PRODUCT SUPPORT PROGRAM FOR REWORKING THE LIFT ARM B-PIN BOSS ON CERTAIN 994K LARGE WHEEL LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE LIFT ARM B-PIN BOSS ON CERTAIN 994K LARGE WHEEL LOADERS

Usage:

TEBE8898-00

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20Mar2019

U-146

A-119

D-121

O-128

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Before/After	PRODUCT SUPPORT PROGRAM FOR REWORKING THE LIFT ARM B-PIN BOSS ON CERTAIN 994K LARGE WHEEL LOADERS
6118		PS46166

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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 "PS46166" 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

31Mar2021

PROBLEM

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The existing lift arm bucket pin bosses can develop cracks in the welds on certain 994K Large Wheel Loaders. If weld cracks are not repaired, they can transition into the lift arm plate and lead to lift arm failure.

AFFECTED PRODUCT

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Model	Identification Number
994K	MM900301-00307 MRK00201-00204, 312-321 SMX00201

PARTS NEEDED

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Qty	Part Number	Description
2	3E8011	BOLT
2	3E8012	BOLT
8	7X4786	SEAL-PIN
4	8T1583	NUT-HEX
8	1547204	COLLET
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 25% 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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Refer to M0102255, Special Instruction, "Rework Procedure for the Lift Arm B-Pin of Certain 994K Wheel Loaders", to complete this Rework Procedure.

For access, the bucket should be removed. Refer to M0071308, Disassembly and Assembly, "Bucket - Remove and Install".

Inspect the lift arm B-Pin boss weld. All four B-Pin bosses need to be inspected for cracking.

- If no cracks are detected, the welds should be ground per M0102255, Special Instruction, section "B-Pin Boss Grinding".

- If cracks are present, the cracks need to be repaired, B-pin boss weld built up, and welds ground. Refer to M0102255, Special Instruction, section "Repairing Cracks at the B-Pin Boss." This is only on the B-pin boss(s) with cracks. Non-cracked B-pin bosses should ground only.

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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%
0-20000 hrs, 0-48 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 22.0-hour job
Note: This allowance is to proactively grind welds. Note: An additional 6.0 hours is allowed, per B-pin boss, if cracks are found. Note: An additional 6.0 hours per b-pin boss is allowed, up to a total of 24.0 additional hours per machine. Note: If cracks are found it is required to attach in SIMS pictures pre and post repair.

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