PRODUCT SUPPORT PROGRAM FOR REPLACING THE FUEL LEVEL SENDER ON CERTAIN 521B, 522B, 541 SERIES 2, AND 552 SERIES 2 TRACK FELLER BUNCHERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE FUEL LEVEL SENDER ON CERTAIN 521B, 522B, 541 SERIES 2, AND 552 SERIES 2 TRACK FELLER BUNCHERS

Usage:

TEBE7661-00

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07May2018

U-261

A-192

D-228

O-233

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE FUEL LEVEL SENDER ON CERTAIN 521B, 522B, 541 SERIES 2, AND 552 SERIES 2 TRACK FELLER BUNCHERS
1273		PS45869

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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 "PS45869" 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

31May2020

PROBLEM

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The existing 341-1842 Fuel Level Sender can experience electrical short or intermittent concerns on certain 521B, 522B, 541 Series 2, and 552 Series 2 Track Feller Bunchers. If the 341-1842 Fuel Level Sender experiences these symptoms or failure, fuel may be leaking into the sender or there may be interference between the tank baffle gusset and the float arm.

AFFECTED PRODUCT

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Model	Identification Number
521B	F7B00250-00425
522B	F7C00210-00380
541 SERIES 2	F7D00190-00257
552 SERIES 2	F7G00170-00245

PARTS NEEDED

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Qty	Part Number	Description
1	4I0378	PACKING
5	6V9674	SCREW-MACHINE
5	8T0328	WASHER-HARD
1	5257103	SENDER AS-F LVL
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 8% 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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Replace the existing 341-1842 Fuel Level Sender with a new 525-7103 Fuel Level Sender Assembly using the suggested parts listed Parts Needed. Tighten the 6V-9674 Machine Screws to a specified torque of 1.4 +/- 0.1 N.m using a star pattern torque technique.

Image4 shows a view of the seal:

(A) Swollen seal stuck in the receptacle
(B) Seal after exposure to fuel
(C) New seal

Leaks are occurring through the wire only due to issues with the silicone blocking material. The interference between the wire conductors and insulation is sealed by a silicone blocking material. Refer to Image5.

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Image1

Image2

Image3

Image4

Image5

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%
0-4000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
4001-6000 hrs, 25-36 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%