PART 4: CONTROLS AND DISPLAYS
PB1319 (CAT. NO. 5296 ) —30— 22-01691 (R02/02)
Fifth Wheel Lock (Slider Adjustment) Switch
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 posi-
tions 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
Single Valve
Your parking brake valve is a yellow diamond-shaped knob located
on the right-hand control panel. It controls the parking brakes for
either straight truck or tractor-trailer combinations.
• At a right-hand drive station, a second single valve is located on
the dash to the left of the steering wheel.
WARNING!
Do not move of the fifth wheel while the trac-
tor-trailer is in motion.
Movement of the fifth wheel while
a tractor-trailer is moving can cause a serious accident.
Your load could shift suddenly, causing you to lose con-
trol of the vehicle. Never operate the vehicle with the
switch in the unlock position. Always inspect the fifth
wheel after you lock the switch to be sure the fifth wheel
is engaged.
CAB CONTROL
0I
03031
02908
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