Recent content by vision976

Yesterday, I JB welded the gear to the valve shaft to eliminate the clearance of the rounded off valve shaft flats to driven gear; bolted it up carefully to center the gear on the shaft. Added jack fluid to compensate for what I'd lost when I inverted the jack to tap the little balls out of...

So I put everything back together paying very close attention to the assembly and seating of the release valve mechanism per Edgar's and Hiball's instructions. And the jack now functions, at least on the bench, it raises and lowers. I can't tell if it leaks down yet. Hiball: There are 12 gear...

Ok, With Edgar's and HiBall's help, I figured out how the release valve mechanism works on my jack. I was buffaloed as to how the valve could possibly work at all, because there there no threads visible to me that could be used to impart a force to seat the ball bearing against the orifice...

At Edgar's suggestion, I flipped the jack over and tapped the jack body with a hammer which caused two additional balls to fall out. The 1/8th inch from the over-pressure valve mechanism and a 1/4 inch from the pump well, it fits under the largest ball in the same well.

Hiball, I have an AllTrade 3 Ton "Load Buster" Floor Jack Model # 891-J-3-MJ which I won in as a prize in a trap shoot in 1995. It has never worked properly, meaning that it would always slowly leak down no matter how much I tightened the valve controlled by the jack handle. In fact, I have...