*make sure surface of parking area can support weight of trailer.
*have tractor lined up with the trailer. (pulling out at an angle can damage landing gear.)
EASE PRESSURE ON LOCKING JAWS
*shut off trailer air supply to lock trailer brakes
*ease pressure on fifth wheel locking jaws by backing up gently. ( this will help you release the fifth wheel locking lever.)
*put on parking brakes while tractor is pushing against the kingpin. ( this will hold rig with pressure off the locking jaws.)
CHOCK TRAILER WHEELS
*chock the trailer wheels if the trailer doesn not have spring brakes or if you are not sure. ( the air could leak out of the trailer air tank, releasing its emergency brakes. without chocks, the trailer could move.)
LOWER THE LANDING GEAR
*if trailer is empty, lower the landing gear until it makes firm contact with the ground.
*if trailer is loaded, after the landing gear makes firm contact with the ground, turn cranks in low gear a few extra turns. this will lift some weight off the tractor. (do not lift trailer off the fifth wheel.) this will make it easier to unlatch the fith wheel and easier to couple next time.
DISCONNECT AIR LINES AND ELECTRICL CABLE
*disconnect air lines from trailer. connect air line glad hands to dummy couplers a back of cab or couple them together.
*hang electrical cable with plug down to prevent moisture from entering it.
*make sure lines are supported so they will not be damaged while driving the ractor.
UNLOCK FIFTH WHEEL
*raise release handle lock
*pull the release handle to "open" position
*keep legs and feet clear of the rear tractor wheels to avoid serious injury in case the vehicle moves.
PULL TRACTOR PARTIALLY CLEAR OF TRAILER
*pull tractor forward until fifth wheel comes out from under the trailer.
*stop with tractor frame under trailer (prevents trailer from falling to ground if landing gear should collapse or sink.)
SECURE TACTOR
*apply parking brake
*place transmission in neutral
INSPECT TRAILER SUPPORTS
*make sure ground is supporting trailer.
*make sure landing gear is not damaged.
PULL TRACTOR CLEAR OF TRAILER
*release parking brakes
*check the area and drive tractor forward until it clear.
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