PRODUCT SUPPORT PROGRAM FOR REPLACING THE 185-1897 PILOT PRESSURE REDUCING VALVE ON CERTAIN 988H, 992K, AND 993K LARGE WHEEL LOADERS
Usage:
REBE6765-00
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| 22Dec2010 |
U-517
A-424
D-454
O-454
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| After Failure Only Parts stock action needed | PRODUCT SUPPORT PROGRAM FOR REPLACING THE 185-1897 PILOT PRESSURE REDUCING VALVE ON CERTAIN 988H, 992K, AND 993K LARGE WHEEL LOADERS |
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| 5117 5467 | PS51953 |
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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 "PS51953" 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: | 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. |
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| 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. |
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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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TERMINATION DATE |
| 31Dec2012 |
PROBLEM
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| The existing 185-1897 Pilot Pressure Reducing Valve can fail on certain 988H, 992K, and 993K Large Wheel Loaders. If the existing 185-1897 Pilot Pressure Reducing Valve fails it can cause excessive noise while operating the implements. It can also cause excessive drift of the Lift Arms (Boom). If the pilot system is overpressurized as the result of a failure it may also cause external leaks from the pilot circuit due to overpressurization of seals. |
AFFECTED PRODUCT
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| Model | Identification Number |
| 988H | BXY04000-04025, 4027-4045, 4048-4049, 4052-4054, 4056-4057, 4059-4125, 4127-4142, 4144-4158, 4160-4178, 4180-4185, 4188, 4191-4192, 4195, 4198-4205, 4207-4212, 4214-4217, 4219, 4221-4223, 4228-4230, 4234-4237 |
| 992K | H4C00406-00455, 457, 460, 462-465, 467-471, 477-479 |
| 993K | Z9K00365-00379, 382-383 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 1 | 3700438 | VALVE GP-PRESS-B |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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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Remove all 185-1897 Pilot Pressure Reducing Valves from dealer parts stock. |
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| Refer to your machines service manual if/as needed for Parts Identification as well as Removal and Installation Guidelines. Replace the existing 185-1897 Pilot Pressure Reducing Valve with new 370-0438 Pilot Pressure Reducing Valve. |
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SERVICE CLAIM ALLOWANCES
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|
Submit one claim for all parts removed from dealer parts stock. |
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0-24 mo |
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| NOTE: This is a 1.0-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. |
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| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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