Usage:
28Feb2013 |
Priority Parts stock action needed | PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE REAR HYDRAULIC QUICK COUPLER LINES KIT ON CERTAIN F-SERIES BACKHOE LOADERS |
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5479 6700 7750 | PI32148 |
NOTE: | This Program must be administered as soon as possible. When reporting the repair, use "PI32148" 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 "PI32148" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code. |
NOTE: | When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the Description Code. |
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. |
COMPLETION DATE |
TERMINATION DATE |
31Aug2013 | 28Feb2014 |
PROBLEM
The main pressure 393-5107 Hose Assembly that is installed as part of the quick coupler kit needs to be replaced on certain F-series Backhoe Loaders. The existing hose is not made to the correct pressure rating, and could fail. Also, the hose is connected to the incorrect pressure port on the loader control valve, and needs to be relocated to the correct port. Kits that are held in dealer stock also need to be reworked. |
AFFECTED PRODUCT
Model | Identification Number |
420F IT | JWJ00151, 323, 380, 878 |
420F ST | SKR00363-00365, 367, 369, 371, 377, 383, 386, 388-391, 395, 398-399, 728, 880, 1110 |
428F | SJW00299 |
430F IT | RGS00185, 261, 263 |
430F ST | RDF00229 |
432F | LNR00182-00183, 187, 251, 254, 384-385, 388, 451-452 SEJ00197 |
PARTS NEEDED
Qty |
Part Number | Description |
1 | 3K0360 | SEAL-O-RING |
4 | 6V8397 | SEAL-O-RING-ORFS |
1 | 6V8723 | ADAPTER-ELBOW |
1 | 8C8988 | ADAPTER-ELBOW |
1 | 3685494 | HOSE AS |
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
All 393-0362, 393-0363, 393-0364, and 393-0365 Quick Coupler Kits in dealer stock needs to be reworked. From each kit, remove the 393-5107 Hose Assembly, 148-8318 Adapter Assembly, and 6V-8553 Swivel Nut. Replace the parts in the kit with the parts from the Parts Needed section. |
Refer to the attached Rework Procedure. |
OWNER NOTIFICATION
Owners in the following countries will receive the attached Owner Notification: US Canada |
SERVICE CLAIM ALLOWANCES
Submit one claim for each quick coupler kit that is reworked. Please ensure that the PSO (order number) for the kit is listed in the claim story. This is important because it will allow us to track which kits have been reworked. |
NOTE: This is a 1.0-hour job | |||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
EXAMPLE COPY OF OWNER NOTIFICATION XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE REAR HYDRAULIC QUICK COUPLER LINES MODELS INVOLVED - F-SERIES BACKHOE LOADERS Dear Cat Product Owner: The hydraulic quick coupler main pressure hose needs to be replaced on the products listed below. The existing hose could leak if over pressured. A new hose needs to be installed. 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 28Feb2013 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 28Feb2013 Service Letter |
1. Place the machine on level hard standing and lower all implements to the ground. 2. Release the hydraulic system pressure. Refer to the machines Operation and Maintenance Manual for this procedure. 3. Working under the machine, locate the loader control valve. This is located on the right hand chassis member. |
4. Remove the 393-5107 Hose Assembly, 148-8318 Adapter Assembly, 148-8433 Tee Adapter, and the 6V-8553 Swivel Nut. Refer to Image1.2.1. |
Image1.2.1 |
5. Install the 148-8374 Elbow Assembly (this includes one 6V-8723 Elbow, one 3K-0360 O-Ring, and one 6V-8397 O-Ring) into the "D" (steer) port of the loader valve and re-attach the 361-4655 Steering Hose to the elbow. Refer to Image1.3.1. |
Image1.3.1 |
6. Install two new 6V-8397 O-Rings to the 148-8433 Tee. 7. Install the 148-8371 Elbow assembly (this includes one 45 degree 8C-8988 Elbow and one 6V-8397 O-Ring) into the "P" port on the loader valve. 8. Connect the 148-8433 Tee Adapter and the new 368-5494 Hose Assembly to the adapter. Refer to Image1.4.1. 9. Connect the other end of the hose assembly to the original port where the 393-5107 Hose Assembly was connected. |
Image1.4.1 |
10. Check the machine for correct operation of the quick coupler and check for any leaks before returning the machine back to the customer. |