Jack does not gradually go down

olivher · 12-17-01, 04:44

I'm not sure if this is the right forum for this, but here it goes anyways. I have a 3 ton Sears jack that jacks up just fine. The only problem I'm having is when I have to gradually lower it, it just drops the whole jack. When you try to unloosen (turn counter-clockwise) the handle bar, it's like it's stuck or really tight. And if you untighten too far, the jack will just lower itself instantly. Very rarely, I'll get a good spot and I'll be able to gradually lower it.

I don't know if there's any hope for this jack. If there is, please let me know. If not, then Ill just wait for a sale at Sears for their Craftsman Professional series 3 ton jacks.

FLONI · 12-17-01, 04:51

have a lifetime warranty on almost anything they sell.....or is that just craftsman stuff

olivher · 12-17-01, 04:54

Quote:

Originally posted by FLONI
have a lifetime warranty on almost anything they sell.....or is that just craftsman stuff:confused:

The only lifetime warranty is on Craftsman hand tools.

JohnN · 12-17-01, 04:57

Don't even *THINK* of fooling with a hokey jack. Get yourself a new one. The last thing you need is for that thing to backfire on you at the wrong time.

FLONI · 12-17-01, 04:59

no answers but obviously its not catching the grroves right....just be careful that sound awfully dangerous....especially if it just comes down instantly...........

olivher · 12-17-01, 05:15

Yeah, I do plan on buying a new jack. I'm just waiting for a sale on the Craftsman Professional jack. It's the black and yellow one. Thanks for your input guys!

FLONI · 12-17-01, 05:26

Craftsman 3 ton Hydraulic Jack
With this heavy-duty hydraulic floor jack, an SUV can be raised to a maximum height of 21 in. For extra safety and convenience there are big flanges on side plates.

Jack has a reinforced heavy-duty steel frame and lift arm for durability. Rear wheels allow for easy positioning under lift load. Safety valve setting range is 4800-6900 lbs. This jack meets ANSI/ASME safety guidelines to assure safe and dependable operation.

joed1228 · 02-07-02, 11:07

There is prob something wrong with the vavle that releases the oil inside the clyinder. It is not sealing right and it is either closed (when your jacking the car up) but when you try to open it a little to less some of the fluid out to lower the jack it is opening all the way.

Your going to need to return it, unless you want something really heavy hitting the ground really fast

Nothing worse than seeing a car bottom out as it slams to the ground...............

cvcaelen · 02-08-02, 03:06

There is no magic in a jack.
I have rejuvenited more than one.
The most propable cause for your problem is an O-ring that is worn-out.
To fix your jack take it to a mechanic,he will order a set of replaceble parts ,he will replace all those parts,new hydroulic oil,and jour jack will be as new.

Guess My Name · 02-09-02, 07:42

Good tip CV!

From the sound of it the holding valve is the culprit. Try taking it apart and checking it out. If you do replace the fluid as well as it is probably dirty. USe a hydraulic oil ISO 32 or 46. They sell it as jack oil.