Recommended hot-selling HPV145-15T hydraulic pump, compatible with models ZAX330-3/ZAX360-3
Function: It's the "heart" of the excavator, responsible for converting engine power into hydraulic oil pressure, enabling the entire machine to move. In other words, it provides high-pressure hydraulic oil to drive all excavator movements: boom raising and lowering, stick extension and retraction, bucket digging, rotation, and travel.
Quality Assurance: OEM quality, durable, stable performance, and comes with a 12-month warranty.
Troubleshooting: Of course, you can also check it yourself first.
- Oil Level and Quality: Check if the hydraulic oil level in the tank is too low. Observe if the oil is black (high-temperature deterioration), white (water emulsification), or contains air bubbles (air intake).
- Suction Filter: If the suction filter is clogged, it will cause the pump to "suck air," emitting a harsh whistling sound accompanied by vibration.
- Sealing: Check the oil inlet hose between the oil tank and the hydraulic pump for damage, aging, or loose clamps.
- Measure the pilot pump pressure: The pilot pressure of an excavator should typically be around $3.5 MPa - $4.0 MPa. If the pilot pressure is too low, even if the main pump is working properly, the regulator will not receive the signal to change the displacement, resulting in slow machine operation.
- Pressure setting: Often, the pump pressure cannot reach the required level because the main relief valve is faulty or the pressure setting is too low, causing the high-pressure oil to flow back to the tank before reaching the actuator. Try adjusting the relief valve to see if the main system pressure changes. If adjusting the relief valve has no effect, the problem is likely with the valve, not the pump.
Ample inventory: We have a certain amount of stock on hand, and once an order is placed, we promise to complete packaging and ship it within 3 business days. We support various transportation methods, including sea, land, and air, providing global delivery services to ensure parts arrive at your door as quickly as possible.
