I am currently working on this scissor lift,original problem was that speed pot on original joystick became faulty and was not a repairable unit.We installed an aftermarket retrofit joystick that was supposed to be a direct replacement with just a few wiring changes,once installed the unit now has only high speed immediately once travel is enabled.I have gone as far as checking all wiring and even in stalling a new joystick unit.Any help would be greatly appreciated.
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ray, you have to determine whether your lift is a proportional drive or a "bang-bang" drive (the SJMs were all "bang-bang" drive as I remember) and match the joystick to the drive system. If you use the wrong joystick you will go into full speed immediately.
Recheck the wires that are changed ("just a few wiring changes") where they attach, between the new style and old. I think you will find there is a wire or 2 in the wrong spots...
I would also note that there are 2 different versions of the joysticks for these units, (which one was the old joystick) one has "varible speed [potentiometer controlled lift and traction]" and the other was 2 or 3 speeds [depending on how you count these things] so it may be that you got the wrong joystick.
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