I Bought a Hydraulic Pump from You. Do I Need to do Anything Before Installing it?

This is a question that is best asked before ordering a new pump because there are a variety of factors that can cause a hydraulic pump or motor to fail. Among them are what I call the 4 main “pump killers:”

1. Mechanical Failure to the Input Shaft: This is generally caused by an extreme load on the pump due to a problem with the pressure relief components designed to prevent overloading, or slack between the shaft and coupling causing shaft fretting.

2. Cavitation: Simply put, the pump is starved of oil, causing a myriad of problems.

3. Over Pressurization: Again, when pressure relief components fail or are adjusted higher than what the pump is designed to handle, gradual or catastrophic failure is imminent.

4. System Contamination: Your hydraulic system has dozens of moving parts, and even more than hydraulic oil flows through. Over time, any of these components can wear away or corrode, leaving small particles of rubber, plastic, rust, dirt and grime, and metal shavings. If this “trash” is not flushed out, it WILL cause damage to your system, including your new pump.

You really need to determine or have a mechanic determine the exact cause of your pump failure and check the pressure relief valves, pump coupler(s), etc… to make sure that any external issue that caused your old pump to fail is addressed, so it doesn’t cause the same or worse damage to your new pump