PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE LIP SEALS ON CERTAIN D6T AND D6T XL TRACK-TYPE TRACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE LIP SEALS ON CERTAIN D6T AND D6T XL TRACK-TYPE TRACTORS

Usage:

REBE6807-01

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07Mar2011

(Revised 07Jun2011)

U-91

A-74

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE LIP SEALS ON CERTAIN D6T AND D6T XL TRACK-TYPE TRACTORS
4050 4052		PI31852

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31852" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31852" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "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 07 March 2011 Service Letter. Changes have been made to the Affected Product.

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COMPLETION DATE	TERMINATION DATE
30Sep2011	31Mar2012

PROBLEM

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The existing lip seals may be damaged on certain D6T and D6T XL Track-Type Tractors. If an existing lip seal has been damaged it may allow oil to transfer from the final drive to the powertrain oil system.

AFFECTED PRODUCT

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Model	Identification Number
D6T	SMC00315-00392
D6T XL	GCT00501-00686

PARTS NEEDED

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Qty	Part Number	Description
2	9H3360	SEAL-O RING
2	2694739	SEAL-LIP TYPE
1	FNDR_OIL	FINAL DRIVE OIL 27 L (7.14 GAL) See OMM
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 40% 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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1 - Check the oil level in the final drive according to: "SEBU8146 : Final Drive Oil Level ? Check". An abnormally low oil level may be an indication that the lip seal needs to be replaced.
2 - Follow Disassembly and Assembly: "Final Drive Planetary Carrier (In Chassis) ? Remove".
3 - Install the new 269-4739 Lip Seal using a 1P-0520 Driver Group. Install the seal to a minimum depth of 9.65mm (0.4in). Make sure "This Side Out" is facing out from the spindle. Do not apply excessive force to lip seal during installation in order to avoid damaging the seal.
4 - Put clean oil on the lip of the seal.
5 - Follow Disassembly and Assembly: "Complete Final Drive Planetary Carrier (In chassis) ? Install" Refer to the OMM and fill the final drives with oil to the proper level.

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OWNER NOTIFICATION

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Owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

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NOTE: This is a 2.0-hour job
This is a 1 hour per side for a total of 2 hours for the program.

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PARTS DISPOSITION

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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

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COPY OF OWNER NOTIFICATION FOR OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 11111

PRIORITY-PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE FINAL DRIVE LIP SEALS ON CERTAIN D6T AND D6T XL TRACK-TYPE TRACTORS

MODELS INVOLVED: D6T and D6T XL Track-Type Tractors

Dear Caterpillar Product Owner:

The lip seals on the final drive may have been damaged during installation on the products listed below. If a lip seal has been damaged, oil may transfer from the final drive to the powertrain oil system. Your cooperation in scheduling the replacement of this lip seal with your dealer is requested. Checking oil levels more frequently than the normal 250 hour interval could be performed as a precautionary measure until the service is scheduled. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 07Mar2011 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 07Mar2011 Service Letter