PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING THE HOIST CYLINDER HOSES ON CERTAIN 793F, 793F XQ, AND 793F CMD OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING THE HOIST CYLINDER HOSES ON CERTAIN 793F, 793F XQ, AND 793F CMD OFF-HIGHWAY TRUCKS

Usage:

REBE8953-02

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19Dec2012

(Revised 11Nov2014)

U-689

A-543

D-585

O-628

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING THE HOIST CYLINDER HOSES ON CERTAIN 793F, 793F XQ, AND 793F CMD OFF-HIGHWAY TRUCKS
5057		PS43803

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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 "PS43803" 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 19Dec2012 (Revised 05Dec2013) Service Letter. Changes have been made to the Action Required.

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TERMINATION DATE

30Apr2015

PROBLEM

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The existing right hand hoist cylinder hoses can rub on the hydraulic tank on certain 793F, 793F XQ, and 793F CMD Off-Highway Trucks. This interference may sometimes only occur during dump operations. If the existing hoses fail they will result in an inability to complete/perform dump operations as well as extensive oil loss.

AFFECTED PRODUCT

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Model	Identification Number
793F	SSP00112-00868
793F CMD	RBT00111-00164
793F XQ	SND00100-00127

PARTS NEEDED

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Qty	Part Number	Description
4	1912962	SEAL-O-RING
1	4234033	HOSE AS
1	4234034	HOSE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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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Inspect the hoses on each affected machine with the body in both the raised and lowered positions. If interference is noted then replace the existing hoses with the new design. Replace O-ring seals if necessary. Refer to the attached Rework Procedure. Refer to attached image for fitting/port connections.

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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%
0-18000 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 2.0-hour job

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PARTS DISPOSITION

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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Rework Procedure

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Refer to the Service Manual if/as necessary.
See the OMM "Prepare the Machine for Maintenance".
Remove the existing 293-2981 and 293-2982 Hoses from the right hand hoist cylinder.
Replace the existing hoses that were removed with the new hose assemblies.
Refer to image for hose placement.