SHIFT AT ANY SPEED EXCEPT
IF A WHEEL IS SPINNING
03029
PART 7: STARTING & OPERATING THE VEHICLE PUTTING THE VEHICLE IN MOTION
(R10/06) Y53-6007 – 85 –
Interaxle In Lock
• Always UNLOCK the interaxle differential before shift-
ing the axle speed range.
CAUTION: If you shift the axle range with the
interaxle differential in LOCK, you could do
serious damage to your axles. Never shift the
axle range with the differential locked.
• Park the truck with the Range Selector in LOW.
Automatic and Automated Transmission
An automatic or automated transmission makes shifting
much easier. It remains important to completely under
-
stand how to operate the transmission to optimize its effi-
ciency. Please read the manual for your automatic or
automated transmission included with your vehicle.
WARNING! If your vehicle has a Freedom-
line™ transmission, be aware that it can roll
backwards when stopped on a hill or grade, or
when starting from a stop on a hill or grade.
This could cause serious damage or personal
injury. Observe the following guidelines:
• When stopped on a hill or grade, press the
brake pedal.
• When starting from a stop on a hill or grade,
quickly remove your foot from the brake
pedal and firmly press on the accelerator
pedal.
Auxiliary Transmission
If you have an auxiliary transmission, see your transmis-
sion manufacturer’s manual for its proper operation.
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