PRODUCT SUPPORT PROGRAM FOR REWORKING THE STEERING CLUTCH AND BRAKE GROUP ON CERTAIN D10T TRACK-TYPE TRACTORS
Usage:
REBE2722-00
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23Oct2007 |
U-533
A-436
D-434
O-465
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After Failure Only | PRODUCT SUPPORT PROGRAM FOR REWORKING THE STEERING CLUTCH AND BRAKE GROUP ON CERTAIN D10T TRACK-TYPE TRACTORS |
|
4101 4100 | PS51376 |
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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 "PS51376" 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 |
31Oct2009 |
PROBLEM
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The existing steering clutch and brake group can experience intermittent brake lockups or dragging brakes on certain D10T Track-Type Tractors. These parts should be reworked in a timely manner according to the attached rework procedure to prevent further brake system damage or contamination to the powertrain oil system. |
AFFECTED PRODUCT
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Model | Identification Number |
D10T | RJG00003-00004, 105-1212 |
PARTS NEEDED
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Qty |
Part Number | Description |
6 | 2M5656 | NUT |
6 | 4F7389 | SEAL-O-RING |
6 | 5P5422 | BOLT |
6 | 5P8250 | WASHER |
2 | 6P5317 | RING-SEAL |
2 | 6T2037 | RING-SEAL |
4 | 7T0998 | BOLT-TRACK |
4 | 7T0999 | BOLT-TRACK |
2 | 8D4771 | SEAL-O RING |
4 | 8M4389 | SEAL-O RING |
6 | 9G2991 | RING-SEAL |
2 | 9H3360 | SEAL-O RING |
ACTION REQUIRED
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If the failed piston and retainer parts have not previously been slotted then refer to the attached Rework Procedure to perform the repair. If the failed piston and retainer parts have previously been slotted, then please work through your dealer Technical Communicator to submit this information to the DSN (Dealer Solution Network) for information necessary to complete any repairs prior to proceeding. |
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SERVICE CLAIM ALLOWANCES
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0-60 mo |
||||||
61-120 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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1. Separate the tracks and remove the left and right steering clutch and brake groups. 2. Disassemble the steering clutch and brake groups. Remove the steering clutch from the brake module without disassembling the steering clutch. Remove 106-0476 retainer (1) and 237-0930 piston (2) from both the left and right brake groups as shown in Image 1.1.1. Refer to RENR8166 for disassembly and assembly information. |
Image1.1.1 |
3. Modify the retainers to add four notches in each part at 90? intervals as shown in images 1.2.1 and 1.2.2. Modify the pistons to add four notches in each part at 90? intervals as shown in images 1.2.3 and 1.2.4. The notches should be 2 +/- .25 mm (0.079 +/- 0.010 inch) deep with a 6.35 mm (0.250 inch) radius as shown in Image 1.2.5. Be sure to thoroughly clean and deburr all parts after machining. |
Image1.2.1 |
Image1.2.2 |
Image1.2.3 |
Image1.2.4 |
Image1.2.5 |
Image 1.3.1 shows a 106-0476 retainer with the slots completed. Image 1.3.2 shows a 237-0930 piston with the slots completed |
Image1.3.1 |
Image1.3.2 |
4. Replace the existing 6P-5317 (3), 6T-2037 (4), 4F-7398 (5), 9G-2991 (6), 8M-4389 (7), and 9H-3360 (8) seals inside of each brake module with new seals as shown in Image 1.4.1. Also replace the existing 8D-4771 seal between the brake module and final drive with a new seal. |
Image1.4.1 |
5. Reassemble both steering clutch and brake groups and reinstall on the tractor. 6. Upon reinstallation of both final drives on the tractor, use the 5P-5422 bolts, 2M-5656 nuts, and 5P-8250 washers to reattach the sprocket segments if they were previously removed. 7. Reconnect the track on the machine using the new 7T-0998 and 7T-0999 master links bolts. 8. Perform the brake touchup calibration and steering clutch high pressure calibration using Caterpillar Electronic Technician (Cat ET) after the machine is fully reassembled. |
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