| NO | Number | Name | Qty |
| 0 | 9258047 | Solenoid Hydraulic Valve | 1 |
| 2 | 9761179 | PLUG | 4 |
| 3 | 9228828 | PLUG | 1 |
| 4 | 9239590 | Solenoid Hydraulic Valve | 4 |
| 4F | 4614764 | O-RING | 1 |
| 4G | 19M7600 | SCREW | 2 |
| 4H | 4614703 | O-RING | 1 |
| 4] | 4614702 | O-RING | 1 |
| 4K | 4614701 | O-RING | 1 |
| 5 | 3095882 | PLUG | 14 |
| 6 | 3094771 | PLUG | 3 |
| 8 | M491832 | SCREW | 2 |
Q: What are symptoms of a failing 9239590 rotary solenoid on a Hitachi ZX250-3?
A: Common signs include sluggish or weak swing rotation, upper structure drifting on slopes, swing brake failing to release properly, or jerky swing movements. This 24V solenoid controls pilot pressure for the swing priority and swing brake circuits.
Q: Will the 9239590 fit my Hitachi ZAXIS160LC-3 excavator?
A: Yes, the 9239590 24V rotary solenoid is a direct fit for Hitachi ZAXIS120-3, ZAXIS160LC-3, ZX250-3, ZX280-3, and ZAXIS450-3 excavators. It is commonly located on the pilot control manifold or swing motor pilot block.
Q: How do I confirm if my Hitachi excavator uses a 24V or 12V system?
A: Hitachi ZAXIS-3 series excavators operate on a 24V electrical system (two 12V batteries in series). Always verify voltage at the solenoid connector before ordering. Installing a 12V valve in a 24V system will cause immediate coil failure.
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