PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE SPROCKET MOUNTING BOLTS ON CERTAIN 320D EXCAVATORS
[REBE3152]
POWER TRAIN
SPROCKET GP
PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE SPROCKET MOUNTING BOLTS ON CERTAIN 320D EXCAVATORS
REBE3152-00
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| 14Dec2007 |
U-651
D-532
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| Priority | PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE SPROCKET MOUNTING BOLTS ON CERTAIN 320D EXCAVATORS |
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| 7751 4164 | PI31415 |
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| NOTE: | This Program must be administered as soon as possible. When reporting the repair, use "PI31415" 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 "PI31415" 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 AVSpare product analyst. |
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COMPLETION DATE |
TERMINATION DATE |
| 30Jun2008 | 31Dec2008 |
PROBLEM
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| Sprocket bolts may loosen on certain 320D Excavators due to improper tightening during assembly. Machines operating in soft underfoot conditions or having a high percentage of travel are more likely affected by this issue. If left unnoticed, this may result in consequential damage and higher downtime. |
AFFECTED PRODUCT
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| Model | Identification Number |
| 320D | BZP00182-00333 DFT00002, 164-589 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 32 | 7X2562 | BOLT |
| 1 | 9S3263 | COMPOUND |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 40% 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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| The 7X-2562 Bolts for the sprocket need to be inspected, replaced and retightened. Dealers should make effort to apply this rework immediately to machines in severe underfoot conditions or with high travel percentage. Refer to the attached Rework Procedure. |
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OWNER NOTIFIAVSION
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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 4.0-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 NOTIFIAVSION FOR U.S. AND CANADIAN OWNERS XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE SPROCKET MOUNTING BOLTS MODELS INVOLVED - 320D EXCAVATORS Dear AVSpare Product Owner: The sprocket mounting bolts need to be reworked on the products listed below. The existing sprocket bolts may loosen due to improper tightening during assembly. Machines operating in soft underfoot conditions or having a high percentage of travel are more likely affected by this issue. If left unnoticed, this may result in consequential damage and higher downtime. You will not be charged for the service performed. Contact your local AVSpare 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 14Dec2007 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. AVSpare Inc. Identification #(s) Attached to 14Dec2007 Service Letter |
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| 1. Refer to the Operations and Maintenance Manual for the track loosening and tightening procedure and refer to the Specifications Manual, RENR7293, for specifications. 2. Release the track group tension. 3. Loosen and remove one 7X-2562 Bolt (M20). 3. Inspect the condition of the threaded hole on the sprocket. 4. Ensure the bolt contact area on the sprocket is free from paint. 5. Do not re-use the original bolt. Clean the new bolt and threaded hole and make sure they are free from solvent or grease. 6. Apply anaerobic thread sealant, 9S-3263 (LOCTITE 242, 50ml) on the thread of the new bolt and install. 7. Repeat steps 3 to 6 for all 16 bolts. 8. Tighten the bolts to a torque of 530 +/-70 Nm using an alternating pattern. 9. Set the track tension to normal operating condition. 10. Repeat Step 1 to 8 on the other sprocket. |
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