User Manual

4. Disconnect brake air and electric
lines from trailer
, and secure lines.
5. Unlock the fifth wheel release
handle if necessary, then unlock
the fifth wheel.
NOTE
Operating the release handle and un-
locking
the fifth wheel will depend on
the fifth wheel manufacturer.
6. Return to cab and release tractor
parking brake.
7.
Ease tractor forward enough for the
kingpin to clear the fifth wheel
(about 12 to 18 inches).
NOTE
Do not drive tractor free of trailer.
8. If the tractor has a rear air
suspension, deflate (dump) the
rear suspension enough so that the
fifth wheel will smoothly separate
from the trailer
.
Suspension Dump Symbol
9. Ease tractor forward, clearing the
trailer
.
10. If the rear suspension was
deflated, return rear suspension to
its normal height.
Air-Controlled Sliding Fifth Wheel
(option)
Vehicles that have an air-controlled sliding
fifth wheel have a fifth wheel slider lock
controlled by a switch on the accessory
switch panel. T
o operate this type of lock,
move the switch to the appropriate
position. By placing the switch in the
UNLOCK position, you can slide the fifth
wheel to various positions to adjust weight
distribution. There is a guard on this switch
to protect you against accidentally
activating or releasing the lock.
WARNING
Do not move the fifth wheel while the
tractor-trailer
is in motion. Your load
could shift suddenly, causing you to
lose control of the vehicle, which can
result in an accident. Never operate
the vehicle with the switch in the UN-
LOCK position. Always inspect the
fifth wheel after you lock the switch to
be sure the fifth wheel lock is engag-
ed. Failure to comply may result in
property damage, personal injury, or
death.
How to Slide the Fifth Wheel
DRIVING - Fifth Wheel
Y53-6113-1A1 (11/20) 159
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