PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE STEERING COLUMN ON CERTAIN 980G, 980G SERIES II, AND 980H WHEEL LOADERS THAT ARE EQUIPPED WITH THE UNDERGROUND MINING ARRANGEMENT (UMA) Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE STEERING COLUMN ON CERTAIN 980G, 980G SERIES II, AND 980H WHEEL LOADERS THAT ARE EQUIPPED WITH THE UNDERGROUND MINING ARRANGEMENT (UMA)

Usage:

REBE6275-01

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13Jul2010

(Revised 06Aug2010)

O-220

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE STEERING COLUMN ON CERTAIN 980G, 980G SERIES II, AND 980H WHEEL LOADERS THAT ARE EQUIPPED WITH THE UNDERGROUND MINING ARRANGEMENT (UMA)
4304 4310		PI31769

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31769" 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 "PI31769" 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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NOTE:	This Revised Service Letter replaces the 13Jul2010 Service Letter. Changes have been made to add serial number MHG05229 to the Affected Product.

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COMPLETION DATE	TERMINATION DATE
31Jan2011	31Jul2011

PROBLEM

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The steering column needs to be reworked on certain 980G, 980G Series II, and 980H Wheel Loaders that are equipped with the Underground Mining Arrangement (UMA). The operator may tilt the steering column to far forward, which can cause the piston shaft inside the steering column to bend and possibly break. If the piston shaft bends or breaks, the steering column will be able to move to far forward, which can cause the steering wheel to lock itself causing a loss of steering control.

AFFECTED PRODUCT

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Model	Identification Number
980G	9CM01229, 1964, 2008, 2090, 2105, 2113, 2119
980G II	AXG01363, 1365, 1372, 1374, 1376, 1378, 1380, 1382, 1384, 1386, 1388, 1390, 1396, 1398, 1402, 1404, 1406, 1410, 1412, 1415-1416, 1418, 1421, 1423, 1428, 1431, 1502, 1505, 1508, 1511, 1514, 1517, 1520, 1523, 1526
980H	MHG05130, 5135, 5219, 5222, 5224, 5226-5232, 6001, 6005, 6008, 6010, 6013, 6017, 6021-6023, 6025, 6031

PARTS NEEDED

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Qty	Part Number	Description
1	3J1907	SEAL-O-RING (Do Not Order - See Action Required)
1	5C7261	NUT-HEX (Do Not Order - See Action Required)
2	3634247	WASHER (Do Not Order - See Action Required)
2	3634248	BOLT SHOULDER (Do Not Order - See Action Required)
1	3634249	PLATE (Do Not Order - See Action required)
Do not order the parts. All of the parts have been direct shipped to the dealership prior to the release of this service letter program.

ACTION REQUIRED

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Install a plate which will prevent the steering column from being pushed to far forward when using the steering column tilt function. Refer to the attached Rework Procedure.

NOTE: All of the parts have been direct shipped to the dealership prior to the release of this service letter program.

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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 2.0-hour job

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PARTS DISPOSITION

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Do not order these parts through the parts depots. All parts have been shipped to the dealership prior to the release of this program.

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 REWORKING THE STEERING COLUMN

MODELS INVOLVED - 980G, 980G Series II, and 980H Wheel Loaders that are Equipped with the Underground Mining Arrangement (UMA)

Dear Caterpillar Product Owner:

The steering column needs to be reworked on the products listed below. The operator may tilt the steering column to far forward, which can cause the piston shaft inside the steering column to bend and possibly break. If the piston shaft bends or breaks, the steering column will be able to move to far forward, which can cause the steering wheel to lock itself causing a loss of steering control. 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 13Jul2010 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 13Jul2010 Service Letter

Rework Procedure

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1) Remove the 7 8T-4970 Bolts and 4 8T-4138 Bolts.

2) Remove the parking brake retaining nut.

3) Remove the 256-2760 and 256-2768 Cover Assemblies.

Image1.1.1

4) Remove the 2 6V-5683 Bolts.

5) Remove the 114-5309 Cover.

Image1.2.1

6) Remove the 2 6V-5683 Bolts.

7) Remove the 114-5312 Cover.

Image1.3.1

8) Remove the 4 8T-1159 Bolts.

Image1.4.1

9) Move the 186-2303 Column Group on the side. Drill and tap one M8X1.25 hole. Refer to Image 1.5.2 for the location and dimension.

Image1.5.1

Image1.5.2

10) Install the 363-4249 Plate and 363-4248 Shoulder Bolt.

11) Install the 363-4248 Shoulder Bolt, 2 363-4247 Washers, and the 3J-1907 Seal. Apply grease between the shoulder bolts and plate. Refer to Image 1.6.2.