That happened on a few Linde lifts back in early 2000 I had several that did that the relief valves were failing causing metal to get into whole hyd system we had to clean all hyd system and we actually had to replace the control valves because the Linde was such close tolerance I hope you don't have a relief valve issue also
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.