Hook up:
- Line up with trailer, stop as rear drives just under trailer.
- Chock trailer, check for spring brakes.
- Check kingpin, trailer to tractor height, fifth wheel plate angle, jaws open and unlocked, confirm tractor straight and centered to trailer.
- Back tractor to kingpin.
- Tug on trailer twice, no brake unless start driving away.
- Set park brake.
- Visually check that fifth wheel release handle is in the lock position and that jaw(s) is / are behind kingpin.
- Connect glad hands and light cord.
- Push in trailer air supply.
- Air up trailer airbags, pick up chock blocks.
- Crank landing gear up.
- Pull ahead and confirm all trailer wheels turning.
- Use trailer brake hand valve (spike) to stop to ensure trailer service brakes working.
Unhook:
- Pop red valve.
- Chock trailer, drop trailer airbags.
- Crank landing gear down to contact ground.
- Disconnect glad hands and light cord, put under bungee.
- Pull fifth wheel release.
- Pull tractor ahead six inches, set park brake, dump airbags.
- Confirm separation between tractor and trailer, and stability of landing gear.
- Pick up chocks.
- Pull tractor out from under trailer, air up airbags.