A good test for checking the direction switch is.
With the truck switched on & your sitting on the seat, select a direction, press & hold down deadman pedal, briefly press the accelerator pedal to release the parking brake & then see if the truck will try & creep away uncommanded.
After a few seconds flick the direction switch to the other direction & see if it will creep away in the other direction uncommanded.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.