Komatsu PC138US-11 Operation & Maintenance Manual page 161

OPERATION
If the lock lever automatic lock function is abnormal, when the
lock lever is canceled normally under the condition that the
work equipment control lever or travel lever is in neutral posi-
tion, this function is actuated by mistake and the machine or
the work equipment may not move. The machine or the work
equipment can be operated temporarily by setting the lock lev-
er automatic lock cancel switch to cancel position (a).
(a) Cancel
When in abnormal and emergency condition (switch is set to
upper position)
(b) Normal
When normal (switch is set to lower position)
• When the lock lever automatic lock cancel switch is set to
cancel position (a), the lock lever automatic lock cancel pi-
lot lamp lights up. At the same time, the mode is displayed
in the center of the monitor display, and after 2 seconds,
the screen returns to the standard screen.
• After moving the machine or work equipment temporarily
by operating this switch, stop the engine, return the switch
to normal position (b), and then ask your Komatsu distribu-
tor for repair.
REVOLVING LAMP SWITCH
(if equipped)
Revolving lamp switch is used to light up the yellow revolving
lamp on top of the cab.
(a) ON
Lights up
(b) OFF
OFF
LOWER WIPER SWITCH
(if equipped)
When the lower wiper switch is pressed, the lower wiper is
turned on.
(a) ON
Lower wiper operates.
(b) OFF
Lower wiper stops.
WENAM00111
EXPLANATION OF COMPONENTS
3-91