PRODUCT SUPPORT PROGRAM FOR REPLACING THE RIDE CONTROL ACCUMULATOR HOSE ON CERTAIN 966H AND 972H WHEEL LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE RIDE CONTROL ACCUMULATOR HOSE ON CERTAIN 966H AND 972H WHEEL LOADERS

Usage:

REBE2762-01

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24Apr2008

(Revised 05May2008)

O-187

U-211

A-169

D-166

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE RIDE CONTROL ACCUMULATOR HOSE ON CERTAIN 966H AND 972H WHEEL LOADERS
5004 5057		PS42676

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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 "PS42676" 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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NOTE:	This Revised Service Letter replaces the 24Apr2008 Service Letter. Changes have been made to the Affected Product.

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TERMINATION DATE

30Apr2010

PROBLEM

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The existing hose assembly between the main valve and ride control accumulator can fail on certain 966H and 972H Wheel Loaders that are equipped with the Ride Control Attachment.

NOTE: The Affected Product for this Product Support Program includes machines that were not configured with the Ride Control attachment from the factory. This is to ensure machines with Field Installed Ride Control Kits are covered by the Program. If a machine doesn't have Ride Control Installed this Program is not applicable.

AFFECTED PRODUCT

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Model	Identification Number
966H	A6D00117-01722 A6G00117-03160 A6J00149-01034
972H	A7D00117-00673 A7G00117-01039 A7J00150-00302

PARTS NEEDED

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Qty	Part Number	Description
3	5K9090	SEAL-O RING
1	6V9854	ELBOW-SWIVEL
1	7M8485	SEAL-O-RING
1	8C3443	CONNECTOR
1	3255018	HOSE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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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Refer to the attached Rework Procedure.

NOTE: The Affected Product for this Product Support Program includes machines that were not configured with the Ride Control attachment from the factory. This is to ensure machines with Field Installed Ride Control Kits are covered by the Program. If a machine doesn't have Ride Control Installed this Program is not applicable.

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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%
0-4000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
4001-6000 hrs, 25-36 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%

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NOTE: This is a 2.0-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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1. Remove the existing hose and elbow between the ride control accumulator and main valve. See Image 1.1.1.

Image1.1.1

2. Install 8C-3443 Straight Connector with 7M-8485 Seal at the ride control accumulator. Tighten to a torque of 150 +/- 15 Nm (110 +/- 11 lbft). Install 5K-9090 Seal into the groove. See Image 1.2.1.

Image1.2.1

3. Install a 6V-9854 Elbow and tighten to a torque of 165 +/- 15 Nm (122 +/- 11 lbft). Install 5K-9090 Seal into the groove. The elbow should be oriented as shown in Image 1.2.1 angled slightly to the machine centerline.

4. Replace the existing 5K-9090 Seal at the main valve. Install the 90 degree end of the 325-5018 Hose to the main valve as shown in Image 1.2.1, but do not fully tighten. The orientation of this fitting will be adjusted later.

5. Install the straight end of the 325-5018 Hose to the elbow at the ride control accumulator. Ensure there is no assembly twist in the hose and tighten to a torque of 165 +/- 15 Nm (122 +/- 11 lbft). See Image 1.2.1.

6. Adjust the orientation of the 90 degree end of the 325-5018 Hose to ensure clearance between the hose, front frame plate, and lift tube. Tighten to a torque of 165 +/- 15 Nm (122 +/- 11 lbft). See Image 1.6.1.