PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT TO THE INNER RIGHT HAND WINDOW PLATE ATTACHMENTS IN THE MID FRAME SECTION ON CERTAIN 793F, 793F AC, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT TO THE INNER RIGHT HAND WINDOW PLATE ATTACHMENTS IN THE MID FRAME SECTION ON CERTAIN 793F, 793F AC, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS

Usage:

TEBE4849-00

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21Jul2016

U-382

A-288

D-336

O-334

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Before/After	PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT TO THE INNER RIGHT HAND WINDOW PLATE ATTACHMENTS IN THE MID FRAME SECTION ON CERTAIN 793F, 793F AC, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS
7050 7051 0679		PS45161

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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 "PS45161" 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

31Dec2019

PROBLEM

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Frame cracking has been reported on the pump drive mount in the mid-frame area of certain 793F, 793F AC, 793F CMD, 793F OEM, and 793F XQ Off-Highway Trucks. This program applies to cracks found in the fillet weld connecting the pump drive mount to the inside window plate of the right frame rail. Before applying this program please contact Large Off-Highway Truck Product Support for additional repair recommendations. Cracks that go unidentified or identified and left unattended can lead to invasive frame repairs and/or severe frame damage.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
793F	SSP00944-01126
793F AC	EMD00075-00077
793F CMD	RBT00165-00171
793F OEM	SXP00101-00103
793F XQ	SND00132-00133

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*****Group 2*****
793F	SSP01127-01128

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Perform post weld treatment on the inner right hand window plate.

If a crack is identified on the pump drive mount, excavate and repair crack per the specifications listed in the Rework Procedure.

Refer to Images 1&2 for pump drive mount location and Image 3 for an example of a crack on the pump drive mount at the upper rear corner.

Note: Refer to the machines Operation and Maintenance Manual for frame inspection frequency.

Note: Full frame inspection and repair guidelines can be found in Special Instruction REHS7193 - Procedure for the Inspection, Repair, and Component Replacement on the Frame of the 793F, 793F AC and the 793F Command For Hauling Off-Highway Trucks{0679, 7051}.

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Image1

Image2

Image3

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%
24001-40000 hrs, 49-80 mo	100.0%	50.0%	0.0%	0.0%	0.0%	50.0%

NOTE: This is a 4.0-hour job for Group 1
It is the intent of this letter that the post weld treatment is to be completed while the pump drive is removed for planned component replacement or failure. If this letter is completed After Failure (crack initiation) an additional 23 hours of labor may be claimed to remove and install the pump drive and to repair the defect. For After Failure repairs it is required to attach pictures showing the cracking and weld repairs to SIMSi when submitting 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%
24001-40000 hrs, 49-80 mo	100.0%	50.0%	0.0%	0.0%	0.0%	50.0%

NOTE: This is a 3.0-hour job for Group 2
It is the intent of this letter that the post weld treatment is to be completed while the pump drive is removed for planned component replacement or failure. If this letter is completed After Failure (crack initiation) an additional 23 hours of labor may be claimed to remove and install the pump drive and to repair the defect. For After Failure repairs it is required to attach pictures showing the cracking and weld repairs to SIMSi when submitting the warranty claim.

PARTS DISPOSITION

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

Rework Procedure

Refer to the "Procedure for Repairing Frame Cracks at the Pump Drive Mount and Inner Right-Hand Window Plate on the Mid Frame Section" section in Special Instruction REHS7995 "Procedure to Inspect and Repair the Center Section Frame on Certain 793F Off-Highway Trucks".

If the repair is being completed before failure, start on step number 18 in the Special Instruction.

If the repair is being completed after failure start on step number 1 in the Special Instruction.

Group 1 contains post weld treatment from the factory on the top rear corner of the pump drive mount on the window plate side. Refer to Image1.2.1 and 1.2.2 for location of existing TIG dressing.

If this corner is defect free no action is required on this corner on the window plate side.

Image1.2.1

Image1.2.2

Group 2 contains post weld treatment from the factory on all four corners of the pump drive mount on the window plate side. Refer to Image1.3.1 and 1.3.2 for location of existing TIG dressing.

If these corners are defect free no action is required on the four corners on the window plate side.