Questions & Answers for: Blackhawk how jack lift

there are two holes on my jack. one near the bottow of the cylinder and the other about a fourth the way down. which one is the drain hole and which one is the filer hole. I think this is a 1947 model

how does a floor jack work Place jack under what you want lifted and close valve and put rod in jacker and jack up till your height is good,to let down turn valve counterclock wise.

...jack and is leaking past internally and loosing lift capacity. How do I overhaul/ repair it? Sounds like a bad seal on that plunger that pumps up and down. That plunger should unscrew and then it's ...