Operation
Driving the Machine
57 9821/6100-4 57
Driving the Machine
General
WARNING When the cab is swung around so that it is facing the track motor end of the undercarriage, the
action of the track controls is reversed. Take extra care!
CAUTION Drive the machine smoothly. Spin turn manoeuvres, zig-zag driving or turning too fast can cause
the vehicle to overturn.
The track controls operate as described when the excavator is positioned about the dozer (or track motors at
the rear). If the excavator is at the opposite end to the dozer, the lever operation will be reversed. Always travel
the machine with the excavator positioned at the same end as the dozer, especially on hard and rocky ground.
Ensure you have complete field of vision when driving the machine.
To move the machine forward, push both levers forward. Release the levers to stop. Track motor braking occurs
automatically when the levers are released.
To move the machine backward, pull both levers backward. Release the levers to stop. Track motor braking
occurs automatically when the levers are released.
Figure 44.
A Forward travel B Backward travel
To turn the machine while you travel, move the lever back towards the central position on the side towards
which direction you want to go, for example, move the left lever back to turn left. This causes one of the tracks
to move slower than the other. The faster moving track will push the machine around. Release the lever to stop.
Figure 45.
C Turn right D Turn left
To spin the machine around through 360°, without moving it, operate one lever, in a forward position and the
other in a reverse position. This will cause the tracks to drive in opposite directions and hence push the machine
around.
Figure 46.
E Spin right F Spin left
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