I know even less about my Harbor Freight Motorcycle Lift than I do about my P200. I bought it used last year and I've had intermittent trouble with it not going up or not coming down.
Most recently, it had been up for several weeks and resting on the steel bar so there was no pressure on the cylinder. When I tried to pump it up enough to remove the steel bar, I found that the linkage connected to the release pedal had lost a screw and was no longer connected. Also, I had to add about 4 oz of fluid to the cylinder. I rebuilt the links and finally got it to go up and come down although when it came down, I couldn't stop it until it reached bottom.
Since then I have been able to pump it up and by manually lifting the release pedal higher than it usually goes, I can hold it in place long enough to insert the steel rod... BUT ONLY IF THE LIFT IS EMPTY. When I put the P200 back on, the lift won't rise.
I'm guessing that the hydraulic cylinder needs to be rebuilt. Does that sound right? How do I do that? Is that something that a local hydraulic repair service would do for me or do I have to go back through Harbor Freight and/or Pittsburgh Motorcycle.
If anyone has had similar experiences with this lift, I could use your advice.