PRODUCT SUPPORT PROGRAM FOR INSTALLING BEARING SLEEVE RETAINING BOLTS ON CERTAIN 3512B HD AND 3516C HD GENERATOR SETS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSTALLING BEARING SLEEVE RETAINING BOLTS ON CERTAIN 3512B HD AND 3516C HD GENERATOR SETS

Usage:

TEBE3391-00

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13Jul2015

U-361

D-302

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Before/After	PRODUCT SUPPORT PROGRAM FOR INSTALLING BEARING SLEEVE RETAINING BOLTS ON CERTAIN 3512B HD AND 3516C HD GENERATOR SETS
4456		PS44801

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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 "PS44801" 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

31Jul2017

PROBLEM

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The bolts that hold the bearing sleeve in place on the front bearing bracket may be missing on certain 3512B HD and 3516C HD Generator Sets. If the bolts are not installed the bearing sleeve can become dislodged and lead to possible rotor damage.

AFFECTED PRODUCT

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Model	Identification Number
3512B HD	YBC00127-00130
3516C HD	SKC00117, 119-120

PARTS NEEDED

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Qty	Part Number	Description
4	8T4121	WASHER-HARD
4	8T4185	BOLT-HEX HEAD
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 27% 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.

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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%
0-1000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 4.0-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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Refer to the Service Manual if/as necessary.

1. Uncouple the two bearing generator and push back to allow room to install the bearing sleeve retaining bolts. Refer to KENR5284, Disassembly and Assembly SR5 Electric Power Generation, for two bearing generator removal procedure.

2. Remove coupling from generator hub.

3. Reach through bearing bracket and install the 4 8T-4185 Bolts and 4 8T-4121 Washers into the holes in bearing sleeve, threading the bolts into the bearing bracket. Using either an inspection mirror or simply feeling for the holes. Refer to Image 1.3.1

Image1.3.1

4. Tighten each bolt to a torque of 55 +/- 10 N.m.

5. Reinstall the coupling on generator hub.

6. Reassemble the two bearing generator. Refer to KENR5284, Disassembly and Assembly SR5 Electric Power Generation, for two bearing generator install procedure.

7. Align generator. Refer to REHS1077, Alignment Of The Close Coupled Two-Bearing Generators.