PRODUCT SUPPORT PROGRAM FOR REPLACING THE STICK EXTENSION CUSHION STOP (SNUBBER) ON CERTAIN 336D LARGE EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE STICK EXTENSION CUSHION STOP (SNUBBER) ON CERTAIN 336D LARGE EXCAVATORS

Usage:

TEBE0744-00

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22Apr2014

U-212

A-161

D-195

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE STICK EXTENSION CUSHION STOP (SNUBBER) ON CERTAIN 336D LARGE EXCAVATORS
5458 5456		PS52648

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NOTE:

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52648" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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

30Apr2016

PROBLEM

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The stick cylinder(s) may make a different sound on some 336D Excavators than previously built 336D machines, during the extension cushion stop (snubber) portion of the cylinder stroke. If the sound made during extension cushion stop is thought to be objectionable, the stick cylinder can be reworked with a new extension cushion stop which may change the harmonics of the extension cushion stop action.

There are no known performance advantages of the new extension cushion stop, only change in the harmonics. The sound of the original cushion stop will not have any long-term effect to the performance or reliability of the machine, hydraulic system or cylinder.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
336D	JBT04740-04745, 4747-4754, 4756-4758, 4760-4777, 4785-4804, 4809-4810, 4812

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*****Group 2*****
336D L	M4T02694-02725, 2727-2728, 2744, 2748-2750, 2757-2784, 2786-2787, 2791-2793, 2824

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
2	1P3705	SEAL-RECTANGULAR
1	3597188	STOP-EXTENSION
1	3751733	KIT-SEAL
1	BULK_OIL	HYDRAULIC FLUID - 5 U.S. GALLON
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 6% 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*****
2	1P3705	SEAL-RECTANGULAR
1	3597188	STOP-EXTENSION
1	3751733	KIT-SEAL
1	BULK_OIL	HYDRAULIC FLUID - 5 U.S. GALLON
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 6% 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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Before performing any service on the machine refer to the Disassembly and Assembly, remove and install procedures, that are appropriate for the particular machine being serviced.

If machine is determined to have an abnormal noise, remove the stick cylinder from the machine and replace the extension snubber.

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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%
*****Group 1*****
0-4000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 10.0-hour job for Group 1

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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*****
0-4000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%