Clark CMP-40D:
c40d not working

Forklift is showing Sub Controller KO on the screen, will not start
  • Posted 26 Jun 2018 03:04
  • Discussion started by fred_i
  • Texas, United States
Showing items 1 - 7 of 7 results.
I might be late to the party but make sure the dash shows the correct model number and not a C40L or something else.
Also, make sure the battery is good. If they are constantly jumping the truck or starting the engine off a battery charger that can cause premature failure of the sub-controller.
  • Posted 27 Jul 2018 04:23
  • Reply by kelsey
  • Tennessee, United States
Thanks for the help, we are trying to track down any wiring issues but havent found any at this point.
  • Posted 27 Jun 2018 00:34
  • Reply by fred_i
  • Texas, United States
If that controller is the "Transmission Sub Controller" had issues with no up shift with that and found wiring loose pins in plug. Clark may have an update? You may have to contact Clark directly.
Also, have had some problems with poor grounds and ripple voltage from the alternator in the past causing frequent electronic component failure.
  • Posted 27 Jun 2018 00:13
  • Reply by tom_p
  • Alberta, Canada
The engine is a Kubota V3800-T Ser No. 2CS1732 Code No. J412-29000 Wont crank at all, if I change the controller it fires up but this is the 3rd controller in 6 months
  • Posted 26 Jun 2018 22:24
  • Reply by fred_i
  • Texas, United States
cannot find KO fault in dash or engine fault list. what engine is in that lift?
Cranks but will not start? Or no crank at all?
.
  • Posted 26 Jun 2018 07:31
  • Reply by tom_p
  • Alberta, Canada
Ser. No. P455D-0267-9884 KF
Mod. No. C40D
  • Posted 26 Jun 2018 06:47
  • Reply by fred_i
  • Texas, United States
need full model and ser#
  • Posted 26 Jun 2018 04:35
  • Reply by tom_p
  • Alberta, Canada

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