Converting Hydraulic shop press to electric. For 40 Dollars.

[bobneumann]

I love you diagrams showing how a jack works. When a jack ceases to function what is the normal cause? I had assumed the pump seal but I see the check balls must seat well. If a jack does not have the hex collar is it still likely screwed together?Thanks, Rob

I'm not sure there is a single normal cause. Could be bad seals in the main cylinder or the pump. Could be debris in either check valve or in the bypass valve. I'm not sure about the hex collar.

Hope it helps.

Bob