PRODUCT SUPPORT PROGRAM FOR HYDRAULIC BRAKE COOLING SUPPLY TUBES ON CERTAIN 793D AND 793F OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR HYDRAULIC BRAKE COOLING SUPPLY TUBES ON CERTAIN 793D AND 793F OFF-HIGHWAY TRUCKS

Usage:

TEBE4354-03

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26Feb2016

(Revised 22Feb2018)

U-103

A-82

D-91

O-90

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After Failure Only	PRODUCT SUPPORT PROGRAM FOR HYDRAULIC BRAKE COOLING SUPPLY TUBES ON CERTAIN 793D AND 793F OFF-HIGHWAY TRUCKS
5056		PS53150

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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 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 "PS53150" 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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NOTE:	This Revised Service Letter replaces the 26Feb2016 (Revised 07Mar2017) Service Letter. Changes have been made to the Termination Date and Affected Product.

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TERMINATION DATE

28Feb2019

PROBLEM

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The existing hydraulic brake cooling tubes can crack and fail on certain 793D and 793F Off-Highway Trucks. If the existing tube fails, it will result in high brake temperatures.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
793F	SSP00112-01197
793F CMD	RBT00111-00199
793F OEM	SXP00101-00103
793F XQ	SND00100-00133

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*****Group 2*****
793D	FDB00105-01949, 76001-76006, 78001-78003

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
1	1H0474	SEAL-O-RING
1	5F3092	SEAL-O-RING
1	1023482	GASKET
1	3677901	TUBE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 2% 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	1H0474	SEAL-O-RING
1	5F3092	SEAL-O-RING
1	2042635	GASKET
1	3526043	TUBE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 2% 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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Follow these steps when replacing a failed tube.

Note: Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed. Refer to the Operation and Maintenance Manual "Safety Section".

Refer to the Service Manual if/as necessary.

1. Loosen all bolts: pump to tank, support bracket to tank, and support bracket to pump holding the pump in place.

2. Remove the existing failed tube assembly and install new 367-7901 Tube Assembly to the pump and tighten.

3. Center the end of the new tube in the hole in the block on the tank wall.

4. Tighten the pump to the tank bolts, taking care not to change the alignment of the tube in the hole.

5. Adjust the support plate so that it sits flat against both the bottom of the tank and the end of the pump stack.

6. Tighten the bolts in the support plate to the tank bottom.

7. Tighten the bolts in the support plate to the end of the pump stack.

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Image1

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*****
0-24000 hrs, 0-48 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 6.0-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*****
0-24000 hrs, 0-48 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 6.0-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.