Richard
Member
Hi Guys,
I'm hoping with the vast amount of experience here in the forums, maybe you can give some tips on solving my problem cause I'm stumped.
I have a JLG 45ic manlift. I went to use it the other day and it would not move. Everything else works perfectly but when I move the joystick to drive, nothing happens. The engine does not load up at all....just does nothing. Well, after a bunch of testing and studying my service manual, I found the test readings on the HorsePower control card were not correct. Included in the control box is a bypass connector to bypass the HP control card. So I unplugged the HP control card and plugged in the bypass connector and it worked! I thought.....plug in the HP card and it won't move, bypass the HP card and it moves....this has GOT to be the culprit! So I remove the card and sent it to Hindley Electronics for repair. After about a week, they send it back saying it only needed some minor adjustments but checked out fine. GREAT! I re-install the card back in my machine and it's no different than when I sent it in. Still won't move.....voltage readings on the card at idle and high speed are still the same as before. I unplug the card, connect the bypass, and it will move again.
I'm stumped. I don't know what to check next. Any suggestions?
Thanks,
Richard
I'm hoping with the vast amount of experience here in the forums, maybe you can give some tips on solving my problem cause I'm stumped.
I have a JLG 45ic manlift. I went to use it the other day and it would not move. Everything else works perfectly but when I move the joystick to drive, nothing happens. The engine does not load up at all....just does nothing. Well, after a bunch of testing and studying my service manual, I found the test readings on the HorsePower control card were not correct. Included in the control box is a bypass connector to bypass the HP control card. So I unplugged the HP control card and plugged in the bypass connector and it worked! I thought.....plug in the HP card and it won't move, bypass the HP card and it moves....this has GOT to be the culprit! So I remove the card and sent it to Hindley Electronics for repair. After about a week, they send it back saying it only needed some minor adjustments but checked out fine. GREAT! I re-install the card back in my machine and it's no different than when I sent it in. Still won't move.....voltage readings on the card at idle and high speed are still the same as before. I unplug the card, connect the bypass, and it will move again.
I'm stumped. I don't know what to check next. Any suggestions?
Thanks,
Richard