PRODUCT SUPPORT PROGRAM FOR REWORKING THE EXCITER ROTOR ON CERTAIN 3512, AND 3512B GENERATOR SETS
Usage:
REBE8807-01
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| 30Aug2012 |
| (Revised 08Oct2012) |
O-425
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| After Failure Only | PRODUCT SUPPORT PROGRAM FOR REWORKING THE EXCITER ROTOR ON CERTAIN 3512, AND 3512B GENERATOR SETS |
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| 4457 | PS52280 |
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| 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. |
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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 30Aug2012 Service Letter. Changes have been made to the Title, Problem, Affected Product, and Service Claim Allowances. |
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TERMINATION DATE |
| 31Aug2014 |
PROBLEM
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| 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
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| 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
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| No parts needed for this program |
ACTION REQUIRED
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| 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. |
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SERVICE CLAIM ALLOWANCES
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0-60 mo |
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| NOTE: This is a 36.0-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. |
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