Loud noises

Hearing a lot of noise from any part of your machinery is less than ideal. However, with hydraulic pumps, this is a loud and clear sign that something is off. 

Hydraulic pumps are full of fluids which course through the system at high speeds and pressures. That is enough to generate a lot of noise; however, hydraulic pumps are designed to muffle such sounds.

Through the course of operation, parts of the machinery wear down and do not perform their functions as well. When you hear loud noises coming from the pump, you can be sure that some part of your hydraulic pump needs repair or replacement.

Inside leaks

As soon as you see liquids anywhere inside the pump, other than in the tubes where they belong, you can be sure that there is something wrong with the pump. It can be as simple as a seal or valve being loose, to more serious cases when there is a break in the line. 

This can cause a drop in pressure and malfunction of the entire system. This problem is a bit trickier to spot since the leak occurs on the inside of the pump. However, if you carefully examine your pump before taking a longer trip, you can spot the problem before it gets worse.

Outside leaks

If you spot liquid on the outside of the pump, the problem of leaking has progressed, and you must take action immediately since the leak is a sure sign that the pump is on its last legs. 

Whether it can be repaired or needs to be replaced is perhaps best assessed by an expert, but the important thing is to act as soon as you identify the problem. Both inside and outside leaks are critical since they can start a chain reaction.

Leaking reduces the pressure, which increases the temperature of the system. This affects the viscosity of the oil, further reducing the pressure in the system.

High working temperatures

For a hydraulic pump to function properly, it is important to keep a certain level of fluid viscosity. Since the viscosity of a fluid depends on the temperature and pressure, both of these things need to be within limits recommended by the pump manufacturer. If either of these two parameters is off, the pump will experience unnecessary strain which may lead to premature failure. 

Temperatures over 180°F or 82°C have a detrimental effect on the performance and should be avoided. These temperatures are usually reached if the system is not cooled properly. Make sure that there is no obstruction in the air around the reservoir of the hydraulic system and check the heat exchanger while you are at it.

Looking for a Hydraulic Pump Repair Expert?

Boats and other machinery are complex systems which require all their parts to function properly. The best way to achieve that is regular inspection and maintenance. However, when things do break down, have a good mechanic on your speed dial. PCE is a San Diego ship repair company with a decades-long tradition and US Navy contracts as an assurance of quality.