PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING, AS NEEDED, THE FRONT WHEEL BOLTS ON CERTAIN 120M, 12M, 140M, AND 160M MOTOR GRADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING, AS NEEDED, THE FRONT WHEEL BOLTS ON CERTAIN 120M, 12M, 140M, AND 160M MOTOR GRADERS

Usage:

REBE5710-01

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10Dec2009

(Revised 16Dec2009)

U-429

A-351

D-382

O-385

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING, AS NEEDED, THE FRONT WHEEL BOLTS ON CERTAIN 120M, 12M, 140M, AND 160M MOTOR GRADERS
4201		PS43003

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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 "PS43003" 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 10Dec2009 Service Letter. Changes have been made to the Affected Product and Action Required.

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TERMINATION DATE

31Dec2011

PROBLEM

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The existing bolts can be stretched on certain 120M, 12M, 140M, and 160M Motor Graders. If an existing bolt is stretched, the bolt should be removed, the spindle threads cleaned and a new bolt installed.

AFFECTED PRODUCT

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Model	Identification Number
120M	B9C00130-00510 B9N00130-00268
12M	B9F00012-00644 B9R00012-00158
140M	B9D00125-02052 B9M00125-00900
160M	B9E00115-00379 B9L00115-00120, 150-443

PARTS NEEDED

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Qty	Part Number	Description
16	9X2615	BOLT-HEX HEAD (As Needed - See Note Below)
NOTE: Replace only as needed (historically 2-3 bolts per vehicle). ----------------------------------------- In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 12% 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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Inspect the bolts using Static Inspection Torque - (Inspection After Assembly) Static inspection torques are used to provide indication that proper assembly torque has been achieved. The following procedure is to be used only as an indication that minimum assembly requirements have been achieved.
1. Apply the static inspection torque in the tightening direction
2. The fastener, adapter, etc. shall not move when the static inspection torque is applied.

The torque applied should be equal to the minimum of the specified dynamic assembly torque range. For example: A bolt torque of 900 +/- 100 Nm will have a static torque spec of 800 Nm.

If any bolt turns at the minimum spec of the dynamic assembly torque range, remove the tire and rim attached by the bolt(s) that turn and remove any grease or wax from the mounting face of the rim, the spindle, and the spindle bolt hole threads.

Inspect the bolts per the Reuse and Salvage Guidelines for Inspection and Reuse of Drive Line Fasteners SEBF8728.

If the bolts meet the inspection guidelines, they may be reused after removing any wax or grease from the spindle face and bolt holes. If they do not meet the guidelines, or are stretched, only the bolts failing the inspection should be replaced (historically, 2-3 bolts per vehicle). In either case, the mounting face of the rim, the spindle, and the spindle bolt holes should be cleaned of any lubricants or contaminants.

If the bolts did not turn on the wheel, no further action is necessary for that wheel.

Lubrication - Torque values apply to components without the addition of any lubricant except for any rust preventive applied by the component supplier. Usually a light oil mist found on phosphate coated bolts.

The use of anti-seize compounds, rust preventatives, or other lubricants is not allowed because it will cause bolt over stretching. Tighten the bolts to the specified torque within the service manual. Refer to your machines Disassembly and Assembly Manual: KENR6419 for the 12M/120M; KENR6425 for the 140M; and RENR9726 for the 160M.

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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%
0-100 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%