Hello, This is my fist post here so please bare with me if this is the wrong area for this post. I just got an older hyster from my work. I am unsure of the model number as the data plat is faded in that area. The S25A was a stab in the dark. Here is the serial number

B0010109450

the "B" could be a 0 not sure.

Any information would be helpful. But I would like to know the model number and year or a ball park year.

The only problem I have with it other then a dead battery is the main hydraulic is leaking out of a elbow near the top of the ram. When going up it dose not leak but once you stop up in the air fluid runs out of that elbow and the mast slowly descends. There is also a hose at at the bottom of the ram and it looks to be 1/4" or 3/8" male pipe thread. I am thinking I am missing a hard line that goes from the hose at the bottom to the 90deg elbow at the top of the ram. does this sound right? I had thought that there might have been a plug in that but that was before i notice the hose at the bottom of the ram.

I can take picture if needed.
Thanks
Michael