The hydraulic pump is the hardest working component of a hydraulic system. And as the pump wears in service, internal leakage increases and therefore the percentage of output flow available to do useful work (volumetric efficiency) decreases. If volumetric efficiency falls below a level considered acceptable for the application, the pump will need to be changed-out. In a condition-based maintenance … Read more
A Hydraulic Machine Buyer’s Guide: 5 Things to Know
When buying a piece of hydraulic equipment, there are 5 things about the environment the machine will operate in, that you should always disclose to the equipment supplier or designer–even if they don’t ask. Especially if they don’t ask:
1. Minimum and maximum ambient temperature. This information is necessary to determine the correct hydraulic fluid type, viscosity grade and … Read more
The Best Time For a Hydraulics Pro to Ask For a Raise
Jason from California (not his real name) wrote me this a couple of days ago:
“Brendan, I wanted to share with you a troubleshooting story and how your techniques helped save my service department $15,000.
We recently did a complete tear down and rebuild of a CAT 988H wheel loader. After many months the project was completed and the machine … Read more