Floor jack not holding up...

[MaximaGuy]

My floor jack (torin/husky) I bought in 2005 is not holding up. I noticed a leak at the piston and think it is a worn seal. Pulled the piston out and then looked at the seal, it looks OK.

I am not sure why my jack is not holding the weight....

Any suggestions will help.

 

[tom slick]

did you check the seal on the valve(s)?

 

[1 FMF]

bad seal- hard, torn, or chafed?

bad finish or oxidation on piston/ram?

bent ram or not true?

bad outside case holding the seal, case is not true?

 

[Eddie]

Twisted frame causing piston rod side stress. Happened to me when I was jacking my car on a slanted surface.

 

[alreadygone]

Usually, if they'll jack there's nothing wrong with pump. Leakdown is usually caused by damage or trash where let-down valve contacts its seat.

Try opening valve and pump vigorously for several dozen strokes. (Maybe a few drops of TransX,,,what you got to loose?)

Bob