PRODUCT SUPPORT PROGRAM FOR REWORKING THE BRAKE MANIFOLD BRACKET ASSEMBLY MOUNTING ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE BRAKE MANIFOLD BRACKET ASSEMBLY MOUNTING ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS

Usage:

TEBE8366-00

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27Oct2018

U-604

A-439

D-527

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Before/After	PRODUCT SUPPORT PROGRAM FOR REWORKING THE BRAKE MANIFOLD BRACKET ASSEMBLY MOUNTING ON CERTAIN 794 AC OFF-HIGHWAY TRUCKS
7755 5057 4257 1374 1380		PS46049

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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 "PS46049" 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

31Oct2020

PROBLEM

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The existing 442-3363 Brake Manifold Bracket As mounting can fail on certain 794 AC Off-Highway Trucks.

AFFECTED PRODUCT

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Model	Identification Number
794 AC	HRT00100-00101 MT500100-00149

PARTS NEEDED

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Qty	Part Number	Description
4	8T4956	BOLT-HEX HEAD
4	9R3572	BOSS
4	1984778	WASHER-HARD
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 22% 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. Inspect and replace the 442-3363 Bracket As mounting as per the Operation and Maintenance Manual. Disassemble/assemble brake oil cooling lines group components as required to complete Steps 2 and 3.

2. Replace the four 442-3363 Bracket As mounting bosses on the front axle with four 9R-3572 Bosses (1). Use the bracket assembly as a template to help locate the 9R-3572 Bosses (1). Weld four bosses all around with 5 millimeter (0.20 inch)fillet weld.

3. Secure 442-3363 Bracket As to four 9R-3572 Bosses (1) using four 8T-4956 Bolts and four 198-4778 Washers. Tighten bolts to 100 +/- 20 Nm (74 +/- 15 lb ft).

Note: Slots on bracket assembly must be enlarged to accept bolts.

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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%
0-24000 hrs, 0-66 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%