OPERATION UNDER USUAL CONDITIONS - CONTINUED
OPERATE SLIDING FIFTH WHEEL/COUPLE TO SEMITRAILER - CONTINUED
Connect air hoses and light cables. Push semitrailer air supply control knob (3) IN, open
semitrailer supply valve, and set semitrailer control valve hand brake.
If semitrailer is ABS-equipped, connect ABS electrical cable.
Backing SLOWLY helps to prevent hitting too hard in coupling and damag-
Back up slowly until fifth wheel locks firmly to kingpin.
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 transmis-
sion shift selector R (Reverse) pushbutton and gently back tractor to verify fifth wheel
slide locks in both directions. When resistance is felt, select transmission shift selector N
(Neutral) pushbutton and set parking brake.
Place fifth wheel slide control lever (4) to UNLOCKED position to release two slide
locking plungers (5).
Drive tractor backward to position 5th wheel in HAUL position.
DO NOT operate vehicle if slide locking plungers are not fully engaged and
landing gear is not fully retracted. This could result in damage to tractor,
semitrailer, and landing gear.
Place fifth wheel slide control lever (4) to LOCKED position to engage slide locking
plungers. Ensure slide locking plungers (5) engage.
Verify that primary lock release handle (6) and secondary lock release handle (7) are in.