help me ID this jack

[turbo6justin]

I have this older, I believe Craftsman jack and it started leaving a pretty good blood trail over the last few weeks. It should be pretty straightforward to replace the seals per the sticky if I can figure out what the heck it actually is. I am reasonably sure it is a Craftsman. It is at least 14 years old probably closer to 20 so mid/late 90's. I am gussing it was rated as 3 tons.

The part number has illuded me to this point. The main sticker on the top is obviousely gone. I have looked and am unable to find a stamped part number anywhere else. The shaft on the ram measures 1.340" in diameter. I have not pulled the ram to see if there is a part number on that somewhere as I am currently using this just about every day. Any ideas so I can start the search for a rebuild kit?



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[RECox286]

Hey, Turbo.

The pictures of your floorjack match mine in every aspect, so I'm

guessing that they came from the same factory, on the same boat

and were retailed in the same store. Enough speculation...

Your description fits mine; about 15 y.o. no identifing data plate,

decal or stampings. But I do have the C'man manual that came

with the jack (I'm a packrat). It is a Model 875.501152 3 ton

from China. Of course there is no rebuild kit, as there was never

one to begin with. The parts list only shows that, at one time,

there was the entire "power unit assembly" available as the only

hydraulic part stocked. The illustration gives no hint as to what

parts are contained within the assembly. If you decide to remove

the power unit for rebuilding, be very careful to not lose the two

different 'ball bearings' that are in the release valve cavity. And

if you could, I would appreciate your getting their diameters b/c

when I took mine apart they went "somewhere over the rainbow"

probably to never see the light of day again. I will refer to to PM

HIBALL, here on GJ as the resident hydraulics guru. He may

be able to supply you with what soft parts you need. IIRC, I found

that the O'rings I needed were metric, and a small metric selection

from Harbor Freight did the trick. I found a small ball bearing in my

20 year box, and it kind of works, but not the way it should.

If you could PM me back with any information you get, I would

sure appreciate the effort.

Good hunting

Uncle Bob