PRODUCT SUPPORT PROGRAM FOR REPLACING THE 244-3114, 258-8987, 425-4563, OR 522-0906 VALVE GROUPS ON THE TRANSMISSION AND TORQUE CONVERTER AND REPLACING THE POWERTRAIN SOFTWARE ON CERTAIN 793F OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 244-3114, 258-8987, 425-4563, OR 522-0906 VALVE GROUPS ON THE TRANSMISSION AND TORQUE CONVERTER AND REPLACING THE POWERTRAIN SOFTWARE ON CERTAIN 793F OFF-HIGHWAY TRUCKS [UEBE0372]

ELECTRICAL AND STARTING SYSTEM

ELECTRONICS GP-POWER TRAIN

UEBE0372-03

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27Jul2020

(Revised 20Aug2020)

U-461

A-387

D-446

O-433

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE 244-3114, 258-8987, 425-4563, OR 522-0906 VALVE GROUPS ON THE TRANSMISSION AND TORQUE CONVERTER AND REPLACING THE POWERTRAIN SOFTWARE ON CERTAIN 793F OFF-HIGHWAY TRUCKS
3139 7490 7610 7620		PS46804

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NOTE:

AVSpare’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 AVSpare.

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 "PS46804" 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 AVSpare product analyst.

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NOTE:	This Revised Service Letter replaces the 27Jul2020 (Revised 19Aug2020) Service Letter. Changes have been made to the Service Claim Allowances.

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TERMINATION DATE

31Jul2022

PROBLEM

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The existing 244-3114, 258-8987, 425-4563, 522-0906 Valve Group (whichever is installed) for transmission clutches 1 through clutch 6 and the Torque Converter Lock-Up Clutch (LUC) can fail on certain 793F Off-Highway Trucks.

If the existing modulating valve fails, it can result in failed fill time and engagement pressure calibrations. Additionally, it can result in erratic clutch and LUC pressures causing premature failure of these clutches.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
793F	D3T00176-00185

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*****Group 2*****
793F	SSP00112-01174

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*****Group 3*****
793F CMD	RBT00191-00290

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*****Group 4*****
793F	D3T00142-00175

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*****Group 5*****
793F CMD	RBT00291-00337

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*****Group 6*****
793F CMD	RBT00111-00190

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*****Group 7*****
793F	SSP01175-01271

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*****Group 8*****
793F OEM	SXP00101-00103
793F XQ	SND00100-00133

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
1	6D7889	SEAL-O-RING
1	5916918	VALVE GP-MDL
1	5953443	SFWR GP-A5003
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 12% 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*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
7	5626148	VALVE GP-MT
1	5953443	SFWR GP-A5003
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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 3*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
6	5626148	VALVE GP-MT
1	5886190	SFWR GP-A5018
1	5916918	VALVE GP-MDL
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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 4*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
6	5626148	VALVE GP-MT
1	5916918	VALVE GP-MDL
1	5953443	SFWR GP-A5003
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 12% 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 5*****
1	6D7889	SEAL-O-RING
1	5886190	SFWR GP-A5018
1	5916918	VALVE GP-MDL
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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 6*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
7	5626148	VALVE GP-MT
1	5886190	SFWR GP-A5018
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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 7*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
6	5626148	VALVE GP-MT
1	5916918	VALVE GP-MDL
1	5953443	SFWR GP-A5003
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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 8*****
1	6D7889	SEAL-O-RING
1	7G6373	GASKET
7	5626148	VALVE GP-MT
1	5953443	SFWR GP-A5003
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 13% 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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Replace the existing clutch 1 through clutch 6 modulation valves on 793F Off-Highway Trucks (244-3114, 258-8987, or 425-4563 Valve Group) with the 562-6148 Modulation Valve. The Torque Converter LUC modulation valve (244-3114, 425-4563 or 522-0906 Valve Group) should be replaced with the 562-6148 Modulation Valve or 591-6918 Modulation Valve depending upon whichever valve is installed.

Note: The 562-6148 has a DT connector and the 591-6918 has an ampseal connector. Please ensure you use the correct valve based on the applicable truck harness.

Group 1, 2, 4, 7, 8: 595-3443 power train software or latest available on SIS Web must be installed when replacing the modulation valves. This software must be installed prior to the calibration of the modulation valves.

Group 3, 5, 6: 588-6190 power train software or latest available on SIS Web must be installed when replacing the modulation valves on machines not running in fully autonomous configuration. This software must be installed prior to the calibration of the modulation valves.

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

Refer to the Service Magazine, M0120605, "New Software (2020.1 Bundle) is Now Used for Certain 793F Large Off-Highway Trucks" for additional information about the 595-3443 power train software.

Refer to the Service Magazine, M0112569, "Improved Transmission Software and Electronic Control Group are Now Used on Certain 793F CMD Off-Highway Truck" for additional information about the 588-6190 power train software.

Note: After replacing any modulating valves, the transmission must be re-calibrated (Pressure and Fill calibrations).

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 1*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 2*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 3*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-hour job for Group 3 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 4*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-hour job for Group 4 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 5*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 3.0-hour job for Group 5 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 6*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-hour job for Group 6 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 7*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-hour job for Group 7 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 8*****
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
6001-10000 hrs, 13-36 mo	100.0%	0.0%	0.0%	0.0%	0.0%	100.0%
10001-18000 hrs, 37-48 mo	33.0%	0.0%	0.0%	0.0%	50.0%	100.0%

NOTE: This is a 8.0-hour job for Group 8 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.
Part hours based on transmission hours. Transmission hours must be provided within the claim story.