front-wheel steer position, the rear wheels will center
CAUTION
automatically. The crab position of the steering selector
Do not engage the front axle drive at high speed.
control allows both front and rear wheels to be turned in
the same direction, allowing the machine to be moved at
(6) Position the transmission gear selector lever (11) in
an angle, sideways for precise positioning. Moving the
number one position and accelerate the carrier slowly.
steering selector control back to front-wheel steer
Shift the transmission to the desired running gear ratio,
position will automatically center the rear wheels. A lock
one position at a time.
is provided that must be released to move the steering
CAUTION
selector control. The front-wheel steer position of the
Do not skip shift the transmission.
steering selector control provides conventional front
wheel steering for normal operation. A manual rear
c.. Towing.
steering lock is provided for the rear axle and should be
(1) Use a vehicle with an air brake system capable
installed for over-the-road travel (fig. 2-12).
of producing 120 psi air in the system.
(2) Use medium tank tow-bar, "V" type, 8-1/2 feet
CAUTION
long, heavy duty, FSN 4910-378-2012 for towing.
Install rear steering lock for over-the-road travel
(3) If possible, place the boom over the front which
and do not forget to remove this lock when four-
is the most stable position for towing.
(4) If towing is to be for more than 1/4 mile or at
wheel or the crab position steer is desired.
speeds in excess of 5 miles per hour, disconnect the
propeller shafts from the front and rear axles as shown in
(5) If the terrain to be traveled is very rough, it may
be desirable to operate the carrier in four-wheel drive. If
(5) Install the rear wheel steer lock.
so, pull the front axle declutch control (12, fig. 1-14) back
(6) Install the utility blade brace as illustrated in
to engage the front axle drive.
(7) Connect the tow-bar and jumper air hoses as
illustrated in figure 2-22.
2-32
