General Category > General Discussion
Rebuilding/servicing a hydraulic jack?
Tom:
Anyone do it successfully? I've seen some vids and curious if it worked out for you? I have one floor jack that I'd like to service. Any advice? While I'm at it, one of motorcycle lifts slowly loses lift, fortunately there is a lock and doesn't dump the bike.
Travlr:
Sorry, but I removed my cylinder and sent it off to be rebuilt. Seems like it was $100-$150 to do the job.
Mike
pehayes:
I have a moto lift table (similar but not from HF) which has a foot hydraulic pump combined with and air pressure system which drives the same pump. I can thus use an air hose or my foot to lift a moto. The hydraulic ram pump is the same as a traditional 'bottle jack' but it lays down sideways. Charlie Mullendore has the same table. Mine was always leaking out the control valve area. I disassembled and fabricated a new control valve. I recall adding a second o-ring groove. Works perfectly and hasn't lost a drop in years now. Fairly simple and crude construction throughout. I did NOT disassemble the entire ram and reservoir.
Patrick Hayes
Fremont CA
Tom:
My motorcycle lift is leaking on the piston, I'm guessing that it needs a seal. The floor jack that I need to fix has a slight leak too, looks like it might be the same thing. Thanks.
OldMojo:
I have an old Sears floor jack that was no longer pumping up. Found the manual online - long since discontinued (no surprise), but regardless, none of the hydraulic parts were listed - just the whole hydraulic unit. No kit numbers, no seal numbers, nada.
Figured I'd take a shot in the dark and search YouTube for "Sears floor jack repair". Wouldn't you know it, there's a whole genre of jack repair and restoration videos. Wasn't long before I found a video of a guy fixing the same problem with the same jack, with the trade numbers for the seals helpfully posted.
Sometimes the internet is actually good for something! :grin:
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