PRODUCT SUPPORT PROGRAM FOR INSTALLING ENGINE DAMPER GUARDS ON CERTAIN D9T TRACK-TYPE TRACTORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSTALLING ENGINE DAMPER GUARDS ON CERTAIN D9T TRACK-TYPE TRACTORS

Usage:

TEBE3984-02

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26Jan2016

(Revised 08Apr2016)

M450

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Before/After (Limited distribution)	PRODUCT SUPPORT PROGRAM FOR INSTALLING ENGINE DAMPER GUARDS ON CERTAIN D9T TRACK-TYPE TRACTORS
1205		PS44969

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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 "PS44969" 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 the26Jan2016 (Revised 27Jan2016) Service Letter. Changes have been made to correct the Rework Procedure text.

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TERMINATION DATE

31Jan2018

PROBLEM

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The existing engine damper can rub on debris build up in the bottom guards on certain D9T Track-Type Tractors. This rubbing can lead to damper failure.

AFFECTED PRODUCT

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Model	Identification Number
D9T	TWG00632-00633, 638-641, 645-656, 660-674, 676-682, 684, 687, 702-704

PARTS NEEDED

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Qty	Part Number	Description
4	8T4121	WASHER-HARD
4	8T4195	BOLT-HEX HEAD
1	4898200	GUARD AS
1	4898202	TEMPLATE - Recommend one template per ten machines
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 31% 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 the Service Manual if/as necessary and see the attached Rework Procedure.

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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%
0-7500 hrs, 0-99 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 4.0-hour job
1 template will be allowed for every 10 machines.

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PARTS DISPOSITION

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

Rework Procedure

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Refer to Disassembly and Assembly procedures as needed.

Lower and remove front hinged bottom guard and remove chin guard. Remove debris from guards.

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Remove engine damper.

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Inspect damper for damage. Look for leaks, worn welds, worn corners, or dents. If desired, use ultrasonic measuring equipment to determine the thickness of the damper case. The cover is approximately 6 mm thick when new. The cover should be at least 5 mm thick to reuse. The case is approximately 4 mm thick when new and should be at least 3.5 mm thick to reuse.

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Clean front engine mounting area. Use 489-8202 Template to mark four holes to be drilled and tapped. The large hole in template should be roughly concentric with hole in front engine mount.

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Drill holes using a 8.5mm or 21/64 inch bit. Thread using a M10-1.5 tap. Note: The reversing fan line P-clips may need to be loosened and the hose pulled aside for clearance to position drill.

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Reinstall damper and install 489-8200 Damper guard using four 8T-4121 Washers and four 8T-4195 Bolts. Tighten the bolts to a torque of 55 +/- 10 Nm. Check for proper clearance around the damper and the guard.