PRODUCT SUPPORT PROGRAM TO REPLACE THE 194-0820 BLOCK ON CERTAIN 330D L, 336D L, AND 330D MH FCR EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM TO REPLACE THE 194-0820 BLOCK ON CERTAIN 330D L, 336D L, AND 330D MH FCR EXCAVATORS

Usage:

REBE4657-00

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22Dec2008

U-660

A-548

D-562

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*After Failure Only*	PRODUCT SUPPORT PROGRAM TO REPLACE THE 194-0820 BLOCK ON CERTAIN 330D L, 336D L, AND 330D MH FCR EXCAVATORS
5057		PS51612

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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 "PS51612" 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

31Dec2011

PROBLEM

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The existing block that combines boom 1 and boom 2 oil, on certain 330D and 336D Excavators may have been incorrectly manufactured. The seal groove depth may be incorrect. This incorrect operation may cause this part to leak at the plug. Blocks that are found to be leaking will need to be replaced with a new block and plug.

AFFECTED PRODUCT

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Model	Identification Number
330D L	MWP02414-03385 R2D00201-00284
330D MH FCR	LEM00208-00234
336D L	J2F00154 W3K00201-00211, 213

PARTS NEEDED

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Qty	Part Number	Description
1	7M8485	SEAL-O-RING
1	9S4181	PLUG-O-RING
1	1940280	BLOCK
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 4% 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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Affected boom combiner blocks will need to be replaced. Refer to the attached Rework Procedure.

NOTE: The block that combines boom 1 and boom 2 oil in Caterpillar parts or dealer inventory are not affected by this issue. The issue only applies to the boom combiner block assemblies installed at the factory on the affected product.

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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%
0-2000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
2001-4000 hrs, 13-24 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%

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NOTE: This is a 1.0-hour job

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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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Prior to starting any work on the machine, please review, understand and adhere to all safety and environmental warnings in the applicable Operation and Maintenance Manual.

1. Relieve the hydraulic system pressure. For more information refer to Operating and Maintenance Manual, SEBU8046.

2. Looking from the swing drive area on the machine, locate the leaking block on the front of the main valve.

Image1.1.1

3. Loosen the 4 bolts and remove the hose from the block.

Image1.2.1

4. Remove the 4 bolts from the leaking block.

Image1.3.1

5. Install a new block and plug. The new plug seal should fit tightly in the block to provide the correct sealing surface.

6. Re-Install the hose.

7. Check the new block and plug for loose connections and leaks.