Hyster 80 FORTIS:
Can you one tell me what Fault 51-2 means and how to fix it?

We turned our forklift on this morning and fault 51-2 came up on our dash and now it's stuck in limp mode. Any idea's what that fault code is and how to fix it?
  • Posted 17 Jul 2020 01:13
  • Discussion started by tony_keltesch
  • Colorado, United States
Thank you - Tony
Showing items 1 - 2 of 2 results.
I just got the same code. Did replacing that part fix the issue?

Follow up: We replaced the throttle positioning sensor. Fully expected it to start working immediately. When it didn't work. We checked the throttle input/output. Notice the code was gone, no throttle. Remove pedal and dialed the sensor by hand. Re adjusted the input shaft to the pedal. Forklift is running.
  • Posted 1 Sep 2021 04:46
  • Modified 25 Sep 2021 00:26 by poster
  • Reply by Sean_Skro
  • Texas, United States
Sean
Throttle position sensor not tracking correctly. Look at the throttle pedal, shaft going through it possibly loose or worn bushing, also check where it goes into the sensor. This throws the throttle sensor out of adjustment. The old pedal assemblies had plastic bushings where the new ones are brass I believe. Good Luck
  • Posted 17 Jul 2020 23:21
  • Reply by Fishmech
  • Virginia, United States
The hard to do we do right away. The impossible just takes a little longer.

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