PRODUCT SUPPORT PROGRAM FOR INSPECTION AND REPLACEMENT OF ALL THE DRIVE SPROCKET BOLTS (LH AND RH SIDE) ON CERTAIN 320D AND 320D 2 EXCAVATORS
Usage:
TEBE0720-02
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| 11Dec2013 |
| (Revised 17Apr2014) |
D-510
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| Before/After | PRODUCT SUPPORT PROGRAM FOR INSPECTION AND REPLACEMENT OF ALL THE DRIVE SPROCKET BOLTS (LH AND RH SIDE) ON CERTAIN 320D AND 320D 2 EXCAVATORS |
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| 4164 | PS44122 |
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| NOTE: | This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS44122" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "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 11Dec2013 (Revised 13Dec2013) Service Letter. Changes have been made to the Affected Product, Parts Needed, Action Required, and Rework Procedure. |
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TERMINATION DATE |
| 31Dec2014 |
PROBLEM
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| The final drive sprocket mounting bolts do not have a correct clamping load with original torque of 520 +/- 60 N.m on certain 320D Excavators shipped from CIPL. If the problem is not detected early, the bolt may fall off which results in track misalignment. This could result in failure with significant repair cost. |
AFFECTED PRODUCT
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| Model | Identification Number |
| 320D | JPD00142-00261 |
| 320D 2 | DNP00252-00326 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 2 | 4579904 | KIT-FASTENERS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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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| Refer to the attached Rework Procedure. NOTE: Source the 457-9904 Bolt from India Distribution Center (IDC). |
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SERVICE CLAIM ALLOWANCES
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0-24 mo |
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| NOTE: This is a 0.5-hour job | ||||||
| 0.5 hours is allowed for inspection of all the bolts. An additional 2.0 hours will be allowed for replacement of the bolts after inspection. |
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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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| Tools Required: - Manual Torque Wrench with extension rod (range up to 600 N.m) with required socket - ECO Solvent - Degreasing agent/cleaning agent - Squeeze Bottle - Lint Free Cloth - General Tool Kit Rework for the Final Drive Right Hand Side: 1. Position the machine on a flat surface. Refer to Image1.1.1. |
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| Image1.1.1 |
| 2. Number the bolts from 1 to 16. 3. Remove the 7X-2562 Bolts in location 1 to 5. 4. Clean the thread holes of final drive with Eco solvent using a squeeze spray bottle in order to free dirt, dust and grease/oil traces. Caution: Ensure that the pre-coated bolts are free from dust and dirt. Do NOT clean the bolts with Eco solvent or any other degreasing agents. The bolts are already pre-coated. 5. Clean the bolt seating face using a lint free cloth. 6. Assemble the new 457-9904 Bolts. 7. Tighten the bolts to a pre-torque value of 270 N.m using a manual torque wrench. 8. Set the torque wrench to a target value of 520 N.m and perform the final tightening in the sequence of bolt number 1, 2, 3, 4, and 5. 9. Repeat Steps 4 to 8 for all the remaining bolts in the order of bolt number 2, 3, 4, 5, and up to 16. Refer to Image1.1.1. 10. Repeat the same procedure for final drive left hand side. |
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