Analysis of Common Faults of Gear Pumps for Compaction Garbage Trucks

1. Reasons for the oil pump not discharging oil or insufficient flow

The pump doesn't rotate.

The oil suction pipe or oil suction filter is clogged

The amount of hydraulic oil is too low

The internal components of the pump are worn or damaged

The seal is damaged.

Exclusion method

The spline of the pump is damaged or the power take-off cannot be engaged

Analyze, inspect and repair, and clear blockages

Add hydraulic oil to the specified height

Replace or repair replacement

2. Reasons for high noise and large pressure fluctuations

The oil suction pipe or oil suction filter is clogged

There is a large amount of air in the oil circuit

The internal components of the pump are worn or damaged

The oil is contaminated or emulsified

Exclusion method

Analyze, inspect and repair, and clear blockages

Exhaust

Replace or repair

Change the hydraulic oil

3. Causes of abnormal fever

There is a large amount of air in the oil circuit

The amount of hydraulic oil is too low

System blockage

Exclusion method

Exhaust

Pressurize the oil to the specified height

Analyze, inspect and repair, and clear blockages