Komatsu PC27R-8 Operation & Maintenance Manual page 72

INSTRUMENTS AND CONTROLS
3-4 - TRAVEL AND STEERING CONTROL LEVERS
DANGER
Before carrying out any manoeuvre with these levers, the
operator must be seated in the work position with fas-
tened safety belt.
Before moving, make sure that the upper structure is di-
rected towards the blade and that all the safety devices
have been engaged; if the upper structure is turned by
180°, the controls are inverted.
(See "3.6.5 HOW TO MOVE THE MACHINE").
Failure to comply with these rules may result in serious
accidents.
The levers (3) and (4) serve to operate the left and right travel
motors, respectively, and control the forward and the reverse
gear according to the movements indicated.
N - Neutral
A - Forward gear
B - Reverse gear
IMPORTANT
All movements are locked by shifting the safety device le-
ver to the lock position (see pos. 8).
5 - BOOM SWING CONTROL PEDAL
DANGER
Always engage the safety device (1) when the use of this
control pedal is not required, during travel and when park-
ing the machine.
If this control pedal is inadvertently pressed, it may cause
serious accidents.
This pedal controls the boom swing to the right and to the left ac-
cording to the movements indicated.
N - Neutral
A - Swing to the left
B - Swing to the right
IMPORTANT
All movements are locked by shifting the safety device le-
ver to the lock position (see pos. 8).
The boom swing is useful when it is necessary to dig be-
yond the track outline; do not use it during the work cycle.
70
3
4
A
N
B
1
RWA07310
RWA07300
RWA05660
RWA05650