One of our members wrote to me regarding the following problem:
“We have a hydraulic system that operates two cylinders. The maintenance staff recently reported that the pump (piston-type) had failed – for reasons unknown at this time. The tank, valves and cylinders were cleaned and a replacement pump installed. The new pump is delivering a maximum pressure of 1,000 … Read more
In my previous articles on hydrostatic transmissions, I described the technique for determining the condition of a hydrostatic transmission using case drain flow, and discussed the role and influence of a flushing valve when doing this.
In response to these articles, some members were still confused about the influence of the charge pump when determining case drain leakage from … Read more
Despite his mother’s horror and protestations, my 18 year old son recently bought a motorcycle. It’s a Japanese, hog style machine. Ben would quite like a H.D. but that’s WAY out of his price range. The bike he got is 13 years old with 15,000 km (9,300 miles) on the dial. So he didn’t pay a lot for it. In … Read more