Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 110 / 358

SWITCHES OPERATION
110
SWING LOCK SWITCH
WARNING
●
When the machine is travelling under its own power, or
when the swing is not being operated, always set the
switch to the ON (ACTUATED) position.
●
On a slope, the work equipment may swing to the down
side even if the swing lock switch is located at the ON
position. Be careful concerning this point.
This switch is used to lock the upper structure so that it cannot
swing. ON position (actuated):
When swing lock switch (9) is activated, the swing lock is always
applied and the upper structure will not swing even if the swing
lever is activated. In this condition the swing lock switch lamp and
monitor switch light up.
OFF position (cancelled):
The swing lock switch should only be activated when the upper
structure is motionless and with the swing lock lever in the neutral
position.
HORN BUTTON
When the lower button on the left control lever (18) is pressed, the
horn will sound.
Note: Additional horn switch is on end of steering column stalk
(24a).
POWER MAX BUTTON
The upper button (21) of the left control lever is used to actuate
the power max function. Press the button once (single click) and
keep it depressed the power max. function actuates for a max.
8.5 seconds in A and E mode.
9
Left control
18
lever
24a
21
Left control
lever