Hunslet 1508-45:
suddon surge of speed

The driver of this truck reported that when he was driving all of a suddon the truck just sped up and he couldnt control the speed. It was like the truck went full speed or nothing? But when I came to check the truck over the next day, the problem was gone and the speed control was fine? Any ideas
Hunslet Lizard model 1508-45 serial number RTNO-562 not sure on year of manufacture
  • Posted 18 Jul 2013 00:22
  • Discussion started by suchy1977
  • humberside, United Kingdom
Showing items 1 - 3 of 3 results.
Edward
I wasn't refering to the bad spot as being an "open circuit". I was leaning more toward it being a "hotspot", causing the voltage to jump to full range instead.
Maybe I should have clarified that instead of just throwing out that rather broad suggestion. :o)
Sorry about that
  • Posted 18 Jul 2013 22:51
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
what type of controller is fitted? very few controllers will have high speed as the 'open circuit failure' of the pedal position pot.
I think it is more likely the linkage to the pot slips, I have seen some that have a piece of hose to connect the pot shaft to the linkage, and the hose slip, but even that will eventually show a code in an ev100 (or newer) system.
  • Posted 18 Jul 2013 20:15
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"
Faulty accelerator?
A bad spot in the pot wiper may cause a sudden change in the signal to the controller causing it to go into full speed.
  • Posted 18 Jul 2013 03:24
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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