John,
Thanks for replying. I have heard the term velocity fuse before. Would this be the mechanical fitting that screws in line to the bottom of one of the lift cylinders? Is it also called a (safety down valve)? I attached a couple photos of the valves I visually inspected. I followed the pressure line to the flow regulator valve first. I removed this valve to see if the spring was still intact. It was, but I bypassed the assy with straight through fittings and there was no change. I also removed the safety down valve at the bottom of one of the 2 2nd-stage pistons. That spring and operation on that fitting also seemed to be operational.
I have noticed now though, that the lift seems how slowed down also. Doesn't lift at the same rate as any of the other "sister" machines. I'm going to try and see if the lower solenoid is getting the same voltages as one of my known good machines.
I still appreciate any of the input in the meantime.

Thanks