How do you adjustment on the fifth wheel on a volvo truck?

You have to have a trailer attached to do this. Lower the landing gear to the ground to take pressure off the fifth wheel. DO NOT RELEASE THE TRAILER KING PIN.

Go into the cab. To the right of the instrument panel, you'll see the switch for the fifth wheel slide. Unlock the fifth wheel. Pull backwards or forwards (whichever direction you're moving the fifth wheel). When you get it to where you want it, lock the fifth wheel. Pull forward or backwards slightly to ensure the fifth wheel is locked in place.