Hi, i am working on an RRE140 year 2009 the lift will not go past the first stage, it is fine but as soon as it should go into the second stage it just comes to a sudden stop, i have been getting various errors of 4:181,4:183 and 4:185 i have changed one of the sensor bearings and also one of the the sensors but still hasn't worked, i am also getting to a stage that when i have lifted it to the maximum lift (that i can) if i operate the lift lever again, the hydraulic motor still runs on but once i release the lever the weight on the dash rises even though there is no weight on the forks.

I have got the information how to do a calibration but have know idea how to get into the truck settings, if someone can help on these issues that would be great.