Changzhou Rohn Hydraulic Sci-Tech Co., Ltd.
Changzhou Rohn Hydraulic Sci-Tech Co., Ltd.

What are the common faults of gear pumps and what should we do?

Frequent failures in gear pumps are mainly due to low flow, no oil suction, insufficient pressure, loud noise, oil leakage, overheating, abnormal operation of the oil pump or seizure, etc. Next, the editor will introduce to you the causes and solutions of the failure.

Taking the gear pump not absorbing oil or having a small flow rate as an example, the reasons are:

1. The oil suction position is too high or the oil level is insufficient.

2. The radial clearance between the top circle of the gear pump and the hole in the pump body is too large, and the clearance between the side of the gear and the end faces of the front and rear cover plates is too large.

3. The gear pump is not tightly sealed.

4. The oil filter is clogged.

5. The oil temperature is too high.

Our solution to this:

1. Add oil in the fuel tank and lower the oil suction position.

2. Replace the pump body.

3. Replace the sealing components and tighten the connections.

4. Clean or replace the filter element of the oil filter.

5. Add a cooler or use air cooling in the fuel tank.

Let’s talk about the problem of gear pump failure first. If you want to know more, remember to pay attention to our official website.

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