Here are 4 reasons why hydraulics pros rarely if ever use a hand pump when troubleshooting a hydraulic machine:
A hydraulic system is a sealed, fluid-filled system. And one that is sensitive to ingress of dirt, water and air. In addition to the contaminant ingression risk, there is always a safety … Read more
A millwright recently completed a 5-day basic hydraulics training. He plans to use his recently acquired hydraulics knowledge to check and set the relief valves in the circuit shown below, using a hand pump. Valves 04 and 06 are both relief valves (no external drains are shown). The rear section of the tandem pump 01 provides two pilot pressures: Pp1 … Read more
I recently came across an article describing a failure that occurred on a hydraulic machine during the last northern winter. The extreme cold had caused the water present in the hydraulic oil to freeze on the surface of the installed suction strainer. When the hydraulic system was started the ice-clogged suction strainer imploded and the resulting debris destroyed the hydraulic … Read more