PRODUCT SUPPORT PROGRAM FOR REWORKING THE EXCITER ROTOR ON CERTAIN 3512, AND 3512B GENERATOR SETS Caterpillar


PRODUCT SUPPORT PROGRAM FOR REWORKING THE EXCITER ROTOR ON CERTAIN 3512, AND 3512B GENERATOR SETS

Usage:



REBE8807-01

30Aug2012
(Revised 08Oct2012)


O-425

 

After Failure Only

  
  

PRODUCT SUPPORT PROGRAM FOR REWORKING THE EXCITER ROTOR ON CERTAIN 3512, AND 3512B GENERATOR SETS

4457
PS52280
NOTE:

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52280" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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.

 
NOTE:

This Revised Service Letter replaces the 30Aug2012 Service Letter. Changes have been made to the Title, Problem, Affected Product, and Service Claim Allowances.


TERMINATION DATE

31Aug2014

PROBLEM

The existing 253-9802 Exciter Rotor may become loose on the rotor shaft on certain 3512, and 3512B Generator Sets with SR5 1400 frame generators. If the existing exciter rotor becomes loose, resultant damage to the generator and its components may occur. Rework of the exciter rotor and/or rotor assembly will be required if the exciter rotor becomes loose.

AFFECTED PRODUCT

Model Identification Number
3512  YAK00199-00200, 208-209, 214, 252-253, 255, 269, 271-275, 278-279, 282-283, 306-311, 313-314, 322-324, 360, 363, 365-368, 370, 375, 386-388, 417, 431, 434-438, 451, 453-457, 459, 461-463, 481-483, 486-490, 494, 499, 525-529, 531-532, 555-559, 562
3512B  YAM00192, 240-241, 243, 293-295, 465, 503, 516

PARTS NEEDED

No parts needed for this program

ACTION REQUIRED

1. Isolate the generator set before commencing any work on the unit, open generator set breaker, activate Emergency Stop, disconnect the battery cables and either disconnect or open the control circuit breaker for the AC power supply to the battery charger. Ensure all health and safety requirements are adhered to at all times. Also, ensure proper Lock Out-Tag Out procedures are followed at all times while work is being performed on the machine. Lock out generator operation and disconnect/lockout all power sources before commencing any work.

2. If there is evidence that the exciter rotor is loose, remove generator. Refer to Disassembly and Assembly, KENR5284 for SR5 instructions. The symptoms of a loose exciter rotor may include the following conditions: damaged main rotor lead cables and/or lugs, excessive vibration, abnormal noise.

3. Send generator to the Leroy Somer Service Center in Riyadh, Saudi Arabia for inspection, exciter rotor replacement or rotor assembly replacement if applicable. See below for contact information.

Latif Madampara
ARABIAN QUDRA CO.
EXIT 13, RABWA,
KHURAIS ROAD,
RIYADH, KSA.
TEL. 00966 1 4934557 X 227
FAX 00966 1 4934556
MOB. 00966 503105742

4. Reinstall generator and verify proper operation. Refer to Disassembly and Assembly, KENR5284 for SR5 instructions.

SERVICE CLAIM ALLOWANCES

Product smu/age whichever comes first
Caterpillar
Dealer Suggested
Customer Suggested
Parts %
Labor Hrs%
Parts %
Labor Hrs%
Parts %
Labor Hrs%
0-20000 hrs,
0-60 mo 
100.0%
100.0%
0.0%
0.0%
0.0%
0.0%
 NOTE: This is a 36.0-hour job



PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
 
 
 

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