COUPLE TO SEMITRAILER (Con't).
Check kingpin connection and fifth wheel slide locks by pulling tractor gently
forward against locked semitrailer brakes or blocked wheels. As resistance is felt, select
transmission shift selector Reverse (R) pushbutton and gently back tractor to verify fifth wheel
slide locks in both directions. When resistance is felt, select transmission shift selector
Neutral (N) pushbutton and set parking brake.
Verify that lock release handles are in.
Check semitrailer lights.
Stow wheel blocks.
Lift and secure semitrailer landing gear and stow float pads.
UNCOUPLE FROM SEMITRAILER.
Use caution when uncoupling from semitrailer. BE ALERT for
personnel in area. Ensure that hands, arms, and body are clear of
potential pinch points. Failure to follow this warning may result in
injury to personnel.
· Truck and semitrailer must be aligned.
· Use ground guide if one is available.
Stop truck and semitrailer.
Shift transmission into Neutral (N) (paragraph 2-13).
Block wheels as required.
Pull semitrailer air supply valve OUT.
Apply parking brake (paragraph 2-2).
Place float pads under semitrailer landing gear and lower landing gear.
Set semitrailer hand brake control valve and close semitrailer air supply valve.
Disconnect and stow semitrailer air supply lines and intervehicular cable.
If connected, disconnect and stow ABS electrical cable.
Pull secondary lock release handle (2) out and lift to engage catch.
Pull primary lock release handle (1) out.
Release parking brake and slowly pull forward until semitrailer clears fifth wheel.