Crown SC4020-30:
lost travel and nothing else

I have a SC4020-30, serial 9A133709. the truck was running good. The operator took it in the cooler, about 45-50 degrees, and worked for about an hour before the truck died. He says the hour meter was blank, had no travel, but had steering and all hydraulics. No codes that I know of. Anyone got any ideas or ran into something like that before?
  • Posted 3 Jul 2014 08:37
  • Discussion started by Madfish
  • Missouri, United States
Showing items 1 - 5 of 5 results.
I have the Master/slave ge controllers. the truck hasn't gone dead again since then. But, we I go back in a few weeks to do the maintenance on it I'll pull the card and check for bad solder joints
  • Posted 6 Jul 2014 07:46
  • Reply by Madfish
  • Missouri, United States
My Mistake soz
  • Posted 4 Jul 2014 23:52
  • Reply by lifter01
  • West Yorkshire, United Kingdom
Sorry lifter01 but you are wrong. SC3000 has Zapi contollers, SC4000 has master/slave GE Gen II SX units (not an EV100 panel as per SP), SC4500 (A/C) has Access units as does SC5x00. SC4000, SC4500 and SC5x00 all have distribution boards.

No Access in the OP's truck so no dash menu. Apparently no BDI/hour meter display working hence my post about no power from the GE controller.
  • Posted 4 Jul 2014 19:09
  • Reply by techno_nz
  • Canterbury, New Zealand
if you can get into the dash service menu see if access 3 is showing as on also check if the brakes are releasing in service got to drive motor and see if its pulling any amps as you try to drive. I've had a few trucks used in cold stores where the brakes have seized onto the rotor on the end of the motor. The SC doesn't have a GE panel with the distribution board the SP has that SC controllers are actually Zapi units re-badged as Crown
  • Posted 4 Jul 2014 05:41
  • Reply by lifter01
  • West Yorkshire, United Kingdom
Check the back of the distribution board for poor solder joints, sounds like GE controller isn't getting keyswitch feed, need to check wiring diagram to be sure but distribution board is always a good place to start. Do you have a handset to plug in, if it shows 8888 you know the controller has power.
  • Posted 3 Jul 2014 20:18
  • Reply by techno_nz
  • Canterbury, New Zealand

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