The Pump Control Valve Has Been Improved on Certain Mini Hydraulic Excavators {5455}
- Mini Hydraulic Excavator:
- 303C (S/N: BXT1-UP)
- 303.5C (S/N: DMY1-UP)
- 304C (S/N: FPK1-UP)
- 305C (S/N: HWJ1-UP)
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| Illustration 1 | g01594915 |
The 279-4712 Pump Control Valve Gp can leak on certain mini hydraulic excavators. The leak is due to an error in the machining process. The leak can occur at the location of the seal (1) .
Replace the pump control valve if the pump control valve leaks at the location of the seal. Use the procedure that is described in Special Instruction, REHS4587, "Procedure for Installing Pump Control Valve on Certain Mini Hydraulic Excavators".
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| Affected Machines | |
| Affected Model | Affected Serial Numbers |
| 303C CR | S/N:BXT3651-3761,3763-3802,3804-3828,3833-3867,3870-3874,3880-3894,3896-3899 |
| 303.5C CR | S/N:DMY2393,2634-2679,2681-2689,2691-2692,2694-2727,2729-2750,2752-2779,2781-2792,2796 |
| 304C CR | S/N:FPK2325,5190-5234,5236-5413,5415-5430,5432-5438,5444,5446-5449,5451-5453 |
| 305C CR | S/N:HWJ3111-3148,3150-3173,3175-3232,3234-3246,3248,3250-3264,3266-3290,3292-3301,3304-3308 |
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