 76002-76003 AKT00188-00943, 75001, 76001-76002
D10T	RJG00003-00004, 105-2474

PARTS NEEDED

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Qty	Part Number	Description
8	1L7319	CUP-ROLLER BRG
8	3625414	BEARING-CONE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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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NOTE: Final drives may experience failures for several reasons with one of the most common being a result of dirt entry into the component. This situation is usually detected via normal oil sampling and catastrophic damage can normally be avoided. However, normal oil sample analysis may not detect this bearing problem because the particles are sometimes too big.

A better check is to look at the magnetic plug every 250 hours when doing the OMM prescribed oil level check. Excessive debris on the plug can indicate a problem with the second reduction planet bearings.

Refer to RENR8166 for removal and installation of the final drive planetary carrier (in chassis) as necessary.

1. Inspect the magnetic drain plug for excessive debris when performing the 250 hour maintenance interval oil level check.

2. If excessive debris is found, determine the failed parts.

- If the failure is determined to be the second reduction planetary bearings, apply this program to replace the second reduction planet bearings and cups with new 362-5414 Cone Bearings and 1L-7319 Cups.

- If the failure is not related to the second reduction planetary bearings, this program does not apply.

The labor provided in this letter assumes that problem bearings are identified prior to a catastrophic failure.

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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%
0-6000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-12000 hrs, 61-120 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%

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NOTE: This is a 4.0-hour job If there has been a previous repair, part age/hours will apply. 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.
NOTE: The labor provided in this letter assumes that problem bearings are identified prior to a catastrophic failure. Additional hours will be allowed for repair after a catastrophic failure, include details in claim story.

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