Hyster E 3.00 XL:
Drive problem

Hi, we have a drive problem on an old hyster truck (1987), Problem started when the truck got stuck outside in a rain shower. Immediately after this, It would initially jump forward and then cut out when the accelerator was pressed. We dragged it inside and dried everything out. Now there's no movement at all, The fwd and rev contactors operate as they should but the motor will only move very very slowly when the wheels are raised off the the floor the speed does in increase and decrease with pedal movement in both directions. Hydraulics all work fine. Thanks for any help in advance.
  • Posted 21 Mar 2024 20:36
  • Discussion started by Mark_Hartley
  • United Kingdom
Showing items 1 - 4 of 4 results.
Yes 68-72v with ignition on that reduces slowly when switched off , I assume capacitors holding charge etc? Thank you.
  • Posted 30 Mar 2024 21:11
  • Reply by Mark_Hartley
  • United Kingdom
Thanks Jessy, the battery is removed from the truck already
  • Posted 30 Mar 2024 02:27
  • Reply by Mark_Hartley
  • United Kingdom
Remove the battery then connect to battery via a jumper cable to the truck and see if your voltage reading through the frame disappears and if the unit operates fine with the battery out of it. If so then check for a voltage between the battery case and battery cable terminals.
Voltage leakage through the case can effect the operations of the unit.
  • Posted 30 Mar 2024 01:13
  • Reply by Jessy_Gomez
  • Texas, United States
JJG
Just to Add there is battery voltage 72v to the chassis with the ignition on??
  • Posted 22 Mar 2024 08:53
  • Reply by Mark_Hartley
  • United Kingdom

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