How to adjust the output pressure of the hydraulic pump?

Hydraulic pumps rely on the use of a moving part to apply pressure and push hydraulic fluid (usually hydraulic oil) from a reservoir into the hydraulic system to perform various tasks. on excavator. After long-term use, the hydraulic pump may malfunction and sometimes may also be damaged related to the oil output pressure. So how to adjust the output pressure of the hydraulic pump, learn with Truong Linh Parts through the article below.

1. Adjust hydraulic pump output pressure

It may be necessary to change the hydraulic pump pressure, which fortunately is possible. Pressure imbalance can occur due to flow differences within the pump. Since such a pump has many actuators, they oscillate.

To compensate for pressure changes, we may need to adjust the output pressure. This can be done in a variety of ways, depending on the machine. However, this is the complicated part that confuses many users.

So how to adjust the output pressure of the hydraulic pump? So, here we have described the procedures for you to adjust the pressure easily at home using simple tools.

2. How to adjust the output pressure of the hydraulic pump?

The problem with hydraulic pumps is that we cannot adjust the pressure but must maintain the flow so that the pressure is always stable. This can be done in different ways.

Pumps with pressure control regulators can be easily repaired. Simply change the pressure on the shield when the pressure seems too high. For other pumps with open systems, you will receive a PSV showing the pressure that needs to be adjusted.
To adjust the pressure, we need to change the flow rate because the pump only creates speed. This will ensure that the pressure does not increase and remains balanced.
In some cases, we cannot simply adjust the pressure. We can add a pressure relief valve to the bypass flow in the pump to dump some oil whenever the pressure gets too high. Some pumps have valves that regulate the flow rate. Therefore, we can adjust the valve opening to change the pressure level.
We can easily add any type of relief valve to the pump to maintain pressure. Although the valve does not regulate the pressure itself, we can add these to reduce the pressure whenever it increases.
Sometimes, a valve also includes a compensation valve to regulate pressure. The compensator will remain at the required pressure setting. As pressure increases, this adjustment limits system pressure.
We can also correct the flow displacement inside the pump to overcome pressure imbalance. The crank length is adjusted to correct the problem.

See more: How to adjust the output pressure of the hydraulic pump?

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