PRODUCT SUPPORT PROGRAM FOR REPAIRING BOOM CRACKS ON CERTAIN 304 CR AND 305 CR MINI HYDRAULIC EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPAIRING BOOM CRACKS ON CERTAIN 304 CR AND 305 CR MINI HYDRAULIC EXCAVATORS

Usage:

SEBE9473

January 23, 2006
U-37
A-29
D-33
O-32

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*After failure only*	PRODUCT SUPPORT PROGRAM FOR REPAIRING BOOM CRACKS ON CERTAIN 304 CR AND 305 CR MINI HYDRAULIC EXCAVATORS
6501		PS51047

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 "PS51047" 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.

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.

TERMINATION DATE

January 31, 2008

PROBLEM

The boom on certain 304 CR and 305 CR Mini Hydraulic Excavators can crack through the welds in the area of the arch plates and of the cylinder mountings. The boom welds can crack in difficult applications such as when digging in rocky or very hard ground. In cases where the welds are cracked, the boom can be repaired. In cases where the plates have separated and become permanently deformed, a new boom is necessary. Special Instruction REHS2801 contains some guidelines for determining if the boom is repairable.

AFFECTED PRODUCT

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Model	Identification Number
304 CR	NAD001-3474
305 CR	DSA001-99999 DGT001-1710

PARTS NEEDED

Group 1 Machines

A group 1 machine is any 304 CR and 305 CR machine where the boom is repairable.

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Qty	Part Number	Description
1	6V-8513	Washer
1	8T-4137	Bolt
1	223-3588	Pin Assembly

Additional dealer fabricated parts are required for the repair option. Refer to Special Instruction REHS2801.

Group 2 Machines

A group 2 machine is any 304 CR machine where the boom is not repairable.

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Qty	Part Number	Description
1	209-8167	Clamp
1	266-3843	Pin Assembly
1	270-6409	Pin Assembly
1	270-6449	Boom Assembly
1	271-9429	Clamp
1	272-6932	Tube Assembly
1	272-6933	Tube Assembly
1	272-6934	Tube Assembly
1	272-6935	Tube Assembly

Group 3 Machines

A group 3 machine is any 305 CR machine where the boom is not repairable.

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Qty	Part Number	Description
1	209-8167	Clamp
1	266-3843	Pin Assembly
1	270-6409	Pin Assembly
1	270-6413	Boom Assembly
1	271-9429	Clamp
1	272-6928	Tube Assembly
1	272-6929	Tube Assembly
1	272-6930	Tube Assembly
1	272-6931	Tube Assembly

ACTION REQUIRED

Inspect the boom fabrication and decide if repair is possible. Refer to Special Instruction REHS2801 for guidance. Repair or replace the boom as necessary. All of the necessary information for both the repair and replacement options are included in Special Instruction REHS2801.

NOTE: This program DOES NOT allow replacement of repairable booms.

SERVICE CLAIM ALLOWANCES

Group 1 Machines

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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	100%	13.0	0	0	0	0
2001-3000	33.3%	6.5	0	0	50%	6.5
NOTE: This is a 13.0-hr job including manufacturing of the plates and material.

Group 2 and Group 3 Machines

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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	100%	4.0	0	0	0	0
2001-3000	33.3%	2.0	0	0	50%	2.0
NOTE: This is a 4.0-hr job.