I'm going to start working on a Craftsman 50145, 3.5T floor jack. The jack was my father's, only (hardly) used at his home.
The issue is that as soon as the pad has any weight on it, it stops lifting. There's no resistance felt in the handle.
- There is zero evidence of external hydraulic fluid leakage.
- Removing the plastic (it's supposed to be rubber, yes?) there is fluid visible. I don't know if it's all the way fill.
- No visible bubbles in the fluid.
I'm going to see if topping up the fluid and bleeding helps. I have the recommended equivalent Coastal Hydraulic Jack Oil (Mobil DTE13M).