Sears Floor Jack

[wingnutal]

I have an old Sears floor jack 328.12002. I made a mistake and loaned it out.
After close to a year I finally went and got it yesterday.
My problem is the jack handle is froze and won't turn. I checked the piston and all other functions work fine. I have used Kroil, the best penetrating oil, on it and still won't break loose.
I did remove the locking bolt. It should just pull out shouldn't it. It's not screwed in is it?

 

[Hiball]

I have an old Sears floor jack 328.12002. I made a mistake and loaned it out.
After close to a year I finally went and got it yesterday.
My problem is the jack handle is froze and won't turn. I checked the piston and all other functions work fine. I have used Kroil, the best penetrating oil, on it and still won't break loose.
I did remove the locking bolt. It should just pull out shouldn't it. It's not screwed in is it?

Below the gears, there is a big hex that threads into the block, removing that portion will allow you to remove the entire assembly.

Maybe a picture of your release assembly?

 

[wingnutal]

The handle won't turn. I can't understand why good penetrating oil won't free this up! I tried turning it with a pipe wrench. I hate to hammer the H on it. Afraid I might break the casting. Any ideas!

 

[Hiball]

I'm following you now.. Yes the handle is froze, not the gears on the unit. It's just gonna take some repeated soaking, maybe some light heat??? Once you get it out, hit it with a wire wheel to clean off any rust and then literally lube the socket with some bearing grease or similar.

 

[zkling]

I would try a good soaking in penetrating oil like PB blaster or Kroil. Followed by some lite taps by a hammer on the handle portion, not the casting. Then another soaking. The taps would help to distribute the oil and break down the rust bond.

Then I might go after it by softly, yet firmly securing the green casting and then putting chain wrench or the like on the while part, trying turn it to break it free. As Hiball said, clean up the parts real well with a wire wheel before re assembling.

 

[ex-x-fire]

Get 2 floor flanges that slide over the handle tightly(ream if you have to), the bottom one will push on the cast part. The top one will need to be held in place by a vise, get 4 long threaded bolts & coupler nuts, use these as jacking screws to press off the handle.
I did a trick like this when I was removing a transfer case that was seized, the studs were seized in the holes they passed through. I used nuts & washers to force them through, pressing themselves out, they can make a lot of force.

 

[graffix000]

Could have the borrower buy you a new jack as they messed up this one. I would not be too pleased.

 

[garthg]

Could have the borrower buy you a new jack as they messed up this one. I would not be too pleased.

Seems like it wasn't the borrower's use that caused the handle to freeze. It was the lack of use, unless it was left outside in the elements.