PRODUCT SUPPORT PROGRAM FOR REPLACING THE 425-4563, 244-3114 OR 258-8987 VALVE GROUP ON THE TRANSMISSION FOR CERTAIN 797, 797B, 797F AND 797F XQ OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 425-4563, 244-3114 OR 258-8987 VALVE GROUP ON THE TRANSMISSION FOR CERTAIN 797, 797B, 797F AND 797F XQ OFF-HIGHWAY TRUCKS

Usage:

TEBE5230-02

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30Sep2016

(Revised 23Feb2018)

U-520

A-374

D-443

O-444

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 425-4563, 244-3114 OR 258-8987 VALVE GROUP ON THE TRANSMISSION FOR CERTAIN 797, 797B, 797F AND 797F XQ OFF-HIGHWAY TRUCKS
3030 3065 3101 3168		PS45242

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

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 "PS45242" 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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NOTE:	This Revised Service Letter replaces the 30Sep2016 (Revised 26Jun2017) Service Letter. Changes have been made to the Group 1 Affected Product.

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TERMINATION DATE

30Sep2018

PROBLEM

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The existing 425-4563, 244-3114, or 258-8987 Valve Group (whichever is installed) for transmission clutches 1 and 2 can fail on certain 797, 797B, 797F and 797F XQ Off-Highway Trucks. If the existing modulating valve fails, it can result in erratic pressures for clutch 1 and clutch 2, causing premature failure of these clutches.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
797F	LAJ00141-00640
797F XQ	WSP00100-00129

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*****Group 2*****
797	5YW00193-00277
797B	JSM00123-00488

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
2	4254563	VALVE GP-MDL -C
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 23% 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.
*****Group 2*****
2	4254563	VALVE GP-MDL -C
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 21% 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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This program is to be applied to replace the existing Clutch 1 and clutch 2 modulation valves (425-4563, 244-3114 or 258-8987) that have been in operation for 6,000 hours.

The valve needs to be changed every 6000 hours for the machines listed, which means there can be multiple claims against the same machine.

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

Note: After replacing the clutch 1 and 2 modulating valves, the transmission must be re-calibrated (Pressure and Fill calibrations). 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%
*****Group 1*****
0-75000 hrs, 0-96 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 3.0-hour job for Group 1 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.

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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%
*****Group 2*****
0-125000 hrs, 0-96 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 3.0-hour job for Group 2 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.