Komatsu ecot3 Operation And Maintenance Manual page 131

DETAILED CONTROLS AND GAUGES
Emergency Pump Drive Switch
NOTICE
This switch is provided to enable you to carry out operation temporarily, when any problem occurs on the pump control
system. Do not use it except in emergency. Furthermore, remove the cause of the problem immediately.
If this switch is depressed and moved to the EMERGENCY position by mistake, thereby engaging the machine in the work,
while the machine is in normal condition, an "E02" mark is shown in the display.
If "E02" is displayed during the work, check that the switch is in the NORMAL position.
This switch (9) is used to make it possible to carry out operations
temporarily if any problem should occur in the pump control system
(when the display shows "E02").
(a) EMERGENCY: When abnormal (move switch up)
(b) NORMAL: When normal (move switch down)
If the display shows "E02", move the switch up to make it possible
to carry out work.
Swing Brake Cancel Switch
NOTICE
This switch makes it possible to perform swing operations for a short time even when there is a problem in the swing parking
brake electric system. DO NOT use this switch except in emergencies. Repair the problem as soon as possible.
This switch (10) is used to make it possible to carry out operations
temporarily if any problem should occur in the swing brake system
(when the upper structure does not swing but the display does not
show "E03").
(a) FREE: When abnormal (move switch up)
(b) NORMAL: When normal (move switch down)
If the display does not show "E03", move the switch up to FREE
position (a) to make it possible to carry out work.
When the switch is moved to FREE position (a), the swing lock
monitor flashes.
Revolving Warning Lamp Switch
(If equipped)
Use this switch (11) to light up the yellow rotating lamp on top of the
cab.
(a) ON: Lamps light up
(b) OFF: Lamps go off
3 - 74
OPERATION