freightliner CENTURY CLASS S Driver Manual page 173

WARNING
Do not use the trailer air supply for parking trail-
ers not equipped with spring parking brakes.
This applies the trailer service brakes only. As air
bleeds from the trailer brake system, brake appli-
cation is lost. This could allow the unattended
vehicle to roll away, possibly resulting in serious
personal injury or death.
3. Chock the front and rear of the trailer tires to
prevent the trailer from moving.
4.
Lower the trailer landing gear until the weight is
removed from the fifth wheel.
5.
Disconnect the tractor-to-trailer air system lines
and electrical cable. Plug the air lines to prevent
dirt or foreign material from entering the lines.
NOTICE
Before attempting to lock or unlock the fifth
wheel lock mechanism of a sliding type fifth
wheel, the slide release pull handle, if so
equipped, and the slide locking wedges must be
in the locked position. This prevents the sliding
member from moving rapidly to the far forward or
rearward position, which could damage the fifth
wheel member or kingpin.
6.
Release the kingpin locking mechanism by lifting
the safety latch and pulling the lock control
handle to the unlocked position. See
7. Slowly drive the tractor away from the trailer.
Fifth Wheel Slide Operation
1. Connect the trailer kingpin to the tractor fifth
wheel. For instructions, refer to Fontaine "Fifth
Wheel Locking Operation," in this chapter.
2. After positive lockup of the fifth wheel lock
mechanism has been accomplished, release the
slide using one of the following methods:
2.1
For air-operated release models, set the
cab-operated control switch
UNLOCK.
2.2
For manual release models, lift the slide
release pull handle to disengage it from
the guide plate. Then, pull out the handle
(Fig. 10.17) until it is in the unlocked posi-
Fifth Wheels and Trailer Couplings
10/26/2010
Fig. 10.17, Fontaine Sliding Fifth Wheel Manual Release
3.
4.
Do not use the trailer air supply for parking trail-
Fig. 10.16.
ers not equipped with spring parking brakes.
This applies the trailer service brakes only. As air
bleeds from the trailer brake system, brake appli-
cation is lost. This could allow the unattended
vehicle to roll away, possibly resulting in serious
personal injury or death.
5.
After moving the fifth wheel to the desired posi-
(Fig. 10.6) to
tion, be sure the trailer landing gear will not, at
any time, come in contact with the tractor frame
or other components. Make sure that the front of
the trailer will not come in contact with the rear
of the cab or with other components if they ex-
tend beyond the rear of the cab.
tion and can be positioned against the
guide plate to hold it out. The slide re-
lease pull handle will stay in the unlocked
position until it is manually disengaged
from the guide plate.
Lower the trailer landing gear just enough to re-
move the weight from the tractor.
Pull the trailer air supply valve to cut off the air
supply to the trailer.
WARNING
Chock the front and rear of the trailer tires to
prevent the trailer from moving.
NOTICE
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10.14