Cat Lift Trucks (& Caterpillar) ET4000:
Micro command AC drive NO TRAVEL

Was running unit on blocks and ran down to last bar of BDI and battery light flashes and will not travel F or R. Still had hydraulics. Pushed unit over to charger. After 2 hours still no travel and no codes. Traction fuse is good. Getting voltage to the accel POT and out. Switch works as well when accellerator is pressed. The small toggle switch by the 2 fuses under the floor is in the centered position. Not sure what to look at next.
  • Posted 9 Oct 2015 08:49
  • Discussion started by AskJason
  • Missouri, United States
Showing items 1 - 4 of 4 results.
The on/off switch part of the accellerator Pot was not working. Found the break in the wire where accel harness goes into main harness. Found with a Power Probe. Fixed that and back in business. They run these units completely dead a lot. Micro commands do some crazy *** when they are going dead.
  • Posted 12 Oct 2015 20:19
  • Reply by AskJason
  • Missouri, United States
is your seat switch working properly. do you see the "L" "E" flicker in the dash when not seated
  • Posted 12 Oct 2015 14:23
  • Reply by alexlift
  • Quebec, Canada
Said the truck has a bad vibration. Drove under load fine. Blocked up to listen to drive units and check steering cut out to find this ghost vibration.
  • Posted 9 Oct 2015 23:27
  • Reply by AskJason
  • Missouri, United States
1st off, charge it for 8 hours not just 2 hours. then come back and tell use why you had it up on blocks running. does it have any codes on the dash?
  • Posted 9 Oct 2015 23:23
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"

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