Question about Plumbing

4 Answers

Sears 4 Ton Hydraulic Automotive Floor Jack-Will Not Lift ?

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.

Thank You,
Eduardo A. Mosquera - Lennoxspaceneedle

Posted by on

  • 3 more comments 
  • EdsHonda1987 Sep 27, 2008

    Dear Chris07551;

    If you could send me via E-Mail the diagram of how to do this it would be very helpfull.... I figured it was some type of seal or O-Ring that the pump uses to build up hydraulic pressure that maybe is leaking.... But without a parts disassembly diagram of the pump it is just guessing, and not fixing......

    You would think that Sears since they do not sell the replacement parts anymore would at least provide a diagram of the pump to make it easier to fix, but they unfortunately have adopted the "throw out and buy a new one" attitude that is so common with US company's today. I read online that Sears probably did not make the jack they just put their name on it, and I could not find anywhere on the tool the name of an independent manufacturer, which makes it that much harder to identify the type of unit that it is.

    Thank you for your effort and time in helping me with this problem.

    Eduardo Mosquera

  • damtramp Dec 12, 2008

    some floor jack same problem

  • Anonymous Jan 25, 2009

    Hi Chris I have a 1.5 ton Sears jack and the seal inside has gone bad (N80XXXX) Do you know where I can find this seal? thanks Ron

  • Anonymous Apr 22, 2009

    I have a sears 5 ton hydrolic jack that won't lift. Model 3 is 214-50114. Do you have any ideas where I can get new seals?

  • Anonymous May 04, 2009

    same jack issues


4 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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

  • Horsetooth Dec 09, 2010

    I did solution 2 and it worked perfectly! Thanks jkm4598002


  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Master
  • 726 Answers

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

  • Scott Ocampo Jun 14, 2013

    can you send the diagram, I am having this problem. Thanks


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

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

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I need to clean the rain water tank from in side how i dont knew how i need some help to show me how in video

I take it you mean the radiator tank ?. I think the best thing to do is take it to a radiator repair shop where it can be reversed flushed cleaned and flow tested . Some times the core must be replaced.

Jun 29, 2014 | Plumbing

1 Answer

How to wire a septic pump?

You are asking your question in the problems with websites forum.
You might want to try "Home & Garden." To the best of my knowledge, you point the mouse at the "fixya" logo above left and see a drop-down listing of categories, move the mouse over this menu and click on the appropriate category.

I really shouldn't have advised the user whose title had to do with YouTube and the question had to do with automotive, and I advised he delete and reinstall his software..... I need to go back and revisit that one! :)

Jun 24, 2014 | Plumbing

1 Answer

Our bath taps which are a mixer with shower attachment stay really hot if you put the hot on first or really cold if you put the cold on first any idea how to adjust so we can have warm water when turning...

you make no sense. From the picture the water "mixer" is the center lever or is it a diverter valve for the shower and water nozzle below???
The knobs are for hot and cold water??

Jun 08, 2014 | Plumbing

1 Answer

Open water tank

Couple things you can try to help free it up. A nice strike with a hammer can cause vibrations to help break it loose or you could try applying heat, I usually use a mep torch. The heat lets metal expand slightly which helps to break up any buildup. Best trick is to not give it constant pressure, rather sharp taps. It it feels like your about to break it, you're probably right.

May 10, 2013 | Plumbing

Not finding what you are looking for?
Plumbing Logo

Related Topics:

9,383 people viewed this question

Ask a Question

Usually answered in minutes!

Top Plumbing Experts

Brad Brown

Level 3 Expert

13765 Answers

Tom Chichester

Level 3 Expert

26189 Answers

Gil Shultz

Level 3 Expert

3320 Answers

Are you a Plumbing Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides