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Also, check the pressure release and fill port. My dad had a really old (circa 1930s or maybe 1940s..big thing, about 4 feet long) floor jack whose pressure release(located on the drag handle) wouldn't fully engage, and one time, after replacing the hydraulic fluid the fill port was a bit loose
I agree with cerberustugowar
that it is leaking past a return valve where the tiniest bit of dirt will disable the unit.
is it an air over hydraulic? or just a regular floor jack?
maybe it's leaking past the return valve or maybe there is some sort of damage to the barrel?
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Posted:Feb 2, 2017
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