PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT AND UPDATING THE AUXILIARY OIL COOLER MOUNTING TO THE INNER LEFT HAND WINDOW PLATE IN THE MID FRAME SECTION ON CERTAIN 793F, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT AND UPDATING THE AUXILIARY OIL COOLER MOUNTING TO THE INNER LEFT HAND WINDOW PLATE IN THE MID FRAME SECTION ON CERTAIN 793F, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS

Usage:

TEBE4859-01

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21Jul2016

(Revised 25Jul2016)

U-381

A-287

D-335

O-333

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Before/After	PRODUCT SUPPORT PROGRAM FOR ADDING POST WELD TREATMENT AND UPDATING THE AUXILIARY OIL COOLER MOUNTING TO THE INNER LEFT HAND WINDOW PLATE IN THE MID FRAME SECTION ON CERTAIN 793F, 793F CMD, 793F OEM, AND 793F XQ OFF-HIGHWAY TRUCKS
7050 7051 0679		PS45160

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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 "PS45160" 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 21Jul2016 Service Letter. Changes have been made to the Affected Product.

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TERMINATION DATE

31Dec2019

PROBLEM

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Frame cracking has been reported on the cooler mounting blocks in the mid-frame area of certain 793F, 793F CMD, 793F OEM, and 793F XQ Off-Highway Trucks. This program applies to cracks found in the fillet weld connecting the cooler mounting blocks to the inside left window plate of the 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	SSP00951, 956-966, 968-971, 975, 978-979, 983, 999, 1003-1008, 1010, 1018, 1020-1022, 1026, 1046-1047, 1049-1050, 1055-1056, 1058-1059, 1081
793F CMD	RBT00169-00171

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*****Group 2*****
793F	SSP00944-00950, 952-955, 967, 972-974, 976-977, 980-982, 984-998, 1000-1002, 1009, 1011-1017, 1019, 1023-1025, 1027-1045, 1048, 1051-1054, 1057, 1060-1080, 1082-1128
793F CMD	RBT00165-00168
793F OEM	SXP00101-00103
793F XQ	SND00132-00133

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
8	5P1076	WASHER-HARD
1	7X0752	BOSS-WELD
10	8T4183	BOLT-HEX HEAD
4	8T4194	BOLT-HEX HEAD
4	8T4223	WASHER-HARD
6	8T4244	NUT-HEX
23	8T4910	BOLT-HEX HEAD
1	8T4935	BOSS-WELD
4	1729966	BOLT-HEX HEAD
51	1984778	WASHER-HARD
1	4931624	PLATE
1	4931627	BRACKET AS
1	4931628	BRACKET AS
1	4931629	BRACKET AS
1	4931630	BRACKET AS
1	4931631	BRACKET AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 15% 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	7X0752	BOSS-WELD
1	8T4935	BOSS-WELD
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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Excavate and repair any cracking per the specifications listed in the section "Repairing Frame Cracks at the Cooler Mounting Blocks and Inner Left-Hand Window Plate on the Mid Frame Section" in Special Instruction REHS7995 "Procedure to Inspect and Repair the Center Section Frame on Certain 793F Off-Highway Trucks".

Update the window plate attachments, add post weld treatment, and update the auxiliary oil cooler mounting (if equipped) per the specifications listed in Special Instruction M0073048 "Procedure to Rework the Brake Oil Cooler Mounting on Certain 793F off-Highway Trucks".

Refer to Images 1 and 2 for cooler mounting block location and Image 3 for an example of a crack on the cooler mounting block at the upper rear corner.

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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 6.0-hour job for Group 1
It is the intent of this letter that it is to be completed while the coolers are removed for planned component replacement or failure. If this letter is completed After Failure (crack initiation) an additional 13 hours of labor may be claimed to remove and install the coolers, related componentry, and repair the crack. 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 4.0-hour job for Group 2
It is the intent of this letter that it is to be completed while the coolers are removed for planned component replacement or failure. If this letter is completed After Failure (crack initiation) an additional 12 hours of labor may be claimed to remove and install the coolers, related componentry, and repair the crack. For After Failure repairs it is required to attach pictures showing the cracking and weld repairs to SIMSi when submitting the warranty claim.