PRODUCT SUPPORT PROGRAM FOR REPLACING THE 244-3114 VALVE GP-MODULATING ON THE TORQUE CONVERTER OF CERTAIN 797 OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 244-3114 VALVE GP-MODULATING ON THE TORQUE CONVERTER OF CERTAIN 797 OFF-HIGHWAY TRUCKS

Usage:

REBE5701-00

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18Dec2009

U-446

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 2443114/">244-3114 VALVE GP-MODULATING ON THE TORQUE CONVERTER OF CERTAIN 797 OFF-HIGHWAY TRUCKS
3139 3167		PS43009

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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 "PS43009" 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:

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

30Apr2010

PROBLEM

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The existing 2443114/">244-3114 Valve Gp-Modulating for the torque converter can fail on certain 797 Off-Highway Trucks. If the existing modulating valve fails, it can result in reduced pressure to the torque converter lock up clutch causing premature fail of the lock up clutch.

AFFECTED PRODUCT

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Model	Identification Number
797	5YW00195-00218, 221-222, 240, 244-245, 247-257, 260-270
797B	JSM00123, 127-128, 130-131, 135-136, 139-142, 144-149, 151, 153-164, 191-194, 203-212, 216-228, 238, 261, 265-267, 276-279, 296, 298, 302-317, 320-332, 338-353, 364-365, 369-382, 386-389, 393-395, 398-402, 404-409, 412-413, 415, 418, 422, 424, 426, 428, 430, 432, 434-441, 446, 449-451, 453, 456-457, 461-462, 472, 476-488

PARTS NEEDED

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Qty	Part Number	Description
1	6D7889	SEAL-O-RING
1	2443114	VALVE GP-MDL -C
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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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Most failures occur after 6000 component hours. This service letter is to be applied to lock up clutch modulating valves that have been in operation for 6000 hours. The valve needs to be changed every 6000 hours which means there can be multiple claims against the same machine. The intention is that the valve would be changed during the routine PM.

Refer to the Service Manual as required to replace the modulating valve.

NOTE: Lock up clutch modulating valve must be re-calibrated after installation. If calibration procedure fails, component replacement may be required.

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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%
0-100000 hrs	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%