Before/After
Parts stock action needed
| PRODUCT SUPPORT PROGRAM FOR UPDATING THE HOIST CIRCUIT ON CERTAIN 795F AC AND 795F XQ OFF-HIGHWAY TRUCKS |
4070 7750 5066 5051
|
PS44948 |
NOTE: |
Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
|
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 "PS44948" 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. |
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,
"7755" as the Group Number, "56" as the Description Code. |
NOTE: |
Although this Program is to be administered as described above on the Affected Product,
parts should be removed from parts stock as soon as possible. |
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. |
|
NOTE: |
This Revised Service Letter replaces the 18Dec2015 (Revised 12Jan2016) Service Letter. Changes have been made to Parts Needed and Affected Product. |
The existing hoist hydraulic circuit can experience high pressure spikes during normal hoisting and or bed stall on certain 795F AC and 795F XQ Off-Highway Trucks. The resulting pressure spikes can damage or fail the front wheel Duo-Cone Seals. |
Qty |
Part Number |
Description |
1 |
2S4071 |
SEAL-O RING (After Failure Only) |
1 |
3D2824 |
SEAL-O-RING-STOR |
1 |
3J1907 |
SEAL-O-RING-STOR |
1 |
4H6730 |
SEAL-O-RING (After Failure Only) |
1 |
5P9519 |
SEAL-O RING (After Failure Only) |
1 |
6V3689 |
SEAL-O RING (After Failure Only) |
1 |
6V8001 |
SEAL-O-RING |
1 |
6V8724 |
ADAPTER-ELBOW 90 |
1 |
7K2828 |
CLIP |
1 |
7X4781 |
SEAL-O RING (After Failure Only) |
1 |
8M4436 |
SEAL-O-RING (After Failure Only) |
3 |
8T0568 |
SEAL-O-RING |
4 |
8T4140 |
BOLT-HEX HEAD |
12 |
8T4184 |
BOLT-HEX HEAD |
12 |
8T4223 |
WASHER-HARD |
4 |
9X8257 |
WASHER-HARD |
1 |
0304606 |
SEAL-O-RING |
1 |
1237274 |
SEAL-RING (After Failure Only) |
1 |
1436387 |
SEAL-O-RING (After Failure Only) |
53 |
1461799 |
WASHER-HARD (After Failure Only) |
53 |
1470169 |
BOLT-HEX HEAD (After Failure Only) |
1 |
1508791 |
SEAL-O-RING (After Failure Only) |
1 |
1508793 |
RING-SEAL (After Failure Only) |
20 |
1779755 |
BOLT-HEX HEAD (After Failure Only) |
1 |
1804365 |
SEAL-O-RING (After Failure Only) |
1 |
1863712 |
SEAL-O-RING (After Failure Only) |
1 |
2147568 |
SEAL-O-RING-STOR |
2 |
2287089 |
SEAL-O-RING-ORFS |
1 |
2892270 |
SEAL-O-RING (After Failure Only) |
1 |
3144130 |
SEAL-GROUP (After Failure Only) |
1 |
3144134 |
SEAL GP-DUO CONE (After Failure Only) |
1 |
3409727 |
VALVE GP-CHECK-E |
1 |
3603682 |
PLUG-HD STOR |
1 |
3603692 |
PLUG-HD STOR |
1 |
4640589 |
VALVE GP-RLF -C |
1 |
4666675 |
TUBE AS |
1 |
4839526 |
ORIFICE-DISC |
1 |
4839527 |
PLUG |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 22% 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.
|
****Parts Stock **** |
Rework all 302-8414 Diverter Valve Groups and 305-2603 Control Valve Groups (Hoist) in dealer parts stock. |
|
|
****Affected Product**** |
Refer to SEHS0321, Special Instruction, "Procedure to Update Hoist Lines Control Valve Group and Diverter Valve Group on Certain 795F AC Off-Highway Trucks", for instructions on reworking the components within the hoist/brake cooling system. |
****Parts Stock**** |
Submit one claim for all parts reworked from dealer parts stock.
|
|
|
****Affected Product**** |
Product smu/age whichever comes first |
Caterpillar |
Dealer Suggested |
Customer Suggested |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
Parts % |
Labor Hrs% |
0-12000 hrs, 0-24 mo |
100.0% |
100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
12001-18000 hrs, 25-36 mo |
53.0% |
50.0% |
0.0% |
0.0% |
35.0% |
50.0% |
NOTE: This is a 14.0-hour job
If there has been a previous repair, part age/hours will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.
|
NOTE: After a duo cone seal failure, an additional 30.0 labor hours are allowed to replace the duo cone groups.
NOTE: Designate in the "Additional Comments" section of the claim whether it is a left or right, and if Before Failure or After Failure. |
****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. |