During a recent conversation I had with a member who builds hydraulic power units, this observation was made: “Oil coolers are generally resisted by customers because of initial cost and maintenance, so fitting a bigger reservoir, when possible, is often the preferred solution.”

I recall coming across the very same resistance when I was building hydraulic power units for end-user … Read more

I recently came across an article outlining 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 pump.… Read more

I was asked recently to give a second opinion on the cause of failure of a hydraulic piston pump. The hydraulic pump had failed after only a short period in service and my client had pursued a warranty claim with the manufacturer.

The manufacturer rejected the warranty claim on the basis that the failure had been caused by contamination of … Read more