PRODUCT SUPPORT PROGRAM TO REPAIR CAMSHAFT LOBES AND LIFTERS IN CERTAIN 3500B SERIES MARINE ENGINES WITH A RATED SPEED OF 1200RPM
Usage:
REBE2071-00
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| 22Jun2007 |
U-286
A-232
D-241
O-259
TM-13
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| After Failure Only | PRODUCT SUPPORT PROGRAM TO REPAIR CAMSHAFT LOBES AND LIFTERS IN CERTAIN 3500B SERIES MARINE ENGINES WITH A RATED SPEED OF 1200RPM |
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| 1210 1209 1102 | PS51319 |
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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 "PS51319" 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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TERMINATION DATE |
| 30Jun2009 |
PROBLEM
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| Camshaft lobes and lifters may need to be replaced on certain 3500B Marine Engines. Pitting/spalling may occur on the injector lobe(s) affecting the performance of the engine. Eligibility Requirements: Caterpillar participation through this service letter will be dependent upon compliance by the end user with the following: 1. Ensure oil change intervals have not consistently exceeded published guidelines listed in the Operation and Maintenance Manual unless documented as per the Caterpillar Machine Fluids Recommendations SEBU6250 and Optimizing Oil Change Intervals PEDP8025. 2. Maintain engine oil soot levels at or below 120%. 3. Use a minimum of multi-grade API CG-4 engine oil. NOTE: This Program can only be administered after a failure occurs. Definition of a Before Overhaul FAILURE: 1. Loss of Performance. 2. Lobe Spalling (see Illustration 1). 3. Lifter wearout (see SEBF8191). 4. Pitting of the cam lobe. Definition of a FAILURE at Overhaul: FAILURE is defined adequately by the "Guideline for Reusable parts and Salvage Operations" "Visual Inspection of Camshafts" media number SEBF8146 and "Visual Inspection of Camshaft Roller Followers" media number SEBF8191. |
AFFECTED PRODUCT
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| Model | Identification Number |
| *******Group 1******* | |
| 3516B | 4BW00338-00570 |
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| *******Group 2******* | |
| 3512B | 2EZ00222-00355 2GW00239-00419 4TN00258-00827 |
PARTS NEEDED
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Qty |
Part Number | Description |
| *******Group 1******* | ||
| 1 | 0R8498 | CAMSHAFT AS-RH |
| 1 | 0R8499 | CAMSHAFT AS-LH |
| 1 | 0R8500 | CAMSHAFT AS-LH |
| 1 | 0R8501 | CAMSHAFT AS-RH |
| 16 | 10R3139 | LIFTER AS |
| 32 | 10R3140 | LIFTER AS |
| *******Group 2******* | ||
| 1 | 0R8494 | CAMSHAFT AS-RH |
| 1 | 0R8495 | CAMSHAFT AS-LH |
| 1 | 0R8496 | CAMSHAFT AS-LH |
| 1 | 0R8497 | CAMSHAFT AS-RH |
| 12 | 10R3139 | LIFTER AS |
| 24 | 10R3140 | LIFTER AS |
ACTION REQUIRED
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| Replace camshafts and lifters as required. Reference SEBF8146 for the camshaft reuse guidelines and SEBF8191 for the lifter reuse guidelines. Always use new, or lifters in like new condition on a new or remanufactured camshaft. During disassembly, always mark the lifter positions so they can be re-installed in the same location if reused. |
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|
| Image1 |
SERVICE CLAIM ALLOWANCES
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| *******Group 1******* | ||||||
0-69 mo |
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70-70 mo |
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71-71 mo |
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72-72 mo |
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| NOTE: This is a 50.0-hour job for Group 1 | ||||||
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| *******Group 2******* | ||||||
0-69 mo |
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70-70 mo |
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71-71 mo |
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72-72 mo |
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| NOTE: This is a 40.0-hour job for Group 2 | ||||||
PARTS DISPOSITION
| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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