Question about Plumbing
September 25, 2008
Dear Fellow Technicians, I hope you can help me;
I have a Sears 4 Ton Hydraulic Automotive Floor Jack Model #214.12310 that I have owned for approx. 20 years now. It has been a real work horse I use it almost every week when I work on my vehicles.
The problem started around a week ago when I noticed that the jack would not lift past approx. 6" and then it would just oscillate up and down in short bursts when you would pump the handle or the foot pad. I checked the oil level and added a little bit, and then following the 3 page instruction manual that came with the jack I pumped the handle with the release valve open to bleed out any air in the power unit. However, this did not work, and the jack failed to lift as before.
I contacted Sears and learned that they no longer sell replacement parts for this jack nor could they direct me to a technical service manual that would instruct me on how to diagnose what the problem with the jack could be.
I have gone on the internet and I have tried to research this information but have only found repair shops that supposedly will service Hydraulic Jacks, but have not been able to find any book or literture on repairing them yourself.
If you have any idea what could be wrong with this Hydraulic Jack or if you know of a website that may have the information that I am searching for please respond.
Any help is deeply appreciated.
Eduardo A. Mosquera - Lennoxspaceneedle
I had the same problem with a 3 ton sears jack and here is what I did. I pulled the jack all the way to the top, the piston should be fullley extended. Then I added oil to the jack. You will have to work the piston back and forth, (.5 in or so) and continune to add oil while doing this until no more air comes out. The method fix my 3 ton jack. Hope this helps
Posted on Jun 08, 2009
I have a Sears 1 1/2 ton floor jack. I was able to buy a repair kit from Astro Pneumatic Tool Company 372 OLD U.S. Hwy 52 South Mount Airy N,C 27030-8093
Posted on May 21, 2009
Oh ok i see whats wrong if u filled it with oil and realesed all the air out should be good if no go there is only one more problem that it can be
the 2 seals inside the jack one is a decent sized o ring
and the other is a rubber stopper to build up the pressure
to fix this problem the actual pump must be pulled out of the jack i have done this before but it is sorta hard if u need further help i can send u a diagram on how to do it thanks from chris
Posted on Sep 27, 2008
I got a Sears 4 ton floor jack that someone had thrown out because it didn't lift (it was almost unused, but out of warranty). I noticed a phone number for the distributor, the Torin Jack Company, Ontario, CA (888-448-6746) on the underside of the jack. They told me to bleed the jack (open the valve - two turns CCW of the handle, and pump the handle 20 times). This fixed it; the jack works very well, at least for now. Also, the screw with the "DO NOT ADJUST" cap is the pressure relief valve. If you have messed with it, as I had, you want to adjust it "almost tight". If it's loose, the jack won't lift or will not stay up. Adjust it just tight enough so that the jack will lift and hold, but not any tighter. Hope this helps.
Posted on May 11, 2011
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