![]() I'm going to check out the motor controller and see if I can tell if that has been changed out, and if so the replacement might be newer with the "Creep Mode". My unit is a 1996 and from what I could find, they didn't come with the "Creep Mode", but it certainly acts likes that is what it is stuck in. How did you test the limit switches and where are they? I thought about replacing the joystick, but when I jacked up the drive wheels, the joystick worked fine, but didn't seem to have much power and that seems crazy as electric motors have a great deal of torque normally. Sounds like we have identical problems, except I have not replaced anything but the batteries at this point. Are these two issues, failure of the lower boom to lift and lethargic drive connected? All other functions work fine. I jacked up the drive wheels and they both move in both forward and reverse, but had no real power. I tested the motor controller and the voltage from the #4 pin and B- is over 50 volts, both static and under drive. Yes, the drive is still lethargic and I actually had to tow the unit with my tractor at one point to get it to move. Frustrated I left it alone for a week, when I went back to it now the lower boom works fine for a while, then while I was trying to use the unit, now the lower boom won't lift anymore and has not since. The drive was still lethargic and now the lower boom tries to lift but does not rise more than an inch no matter what the potentiometer is set at. When I checked the batteries that the previous owner had in place, they were a hodgepodge of different sizes with only 3 of the correct batteries, so I purchased a complete set of new, correct batteries. but the drive system was very slow and lethargic no matter how the potentiometer was set. All functions seemed to work fine, all lift functions, rotation, etc. I purchased a 1996 JLG 40E a few months ago.
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