Hydraulic Jack Slow to Rise

[email protected] wrote:
> Hi all,
>
> I have a 2 ton hydraulic jack that worked perfectly for over 10
> years. But this Spring when I tried to use it, I found that the first
> 2/3 of the pump travel doesn't do anything, only the last 1/3 is doing
> any actual pumping. The first 2/3 of the travel offers no resistance,
> while the last 1/3 is normal.
>
> Does it just need an oil refill or something more serious?
>
> Thank you

Sounds like the O-rings are shot.
See if you can get a rebuild kit.

[email protected] wrote:
> Hi all,
>
> I have a 2 ton hydraulic jack that worked perfectly for over 10
> years. But this Spring when I tried to use it, I found that the first
> 2/3 of the pump travel doesn't do anything, only the last 1/3 is doing
> any actual pumping. The first 2/3 of the travel offers no resistance,
> while the last 1/3 is normal.
>
> Does it just need an oil refill or something more serious?
>
> Thank you

Viagra...



Actually it sounds like either the pump orings or a sticky valve. If
it's a better brand you should be able to find rebuild parts.

--
Steve W.

[email protected] wrote:
> Hi all,
>
> I have a 2 ton hydraulic jack that worked perfectly for over 10
> years. But this Spring when I tried to use it, I found that the first
> 2/3 of the pump travel doesn't do anything, only the last 1/3 is doing
> any actual pumping. The first 2/3 of the travel offers no resistance,
> while the last 1/3 is normal.
>
> Does it just need an oil refill or something more serious?
>
> Thank you

Check your fluid level...

[email protected] wrote:
> Hi all,
>
> I have a 2 ton hydraulic jack that worked perfectly for over 10
> years. But this Spring when I tried to use it, I found that the first
> 2/3 of the pump travel doesn't do anything, only the last 1/3 is doing
> any actual pumping. The first 2/3 of the travel offers no resistance,
> while the last 1/3 is normal.
>
> Does it just need an oil refill or something more serious?
>
> Thank you

It *sounds* like its low on oil, but it could be an internal seal
leaking too. I get a little nervous whenever a hydraulic jack shows any
odd behavior, because if an internal seal blows it can drop the car like
a rock. IF a fluid fill fixes it, use it carefully until you determine
if there's a leak. And of course always use jackstands with any jack,
but particularly a hydraulic.

I own three forty ton hydraulic bottle jacks.They work just fine, but
they are slowwwwwww.
cuhulin