Hyster H40HSD:
Irratic acceleration

Ser# A219N02622D
Acceleration is very irregular in both directions, no codes, battery voltages good and drive motors check out.
I attempted to dissemble the joystick to check pot values but doesn't appear to be serviceable. I do not have any manuals on this unit but need some guidance.
  • Posted 7 May 2015 03:16
  • Discussion started by BrewCrew
  • Ontario, Canada
We`re here for a good time
Showing items 1 - 3 of 3 results.
Info for future reference, the steer pot was faulty ( resistance was all over the place ). With independent drives , the controller was fooled that it was turning right then left consistently. Had me fooled :)
  • Posted 16 Jun 2015 11:27
  • Reply by BrewCrew
  • Ontario, Canada
We`re here for a good time
Hey Swoop , would u have procedure and details
for accessing on board computer and values ?
  • Posted 7 May 2015 23:55
  • Reply by BrewCrew
  • Ontario, Canada
We`re here for a good time
the only way you are going to be able to diagnose the joystick is to access the onboard diagnostic and see what the joystick is doing related to the travel pot voltages. I think you will find if the travel is that erratic then the pot voltages will also reflect this.
Since the joystick is not servicable (some of the early on ones were not) then it will have to be replaced.
  • Posted 7 May 2015 22:04
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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