OPERATOR'S MANUAL

DASH- AND DOOR-MOUNTED FEATURES CONTROLS AND DISPLAY
– 62 – Y53-6027
Medium Duty (R05/09)
Two-Speed Rear Axle (Range) Switch
.
If your vehicle is equipped with a two-speed rear axle, you
can select the axle range by the dash mounted switch
shown above. The low range provides maximum torque
for operating off-highway. The high range is a faster ratio
for highway speeds.
For information on how to operate your two-speed rear
axle properly and safely, see “Dual Range (Two Speed)
Axles” on page 97.
Fifth Wheel Lock (Slider Adjustment) Switch
.
WARNING! Do not move the fifth wheel while
the tractor-trailer is in motion. Movement of
the fifth wheel while a tractor-trailer is moving
can cause a serious accident involving death
or personal injury. Your load could shift sud-
denly, causing you to lose control of the vehi-
cle. 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.
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
RANGE SELECTOR
FIFTH WHEEL