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V. Daily inspection - classes A and D
Check coupling (visual inspection)
  • Leave the cab and look under the front of the trailer to be sure that its upper plate is resting firmly on the fifth wheel. If any space appears, the coupling is not secure.
  • Be sure the fifth-wheel release lever is in locked position and the secondary lock, if there is one, is engaged.
  • From behind the tractor and under the trailer, see that the jaws are completely closed.

Raise the landing gear after checking the hook-up and before moving the unit. Be sure the gear is fully raised. If you use a two-speed crank gear, place it in low range, and stow the crank securely.