PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE HYDRAULIC FAN MOUNTING HARDWARE ON CERTAIN 993K WHEEL LOADERS THAT ARE EQUIPPED WITH THE HIGH AMBIENT COOLING ARRANGEMENT
Usage:
REBE6063-01
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| 29Apr2010 |
| (Revised 07Dec2010) |
U-149
A-399
D-131
O-137
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| Priority | PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE HYDRAULIC FAN MOUNTING HARDWARE ON CERTAIN 993K WHEEL LOADERS THAT ARE EQUIPPED WITH THE HIGH AMBIENT COOLING ARRANGEMENT |
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| 1356 | PI31739 |
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| NOTE: | This Program must be administered as soon as possible. When reporting the repair, use "PI31739" 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 "PI31739" 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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| NOTE: | This Revised Service Letter replaces the 29Apr2010 Service Letter. Changes have been made to add "A" to the Mail Codes. |
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COMPLETION DATE |
TERMINATION DATE |
| 31Oct2010 | 30Apr2011 |
PROBLEM
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| The fan mounting hardware needs to be replaced on certain 993K Wheel Loaders that are equipped with the high ambient cooling arrangement. The existing bolt can loosen or fracture, causing the fan to separate from the fan motor. |
AFFECTED PRODUCT
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| Model | Identification Number |
| 993K | LWA00422-00424, 426, 429 Z9K00269, 271, 274-277, 279-285, 289, 292, 294, 297-299, 302, 304-305, 309-311, 318, 321-323, 325, 329, 333, 335, 343-348, 350-352, 354-362 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 1 | 7X2555 | BOLT |
| 1 | 1713010 | WASHER-HARD |
| 1 | PLATE | DEALER FABRICATED |
| 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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| 1. Remove the hydraulic fan and motor. Refer to Disassembly and Assembly Manual, KENR5813, "Fan and Piston Motor (Hydraulic Fan) - Remove". 2. Remove and discard the 7X-2554 Bolt, 7X-0540 Washer and 198-4780 Washer. 3. Fabricate a new mounting plate per Image 1. Use T1 steel (650 MPa yield strength) or equivalent. 4. Apply a small amount of Red Loctite-271 (CAT Part Number 155-0695) inside the motor shaft hole. Attach the fan to the adaptor using the 7X-2555 Bolt, the new mounting plate and 171-3010 Washer. Tighten the bolt to a torque of 240 Nm. Refer to Image 2. 5. Install the hydraulic fan and motor. Refer to Disassembly and Assembly Manual, KENR5813, "Fan and Piston Motor (Hydraulic Fan) - Install". |
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| Image1 |
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| Image2 |
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 6.0-hour job | |||||
| $100 US Dollars is allowed for fabrication of the new mounting plate. |
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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 - PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE HYDRAULIC FAN MOUNTING HARDWARE MODELS INVOLVED - 993K WHEEL LOADERS THAT ARE EQUIPPED WITH THE HIGH AMBIENT COOLING ARRANGEMENT Dear Caterpillar Product Owner: The fan mounting hardware needs to be replaced on the products listed below. The existing bolt can loosen or fracture, causing the fan to separate from the fan motor. 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 29Apr2010 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 29Apr2010 Service Letter |
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