ACCUMULATOR 6C4417 - Caterpillar

This is a 1.0-hour job
PARTS DISPOSITION
****Parts Stock****
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
****Affected Product****
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
Rework Procedure
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.