Recent Topics
My Navara Lube specs
by Shannow
Today at 04:48 PM
OPEC will not cut production
by Drew99GT
Today at 04:47 PM
Why is Diesel Fuel so Much More Expensive?
by Nick1994
Today at 04:43 PM
Advance Auto 25% off promo
by LotI
Today at 04:33 PM
Hakka R2s or Altimax Artics
by pbm
Today at 03:06 PM
pep boys black friday 2 page ad
by hardcore302
Today at 03:03 PM
Toro 721 QZR Vibration?
by BruceinWisconsin
Today at 02:38 PM
new adblocker for Firefox beats Adblock
by Drew99GT
Today at 02:22 PM
Ace hardware 50% off $30
by eljefino
Today at 01:40 PM
Any (black Friday) sales going on for Rotella T6?
by carman594
Today at 12:50 PM
What is wrong with me.
by CT8
Today at 12:33 PM
Battery test?
by Rolla07
Today at 11:28 AM
Newest Members
Visco, papajetta, MalfunctionProne, royston59, TriboOilGuy
52005 Registered Users
Who's Online
98 registered (2010_FX4, 54steve, 01rangerxl, 632regal, 2KBMW, 01_celica_gt, 6 invisible), 1464 Guests and 148 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52005 Members
66 Forums
222643 Topics
3524625 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#1046936 - 12/15/07 01:28 PM Hydraulic jack won't pump up
Kestas Offline



Registered: 06/04/02
Posts: 10870
Loc: The Motor City
My hydraulic jack won't pump up the lift mechanism. The lever mechanism works okay and the unit is full of hydraulic fluid, but it won't pump up. This is a Prolift 3300 lb jack with wheels and the hydraulic pump is mounted horizontally.

I believe it may have air in it that needs to be bled. What is the procedure for bleeding air out of the unit?

This has happened in the past and I've always managed to get it working... but not this time. The unit is over 20 years old, but I don't want to toss it if it's still repairable.

Top
#1046937 - 12/15/07 01:30 PM Re: Hydraulic jack won't pump up [Re: Kestas]
XS650 Offline



Registered: 12/21/03
Posts: 12385
Loc: Northern CA
Sounds like a dead seal.
_________________________
Whenever you find yourself on the side of the majority, it is time to pause and reflect.

--Mark Twain

Top
#1047038 - 12/15/07 05:23 PM Re: Hydraulic jack won't pump up [Re: XS650]
88Dakota Offline


Registered: 02/02/07
Posts: 55
Loc: Massachusetts
From what I remember of the bleeding procedure, you're supposed to loosen the release screw and pump it for a while.

Top
#1047108 - 12/15/07 07:16 PM Re: Hydraulic jack won't pump up [Re: 88Dakota]
SHOZ Offline


Registered: 06/28/03
Posts: 1862
Loc: Illinois
Yes it needs bled. I have that problem as mine gets hauled around.

Top
#1047225 - 12/15/07 11:10 PM Re: Hydraulic jack won't pump up [Re: SHOZ]
alreadygone Offline


Registered: 01/04/06
Posts: 3161
Loc: North Arkansas
88Dakota's reccomendation is correct. In it's normal position, open valve and pump repeatedly. ten when valve is closed it should work properly.

Bob
_________________________
To which version of reality would you like to convert me?

Bob

Top
#1047230 - 12/15/07 11:23 PM Re: Hydraulic jack won't pump up [Re: Kestas]
Merkava_4 Offline


Registered: 01/30/07
Posts: 9580
Loc: Clovis, CA
A lot of these floor jacks have no rebuild kits available; they're pretty much a throw-away when the seals give out.

I've go an old Taiwanese made 3.5 ton jack that needed some steel balls for the races in the swivel casters. I was so dang stubborn, that I went and found a place that stocked the steel balls I wanted; now it rolls real nice.

Top