I. OPERATING INSTRUCTIONS
A.
Front Drive
When travelling through sand, loose dirt, mud, snow, ice,
or when ascending grades where the rear wheels might spin,
shift to front wheel drive for better traction. Shift before the
truck is in trouble. Engagement and disengagement of the
front drive axle can best be made while the engine is pulling
lightly. It can be shifted at any speed provided the rear
wheels are not spinning. The transfer case is equipped with
a switch so that the shift is indicated by a pilot light. The light
will come on when front drive is engaged.
B.
Underdrive
When slow, positive pulling power is desired, shift to
underdrive. Underdrive may be used to obtain a convenient
combination with third or direct for climbing some grades.
The transfer case should be shifted between high and low
range only when the truck is stopped.
C.
Power Take-Off
When the transfer case is equipped with a power take-off, the
PTO can be operated without moving the vehicle. To engage,
shift the automatic transmission into neutral and shift the PTO
while the engine is idling. After the PTO has been engaged,
shift the transmission to the desired gear. With a manual
transmission equipped vehicle, depress the clutch pedal and
shift into the desired transmission gear, shift the PTO and
release the clutch.
To disengage the PTO, shift the transmission into neutral
(manual and automatic), allow the machinery to come to rest,
then disengage the PTO.
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