PRODUCT SUPPORT PROGRAM FOR MONITORING SCHEDULED OIL SAMPLING (SOS) AND INSPECTING REAR WHEEL MAGNETIC PLUGS ON CERTAIN 793D, 793F AND 793F CMD OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR MONITORING SCHEDULED OIL SAMPLING (SOS) AND INSPECTING REAR WHEEL MAGNETIC PLUGS ON CERTAIN 793D, 793F AND 793F CMD OFF-HIGHWAY TRUCKS

Usage:

TEBE4894-00

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24Jun2016

H070
H072
K645
K646
L100
NONE
T080
T081

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Before/After (Limited distribution)	PRODUCT SUPPORT PROGRAM FOR MONITORING SCHEDULED OIL SAMPLING (SOS) AND INSPECTING REAR WHEEL MAGNETIC PLUGS ON CERTAIN 793D, 793F AND 793F CMD OFF-HIGHWAY TRUCKS
7755 3258 3256 3281		PS45128

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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 "PS45128" 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

30Jun2017

PROBLEM

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The differential group may fail on certain 793D, 793F and 793F CMD Off-Highway Trucks due to improper assembly.

AFFECTED PRODUCT

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Model	Identification Number
793D	FDB01847-01855
793F	SSP01130-01151, 1156-1160, 1163-1165
793F CMD	RBT00176-00186

PARTS NEEDED

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Qty	Part Number	Description
2	1698373	BOTTLE GP-FLUID (1 per inspection period)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 29% 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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At 100 and 250 service meter hours:

1. Obtain SOS sample and analyze for excessive wear metals (ppm).
2. Remove and inspect rear wheel magnetic plugs for excessive debris.
3. Remove and inspect rear axle lubrication system pump screen for excessive debris.
4. If any of the oil samples contain excessive wear metals or inspections contain
excessive debris, remove the rear axle housing inspection cover to visually inspect the differential for excessive debris.

Document findings of any excessive wear metals or debris, including pictures and contact Lower Power Train Service Engineer Tom Gregg at gregg_thomas_j@cat.com for further instructions.

After these two additional hour interval checks resume the normal maintenance intervals as described in the machine Operation and Maintenance Manual.

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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%
0-500 hrs, 0-24 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
File one claim after both of the inspections are completed. This is a 1.0 hour job for each hour interval check. This includes the time for obtaining a SOS sample, inspecting the rear wheel magnetic plugs and rear axle lubrication system pump screen.

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