Komatsu PC30MR-5 Operation & Maintenance Manual page 125

OPERATION
If the wiper and washer position (b) is kept pressed while the
wiper is in operation, the injection of the window washer fluid
and the wiper operation are performed simultaneously.
If the wiper switch is released, it returns to the wiper and wash-
er position (b), the injection of the window washer fluid stops,
and the state becomes that only the wiper is operated.
ROOM LAMP SWITCH
(Machine with cab specification)
NOTICE
If the room lamp is left lit on, the batteries may be exhausted. Always turn the switch to OFF position
after using room lamp.
Use room lamp switch to light up the room lamp.
It does not light up when the starting switch is at OFF position.
(a), (b) ON position
Lights up
(c) OFF position
OFF
PUMP SECONDARY DRIVE SWITCH
NOTICE
• Use the pump secondary drive switch only in an emergency. Repair the problem as soon as possi-
ble.
• If the pump secondary drive switch is moved to
"Emergency" position by mistake while the machine is
operating normally, "L03" is displayed on the machine
monitor.
If "L03" is displayed during operation, press the func-
tion switch "F3" on the machine monitor, and check
whether the current failure code includes any of the
hydraulic system errors "DXA8KB" and "DXA8KA". If
there is the hydraulic system error, repair the error as
soon as possible.
Check that the pump secondary drive switch is in "NORMAL"
position (b). If not, return the switch to "NORMAL" position (b).
When the current failure code includes either of the hydraulic
system error "DXA8KB" or "DXA8KA", the pump secondary
drive switch enables you to operate the work equipment or the
machine temporarily by turning the switch to EMERGENCY po-
sition (a).
(a) Emergency
When abnormal (switch is set to upper position)
(b) Normal
When normal (switch is set to lower position)
WENAM00150
EXPLANATION OF COMPONENTS
3-59