Hydraulic Gear Pump Fault Analysis and Solutions

During the working process of hydraulic gear pump, there are often small flow, no oil absorption, low pressure, big noise, oil leakage, overheating, abnormal operation of oil pump or bite as these faults may be Hydraulic gear pump efficiency greatly affected, then the hydraulic gear pump failure analysis and the corresponding solutions are introduced.loader pilot valve.

 Hydraulic gear pump failure analysis and solutions 1, gear pump does not absorb oil or traffic Glitch analysis: (1) oil absorption position is too high or oil level is not enough. (2) gear pump top circle and the pump body bore radial clearance is too large, gear side and front and rear cover end clearance too large. (3) gear pump lax. The solution: (1) fill the oil tank to reduce the suction position. (2) replace the pump body. (3) Replace the sealing element and fasten the connecting piece. 2, the lack of pressure Failure Analysis: (1) gear pump radial clearance and axial clearance is too large, of which the impact of the gap greater. (2) Teeth crack, or a leak. (3) oil viscosity is too high or oil temperature is too high. Solution: (1) replace the pump body. (2) If the leakage is in the pump body and the pump cover plus pad, fastening the connector, if the pump is cracked, you should replace the pump. (3) 20 oil is suitable for 10 degrees -50 degrees temperature work, 3, vibration noise is too large Fault analysis: (1) gear error or two gears axis is not parallel. (2) gear pump inlet pipe diameter is too small. (3) clogged filter, or high speed. The solution: (1) replace the main precision gear to ensure that the two gear axis parallel. (2) replace the larger diameter of the inlet pipe. (3) Clean the oil filter or reduce the speed. The use of hydraulic gear pump can not be smooth, even if the price is high, even the best quality hydraulic gear pump may have a fault occurs, the failure will affect the hydraulic gear pump effect, which is inevitable . Hydraulic gear pump after years of development, the probability of failure has been gradually reduced, but the failure of the situation still exists to find a suitable solution requires more work experience and accumulation.