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My jack has recently started acting up. There are two "controls": The pump handle for raising, and the valve for lowering. I open the valve by using the handle as a tool. (I guess this is how all the cheaper ones work. I believe the more expensive jacks have a lever on the handle for lowering.)
The problem is that the valve now needs to be really tightened when I want to lift the car. To the point that I now have to operate the valve with a spanner, as I can't apply enough force with the handle. Is it a case of busted O-rings or low oil level?
I removed the cover today to take a look, but I didn't get any wiser.


Comments appreciated!
Erling.
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My 240 Page
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