Hydraulic Pump Not Working?


For many businesses, the hydraulic pump is an essential piece of equipment. When it breaks down, production grinds to a halt until the problem is solved.

Even normal use over time creates wear and tear that takes a toll on the pump. This is where an inspection and maintenance schedule, paired with good operational practices, can help you prevent or limit major problems.

Here’s an overview of some common issues that you may encounter as well as what to do about them. It looks at hydraulic pumps as a general class. Read this guide for a more detailed explanation of what to do with a hydraulic pump not working.

Excessive Fluid Temperature

Your hydraulic system is designed to operate within a range of temperatures. If the fluid gets above that range, a wide variety of problems can occur. You need to spot these problems early or face major repairs to damaged seals and other components.

What causes this rise in temperature? There a range of possible causes here including an underperforming heat exchanger and blockages around the core. Examine, test, and replace the cooling circuit as needed. If that doesn’t seem to be the problem, you may also want to check for poorly adjusted valves or leaking seals.

A Noisy or Overheating Pump

Do you notice that your hydraulic pump is running noticeably louder or hotter? There may be the same root cause for both of these issues: cavitation. During cavitation, your hydraulic system is demanding more fluid than it is being supplied. This is a serious problem. Cavitation can damage metal, contaminating the hydraulic fluid and changing its performance. It also greatly accelerates the wear-out times of vital system components including seals.

One straightforward solution is to check the strainer. If it is blocked or too small, this can cause excessive wear and tear on your pump. Clean the strainer out or replace it with an appropriately sized unit.

Overall Lagging Operation

Your hydraulic system may appear to be working fine, but an overall poor machine performance can be a sign of hidden problems. A slow speed is a telltale warning of loss of flow. Start by inspecting for broken or loose hoses. See if you can find any pools of fluid and track them to the source. Internal leakages are harder to spot. These tend to generate heat. If you have an infrared thermometer on hand, this may help you find the problem area.

Hydraulic Pump Not Working? Call Us Today

If you’re having trouble with your hydraulic pump or are considering upgrading your model, contact us at White House Products, Ltd. today. We’ll be happy to answer any questions you may have and discuss your options with you.