PRODUCT SUPPORT PROGRAM FOR REPLACING THE "A" PORT PLUG AND THE BREATHER BOLT ON CERTAIN H180D S HYDRAULIC HAMMERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE "A" PORT PLUG AND THE BREATHER BOLT ON CERTAIN H180D S HYDRAULIC HAMMERS

Usage:

REBE4871-00

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18Feb2009

U-73

A-63

D-60

O-62

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE "A" PORT PLUG AND THE BREATHER BOLT ON CERTAIN H180D S HYDRAULIC HAMMERS
6333		PS42888

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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 "PS42888" 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

28Feb2011

PROBLEM

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The current vent location on the plug located in the "A" Port causes grease to overflow and contact the side buffers. The side buffers are made of a rubber material. Petroleum products, such as grease and oil, can cause accelerated deterioration of the rubber side buffers.

AFFECTED PRODUCT

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Model	Identification Number
H180DS	BXP00155-00177, 179-222, 226, 230-232

PARTS NEEDED

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Qty	Part Number	Description
1	3J1907	SEAL-O-RING
1	9S8004	PLUG-HEX SOCKET
1	3087081	BREATHER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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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During the rebuild of the hammer, inspect the venting locations. Refer to the following procedure to ensure proper grease venting.

Refer to the appropriate service manual as necessary.

Note: The impact chamber must be vented. Do not install a plug on vent port "A" without validating the bolt has the correct drilled passage on seal carrier. Damage to the wiper seal will result in needing to reseal / rebuild the hammer in order to stop oil leaks.

(see Illustration 1)

1. During routine scheduled rebuild. Remove hammer from housing.
2. Remove drilled plug (1) that is installed in port "A".
3. Install 3J-1907 Seal-o-ring to new 9S8004 Plug. Apply 9S-3263 Thread Lock compound to the threads of the plug and install the plug into port "A".
4. Remove breather bolt (2). Do not discard lock washers.
5. Install lock washers on new 308-7081 Breather Bolt. Apply 9S-3263 thread lock compound onto breather bolt and install into seal carrier.

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Image1

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%
0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%