PRODUCT SUPPORT PROGRAM FOR REPLACING THE CONVEYOR HEAD PULLEY SUPPORTS ON CERTAIN PM620 AND PM622 COLD PLANERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE CONVEYOR HEAD PULLEY SUPPORTS ON CERTAIN PM620 AND PM622 COLD PLANERS

Usage:

TEBE5638-00

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31Oct2017

U-592

A-424

O-498

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE CONVEYOR HEAD PULLEY SUPPORTS ON CERTAIN PM620 AND PM622 COLD PLANERS
6620 6621		PS45663

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

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 "PS45663" 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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TERMINATION DATE

31Oct2019

PROBLEM

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Improved conveyor head pulley supports are available to replace the existing 422-8392 Head Pulley Supports. The new supports improve the interface between the upper and lower conveyor halves when folded. The contact pressure is distributed over a larger surface area on the new supports. The new supports eliminate the current stop bolts. The new supports provide improved protection to the belt tension adjusting screws.

AFFECTED PRODUCT

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Model	Identification Number
PM620 HRC	JB900100-00124
PM622 HRC	JFC00101-00122
PM622 LRC	JCF00100

PARTS NEEDED

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Qty	Part Number	Description
1	5134565	PLATE AS-LH
1	5134566	PLATE AS-RH
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 18% 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 Service Manual if/as necessary.

The existing 422-8392 Head Pulley Supports may be replaced with the new supports. Remove existing 7X-2554 Stop Bolts and 8T-4132 Locknuts from the end of the conveyor.

Note: Lubricate drive motor splines with Loctite Moly Paste. Apply Loctite 243 to bearing set screws and tighten to a torque of 16.5 +/- 2Nm (12 +/- 1.5 ft/lbs). Check for proper tension and tracking of conveyor belt after installation of new supports.

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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%
0-2000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%