One of our members wrote me with the following question:

“We are trying to give one of our customers a short definition of what constitutes a hydraulic oil leak. Is there a standard or a general definition of what constitutes a hydraulic leak?”

It’s not rocket science. In the case of a hydraulic system, any hydraulic fluid that appears on … Read more

A highly qualified, intensive care doctor is struck down with appendicitis. So he undergoes keyhole surgery at the hospital where he works. He is now a patient in his own hospital. In the recovery room, post surgery, he is awake but starts to feel light headed. A nurse takes his blood pressure and it’s way down. This triggers an emergency … Read more

While absolutely essential on a piston-type hydraulic motor, an external case drain line is usually optional on gear motor designs–external, internal and gerotor/geroller. These types of motors don’t have a large-volume case or sump like piston motors do. But they do have internal leakage which by design, usually accumulates in a small cavity just behind the shaft seal.

By installing … Read more