PRODUCT IMPROVEMENT PROGRAM FOR INSPECTION OF THE FRONT GEAR TRAIN BOLTS ON CERTAIN C175-16 GENSETS
Usage:
REBE6300-00
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| 02Aug2010 |
U-291
A-224
D-250
O-254
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| Priority | PRODUCT IMPROVEMENT PROGRAM FOR INSPECTION OF THE FRONT GEAR TRAIN BOLTS ON CERTAIN C175-16 GENSETS |
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| 1151 1162 1206 7553 | PI31780 |
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| NOTE: | This Program must be administered as soon as possible. When reporting the repair, use "PI31780" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31780" as the Part Number, "7751" as the Group Number, "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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COMPLETION DATE |
TERMINATION DATE |
| 28Feb2011 | 31Aug2011 |
PROBLEM
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| The front gear train bolts on certain C175-16 generator sets may have inadequate torque that can lead to a gear train failure. |
AFFECTED PRODUCT
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| Model | Identification Number |
| C175-16 | WYB00153-00157, 159, 161-163, 166-230 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 1 | 9M3786 | SEAL-O RING |
| 1 | 2594598 | SEAL-O-RING |
| 2 | 2714928 | SEAL |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% 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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| Inspect the front gear train bolts for proper torque. Refer to the attached Rework Procedure. |
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OWNER NOTIFICATION
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| U.S. and Canadian owners will receive the attached Owner Notification. |
SERVICE CLAIM ALLOWANCES
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| NOTE: This is a 8.0-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. |
| MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE. |
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| COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - INSPECTION OF THE FRONT GEAR TRAIN BOLTS MODELS INVOLVED - C175-16 Generator Sets Dear Caterpillar Product Owner: The front gear train bolts needs to be inspected for adequate torque on the products listed below. The existing bolts may have inadequate torque and could cause a gear train failure. You will not be charged for the service performed. Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service. Please refer the dealer to their Service Letter dated 02Aug2010 when scheduling this service. We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime. Caterpillar Inc. Identification #(s) Attached to 02Aug2010 Service Letter |
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| 1. Refer to the C175 Disassembly & Assembly manual (RENR7466) for instructions on removal and installation of both the jacket water and auxiliary water pump (Image1.1.1). NOTE: Be careful not to damage the shaft of the water pump and the internal ceramic seal of the water pump |
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| Image1.1.1 |
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| Image1.1.2 |
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| Image1.1.3 |
| 2. Remove adapter and push shaft in drive toward rear of engine to allow access to the head of the bolts.(Image1.1.2 and Image1.1.3) |
| 3. Utilize a modified 8mm ball hex socket driver, (Snap-On Part Number: FABLM8E). The section of the driver shaft near the ball hex has been ground to remove the flats of the hex (Image1.3.1). Tighten all bolts on front gear train drive to the proper torque of 55Nm (41 lb ft) (Image 1.3.2). (Note if any bolts are loose). |
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| Image1.3.1 |
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| Image1.3.2 |
| 4. Reassemble the pumps and all connections, per the Disassembly and Assembly manual (RENR7466), carefully inspecting any of the water pump/adapter gaskets or seals for damage and replace as needed. 5. Fill the cooling system with the appropriate coolant to the correct level according to the Operation and Maintenance Manual. |
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