The gear pump is generally used as fuel capacity is according to the system the required oil quantity to select, emissions will cause waste, emissions is too small can not meet the use demand cause accidents, such as for lubrication of gear pump. General gear oil pump capacity should be greater than the required oil quantity is ten percent to twenty. If the gear oil pump capacity is too small will cause the system pressure is slow, not even up to the required pressure, and the capacity is too large, will cause the system to boost too fast, the pressure is too high and difficult to control, to the relief, relief measures such as increasing the operation cost, has great power consumption.

General now gear oil pump inspection need from the following several aspects to consider:

1 medium viscosity, the conveying pump.Medium temperature is

3, the reasonable according to the pipeline resistance and line loss calculation of pipe length, diameter, elbow reasonable quantity of the normal work of the gear oil pump.

4, dielectric properties.