Discussion:
Traction Disabled, Calibration Not Accepted, Code 491 493

Looking for a CROWN EXPERT, Traction cutting in / out. have did previous calibrations in past and unit worked for couple weeks at time. Now does not run. currently at a loss, Code 491 and 493 , traction disabled, calibration not accepted. Do i need to replace POT ? / Joystick assembly? Thanks!
  • Posted 23 Jan 2019 18:42
  • By gbcurrie
  • joined 23 Jan'19 - 4 messages
  • Ontario, Canada
Showing items 1 - 2 of 2 results.
Thank You for the heads up!! This is the only crown unit in our city I work on as all my other customers have Hysters, so I do not have much help for tech support , I will check the sensors tomorrow.
  • Posted 24 Jan 2019 13:00
  • By gbcurrie
  • joined 23 Jan'19 - 4 messages
  • Ontario, Canada
sounds like either the Fwd or Rev optical switch is sticking. you can check it the analyzer menu. May be able to clean them but will probably have to replace them. Hope that helps.
  • Posted 24 Jan 2019 06:17
  • By JMC1
  • joined 8 Nov'18 - 50 messages
  • Iowa, United States

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Global Industry News
edition #1247 - 11 September 2025
In what may prove to be a sign of things to come, Canadian materials handling equipment lithium-ion battery manufacturer, UgoWork, has announced battery assembly for some forklifts bound for the North American domestic market will now be done in the US. See the story for full details... Continue reading
Upcoming industry events …
September 24-25, 2025 - Tangiers, Morocco
September 25, 2025 - South Brisbane, QLD, Australia
October 23, 2025 - Atlanta, GA, United States