PRODUCT SUPPORT PROGRAM FOR REPLACING THE 148-2963, 148-2962, AND 106-7372 HOIST LINE RELIEF VALVE ON CERTAIN 770G, 772G, 773G, 775G, AND 777G OFF-HIGHWAY TRUCKS
Usage:
REBE9454-01
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| 31May2013 |
| (Revised 11Jun2013) |
U-230
A-155
D-200
O-200
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| After Failure Only | PRODUCT SUPPORT PROGRAM FOR REPLACING THE 148-2963, 148-2962, AND 106-7372 HOIST LINE RELIEF VALVE ON CERTAIN 770G, 772G, 773G, 775G, AND 777G OFF-HIGHWAY TRUCKS |
|
| 5069 5117 5051 | PS52455 |
|
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| NOTE: | This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS52455" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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 31May2013 Service Letter. Changes have been made to the Affected Product. |
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TERMINATION DATE |
| 31May2015 |
PROBLEM
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| The existing 148-2963 or 148-2962 Raise Hoist Relief Valves and 106-7372 Lower Hoist Relief Valve can lose the factory pressure settings on certain 770G, 772G, 773G, 775G, and 777G Off-Highway Trucks. If the existing raise hoist relief valves fail they can be replaced with new 4168724/">416-8724 either/or 4230466/">423-0466 Raise Hoist Relief Valves. If the existing lower hoist relief valves fail, it can be replaced with new 4224594/">422-4594 Lower Hoist Relief Valves. |
AFFECTED PRODUCT
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| Model | Identification Number |
| *******Group 1******* | |
| 775G | MJS00123, 273-371 RFM00251-00605 |
| 775G OEM | T5F00101 T5W00101-00110 |
| 777G | RDR00102-00264 TNM00101-00700 |
| 777G OEM | M6J00100-00122 T4Y00100-00174 T5A00100-00116 |
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| *******Group 2******* | |
| 770G | ECM00151-00213 KDH00202-00204 |
| 772G | KEX00101, 103-104 LTS00250-00305 |
| 773G | JWS00162-00237 MWH00151-00332 |
| 773G OEM | T5S00101-00122 T5T00101-00102 |
PARTS NEEDED
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Qty |
Part Number | Description |
| *******Group 1******* | ||
| 1 | 4168724 | VALVE GP-D RLF-A |
| 1 | 4224594 | VALVE GP-D RLF-A |
| 1 | 4230466 | VALVE GP-D RLF-A |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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. | ||
| *******Group 2******* | ||
| 1 | 4168724 | VALVE GP-D RLF-A |
| 1 | 4224594 | VALVE GP-D RLF-A |
| 1 | 4230466 | VALVE GP-D RLF-A |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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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| In the case of slow hoist raise times or no movement when the hoist circuit is commanded replace: 1-Existing 148-2963 Hoist Relief with new 4168724/">416-8724 Hoist Relief Valve. 2-Existing 148-2962 Hoist Relief with new 4230466/">423-0466 Hoist Relief Valve. In the case of slow hoist lower times or no movement when the hoist circuit is commanded replace 106-7372 Lower Hoist Relief Valve with a new 4224594/">422-4594 Lower Hoist Relief Valve. Note: It is only necessary to replace the single valve that has had a pressure drop. Those relief valves that have not experienced pressure drop do not need to be replaced. |
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SERVICE CLAIM ALLOWANCES
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| *******Group 1******* | ||||||
0-24 mo |
||||||
25-48 mo |
||||||
| NOTE: This is a 1.0-hour job for Group 1 | ||||||
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| *******Group 2******* | ||||||
0-36 mo |
||||||
37-48 mo |
||||||
| NOTE: This is a 1.0-hour job for Group 2 | ||||||
PARTS DISPOSITION
| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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