Product Support Program For Replacing Or Reworking The Control Manifold Group On Certain 301.6C And 301.8C Mini Hydraulic Excavators Caterpillar

Product Support Program For Replacing Or Reworking The Control Manifold Group On Certain 301.6C And 301.8C Mini Hydraulic Excavators [REBE1559]

HYDRAULIC SYSTEM

MANIFOLD GP

Product Support Program For Replacing Or Reworking The Control Manifold Group On Certain 301.6C And 301.8C Mini Hydraulic Excavators

REBE1559-00

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27Feb2007

U-72

A-59

D-59

O-66

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING OR REWORKING THE CONTROL MANIFOLD GROUP ON CERTAIN 301.6C AND 301.8C MINI HYDRAULIC EXCAVATORS
5264		PS51270

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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 "PS51270" 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 AVSpare product analyst.

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TERMINATION DATE

28Feb2009

PROBLEM

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A squealing noise can sometimes occur when the left side console is in the raised position. The 244-6732 Control Manifold Group must be replaced with a 288-9885 Control Manifold Group in order to eliminate this noise. For Group 1 machines, the presence of the squealing noise is defined as a failure.

Some machines that were shipped with the new 288-9885 Control Manifold Group had a 274-9267 Orifice Plate missing. This does not intefere with correct operation of the system but it results in a rushing sound. This sound can be eliminated by installing the orifice plate. For Group 2 machines, the presence of the rushing sound is defined as a failure.

AFFECTED PRODUCT

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Model	Identification Number
*****Group 1*****
301.6C	JBB00301-01104
301.8C	JSB00303-01770, 1772-2028

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*****Group 2*****
301.6C	JBB01105-01185
301.8C	JSB02029-02155

PARTS NEEDED

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Qty	Part Number	Description
*****Group 1*****
1	2889885	CONTROL MANIFOLD GP
3	3J1907	SEAL-O-RING
1	3J7354	SEAL-O-RING
6	4J5477	SEAL-O-RING
1	6V8773	TEE-FACE SEAL
1	6V9849	ELBOW-SWIVEL
*****Group 2*****
1	2749267	PLATE-ORIFICE
1	3K0360	SEAL-O-RING

ACTION REQUIRED

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Group 1 machines are machines that might exhibit the squealing noise when the left side console is raised. If the squealing noise is present, replace the existing 244-6732 Control Manifold Group with a 288-9885 Control Manifold Group. Use the procedure that is described in Special Instruction, REHS3352.
Group 2 machines are machines that might have the rushing noise. If the rushing noise occurs, install a 274-9267 Orifice Plate in the control manifold group. Use the procedure that is described in Special Instruction, REHS3352.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 1*****
0-1500 hrs	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

NOTE: This is a 4.0-hour job for Group 1

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 2*****
0-1500 hrs	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%