PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE EQUALIZER BAR CENTER PIN ON CERTAIN D7E TRACK-TYPE TRACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE EQUALIZER BAR CENTER PIN ON CERTAIN D7E TRACK-TYPE TRACTORS

Usage:

REBE7615-00

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01Dec2011

U-533

D-469

O-472

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE EQUALIZER BAR CENTER PIN ON CERTAIN D7E TRACK-TYPE TRACTORS
7207 7050 7051 7206		PI31956

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31956" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31956" as the Part Number, "7751" as the Group Number, "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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COMPLETION DATE	TERMINATION DATE
30Jun2012	31Dec2012

PROBLEM

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The existing equalizer bar center pin can fail on certain D7E and
D7E LGP Track-Type Tractors. If the existing pin fails it can cause damage to
the equalizer bar and the machine frame.

AFFECTED PRODUCT

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Model	Identification Number
D7E	MDB00115-00117, 119, 121-122, 126-147, 149-181, 183-210, 214-220, 222-224, 227-228, 230-231, 233, 237-238, 241-242, 245, 247, 258-269, 272-277, 279-292, 294-296 TAN00404, 408-416, 420-422, 425-429, 436-437
D7E LGP	SCG00117-00137, 139-143, 146-147, 151-153, 155-169 TJA00427, 431, 441, 445

PARTS NEEDED

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Qty	Part Number	Description
1	3348958	PIN AS.
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 38% 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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Replace the existing 302-2264 Equalizer Bar Center Pin with the new 334-8958 Center Pin.

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OWNER NOTIFICATION

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U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

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NOTE: This is a 6.0-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.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

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COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY ? Product Improvement Program for Replacing the Equalizer Bar Center Pin on Certain D7E and D7E LGP Track-Type Tractors

MODELS INVOLVED ? D7E and D7E LGP Track-Type Tractors

Dear Caterpillar Product Owner:

The equalizer bar center pin needs to be replaced on the products listed below. The existing pin can fracture and cause damage to the frame. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 01Dec2011 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 01Dec2011 Service Letter

Rework Procedure

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Remove Original Equalizer Bar Center Pin
1. Refer to KENR5606 "Equalizer Bar - Remove and Install" for required tooling.
2. Remove the Bottom Guard Assembly (1) behind the equalizer bar to access the equalizer bar center pin.
3. Use a suitable container to drain the engine oil from the flywheel housing oil pan(3). Remove plug (4). Remove flywheel housing oil pan (3).
4. Clamp the coolant hoses to generator. Drain generator coolant into a suitable container.
5. Remove fitting/valve (2) for clearance to tooling (C).
6. Raise the front of the D7E enough to release pressure on the center pin.
7. Place two stands under the front frame of the D7E to support the tractor.
8. Remove the bolt from the pin assembly (6). Use Tooling (C) to remove the pin assembly (6).

Image1.1.1

Image1.1.2

Image1.1.3

Install new Equalizer Bar Center Pin
1. Refer to KENR5606 "Equalizer Bar - Remove and Install" for required tooling.
2. Apply NLGI No. 2 grease (129-1938) to the bearing surfaces
3. Install the new 334-8958 Equalizer Bar Center Pin and retaining bolt.
4. Install the flywheel housing oil pan (3) and the oil pan plug (4).
5. Install coolant fitting/valve (2).
6. Refill engine oil and coolant. Refer to Operation and Maintenance Manual for the correct refill capacity.
7. Remove stands and lower the D7E to the ground.
8. Start machine and check for leaks.
9. Install the Bottom Guard Assembly.