DASH- AND DOOR-MOUNTED CONTROLS
Fifth Wheel Lock (Slider
Adjustment) Switch
WARNING!
Do not move the fifth wheel while
the tractor-trailer is in motion. Move-
ment of the fifth wheel while a trac-
tor-trailer is moving can cause a se-
rious accident. Your load could shift
suddenly, causing you to lose con-
trol of the vehicle.
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 is engaged.
Vehicles having an air slide fifth wheel
have a fifth wheel slider lock controlled
by a switch on the instrument panel.
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 over
this switch to protect you against
accidentally activating or releasing the
lock.
Parking Brake Valve and
Trailer Air Supply Valve
Before you leave the cab, apply all
parking brakes.
(03/17)
Y53-6060-1C1
3-57
3
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