Komatsu WA480-8, Operation & Maintenance Manual

Page: 412 / 440

You can select FORWARD, NEUTRAL, or REVERSE with the
multifunction mono-lever directional selector switch.
The basic operation is as follows.
Position (F): FORWARD
Position (N): NEUTRAL
Position (R): REVERSE
Before using this switch to change the travel direction, set the
directional lever to NEUTRAL position and set directional se-
lector enable switch (A) of R.H. switch panel to position (a).
PCS(PROPORTIONAL CONTROL SWITCH)
PCS (Proportional Control Switch) is used to operate the third
attachment.
The hydraulic oil discharged by the switch operation is in pro-
portion to the stroke of the switch.
The switch has 2 control modes; continuous mode and propor-
tional mode.
You can set the maximum flow when the switch is operated and
change the control mode on the monitor.
Position (A): RETRACT
Position (B): NEUTRAL
However, when switch is operated to limit of position (C) to enable the detent control in the continuous mode,
this position is for HOLD.
Position (C): EXTEND
HANDLE MULTIFUNCTION MONO-LEVER ATTACHMENTS AND OPTIONS
6-6