PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE TORQUE CONVERTER PUMP DRIVE GEAR MOUNTING NUT ON CERTAIN 777G OFF-HIGHWAY TRUCKS
Usage:
TEBE7892-00
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| 27Jul2018 |
A-323
O-392
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| Priority | PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE TORQUE CONVERTER PUMP DRIVE GEAR MOUNTING NUT ON CERTAIN 777G OFF-HIGHWAY TRUCKS |
|
| 5073 3105 3108 | PI32919 |
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| NOTE: | Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar. |
| NOTE: | This Program must be administered as soon as possible. When reporting the repair, use "PI32919" 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 "PI32919" 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 |
| 31Jan2019 | 31Jul2019 |
PROBLEM
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| The mounting nut holding the drive gear on the 350-9964 Pump may not have been properly tightened on certain 777G Off-Highway Trucks. This can cause the nut to come loose allowing the gear to misalign. |
AFFECTED PRODUCT
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| Model | Identification Number |
| 777G | TNM01056-01059, 1062, 1065, 1067, 1069, 1076, 1078, 1080, 1086 |
| 777G OEM | T4Y00507, 509-510 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 1 | 2613062 | GASKET |
| 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. |
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ACTION REQUIRED
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| Tighten the nut holding the drive gear on the 350-9964 Pump to the correct torque. See the attached Rework Procedure. |
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OWNER NOTIFICATION
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| Owners in the following countries will receive the attached Owner Notification: US Canada |
SERVICE CLAIM ALLOWANCES
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| NOTE: This is a 1.0-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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| EXAMPLE COPY OF OWNER NOTIFICATION XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE TORQUE CONVERTER PUMP DRIVE GEAR MOUNTING NUT ON CERTAIN 777G OFF-HIGHWAY TRUCKS MODELS INVOLVED - 777G Off-Highway Trucks Dear Cat Product Owner: The torque converter pump drive gear mounting nut needs to be tightened to the correct torque on the products listed below. The nut can come loose leading to loss of pump flow. You will not be charged for the service performed. Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service. If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 27Jul2018 when scheduling this service. We regret the inconvenience this may cause you, and urge you to have this service performed as soon as possible to prevent unscheduled downtime. Caterpillar Inc. Identification #(s) Attached to 27Jul2018 Service Letter |
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| Remove the 352-8912 Cover from the torque converter. |
 |
| Image1.1.1 |
| Using a 1-1/8 inch deep well socket, tighten the nut to a torque of 110+/-13 Nm (81+/-10 ft-lb). |
 |
| Image1.2.1 |
| Install a new 261-3062 Gasket and replace the cover. Tighten the cover bolts to a torque of 55+/-10 Nm (41+/-7 ft-lb). |
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