TM 5-3810-306-10
When moving in tight quarters, post a look-out to
help guard against running into objects.
Never back up without the aid of signalman. He
should assure that the area behind the crane is clear
of objects and/or personnel.
6.
Traffic - When traveling, keep lights on, use traffic
warning flags and signs, and use front and rear flag
vehicles. Check state and local restrictions and
regulations.
Drive carefully and avoid speeding.
7.
Towing - Should the crane become mired down, use
a tow truck or tractor to free the crane. The
transmission or axles can be damaged if you attempt
to free the crane without help.
On open ground, tow or pull using only on the pintle
hook or the two tow lugs installed on each end of the
crane. When using tow lugs, always tow using a
towbar conforming to MS50048, heavy duty capacity.
Contact Organizational Maintenance to disconnect
the front drive line before towing the crane. Ensure
the drive axle selector is at 2WD-HI, to lockout the
rear drive line.
STEERING - Steer the front wheels by turning the
steering wheel and steer the rear by pushing/pulling the
STEER control lever. Used singly or together, these
controls provide:
1.
Front Wheel Steering. The steering wheel controls
the front wheels. This method of steering should
always be used when traveling at higher speeds.
Turning the wheel clockwise steers the crane to
right. Turning the wheel counterclockwise steers the
crane to the left.
CAUTION
Use rear steering only on the job site.
2.
Rear Wheel Steering. Rear wheel steering is
controlled by the STEER control lever. Pushing or
pulling the control lever moves the rear steer
cylinders.
a.
To steer the rear of the crane to the left, push
STEER lever forward.
b.
To steer the rear of the crane to the right, pull
STEER lever.
c.
Four Wheel Steering. Four-wheel steering is
performed using the steering wheel and STEER
control lever. Four-wheel steering requires
turning the front and rear wheels in the same
direction. The effect is in a tighter turning radius
which will enable you to work the crane in-close
when necessary.
d.
Crabbing. Crabbing implies turning the front and
rear wheels in opposite directions (i.e., if the
front wheels are steered left, then the rear
wheels are steered right). The effect of crabbing
is the crane moves in a diagonal direction,
enabling you to work the corners of crane in
close when necessary.
MOVING THE CRANE - FORWARD
1.
Position DRIVE AXLE selector switch to either 2
WD-HI or 4WD-LO.
2.
Position transmission shifting lever to first gear (1)
position.
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