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Whats Wrong with my Floor Jack?


Old 10-25-2009, 08:17 PM
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Join Date: Apr 2003
Location: Central NJ
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Whats Wrong with my Floor Jack?

The jack only goes up so far under a load, then i can pump all I want, it won't go any higher. Its barley enought to get a wheel off the ground. It does not drift downward once the load is jacked up.

I tried to open the fill screw port to fill it with oil, but when I turned the screw a bit, oil started to come out, so I guess it is full.

Any ideas on whats wrong? or if this is fixable.

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Old 10-25-2009, 08:29 PM
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Join Date: Nov 2004
Location: Ocala/Orlando, FL
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Not sure, but I've got a few jacks back in Ocala with this same problem, so I'm curious what the issue is and how to fix it.
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Old 10-25-2009, 08:37 PM
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Join Date: Jan 2007
Location: Vernon, NY
Posts: 6,206
We've had an MVP floor jack for about 18 years, and finally this past week it has been starting to do this. I better start looking for new floor jacks.

I think it is the hydraulic cylinder starting to go.
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Old 10-25-2009, 09:02 PM
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Look it up onilne by name and model number, and get the instruction book. It prabably just low of oil.
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Old 10-25-2009, 09:04 PM
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Join Date: Aug 2002
Posts: 476
Could be low on fluid, could just need a rebuild. If there's a good hydraulic place in your town it might be cheaper to rebuild it than to replace it with a new one. I had one rebuilt about 15 years ago and it's still working fine.
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