- Parking of tractor and trailer
- inspect the parking area for any hazards and level and firm ground conditions
- park the tractor and trailer in a straight line
- chock trailer wheels, if required
- Trailer air suspension
- ensure air bags have deflated
- Lower landing gear
- use dolly pads anytime the trailer is loaded or if ground conditions are less than ideal
- lower landing gear until most of the trailer weight is off the tractor but does not raise the trailer completely off the fifth wheel
- Disconnect air and electrical lines
- stow the couplers using the dead-end couplers and plug holder on the tractor and ensure the lines are secure
- Uncoupling of fifth wheel from kingpin
- release and unlock the fifth wheel from the kingpin
- slowly drive ahead when the kingpin is just clear of fifth wheel jaws, stop the tractor
- release or dump the tractor air suspension
- continue to slowly drive forward and stop the tractor when the fifth wheel is fully out from under the trailer, but the frame of the tractor is still under the trailer
- Confirm trailer stability
- ensure the ground and landing gear will support the weight of the trailer
- Clear tractor from trailer
- slowly drive forward until the tractor is clear of the trailer
- restore the tractor air suspension to its normal height before driving away
Professional Driver's Handbook
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