Komatsu A31001, Руководство по эксплуатации и техническому обслуживанию

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(19) Breaker operation switch
(20) Offset up switch
(21) Not used (22) Offset down switch
(23) Auto/manual switch
(24) Not used
LAMP SWITCH
Lamp switch is used to make the working lamp and monitor illu-
mination light up.
(a) Night position
Lamps light up and monitor illumination and control box are set
to night mode. Auto/Manual switch lights up.
(b) Day position
Lamps light up and monitor illumination and control box are set
to day mode.
(c) OFF position
Lamps go out.
(The monitor illumination and control box are set to day mode.)
BOOM SECONDARY DRIVE SWITCH
The boom secondary drive switch is used only when you are
forced to move the boom to secure the safety when the work
equipment stops due to the abnormality in the electrical sys-
tem.
If an action level indication (1) or caution lamp (2) is displayed
while all of the work equipment cannot move, press function
switch F5 on the machine monitor and check whether the cur-
rent error list includes “DB92KK” or the items of “DB9RKR” and
“DB9QKR” at the same time which indicate the abnormality in
hydraulic system. Also check that the boom secondary drive
switch is in normal position.
(a) Position for emergency
Set the switch to this position for emergency.
(b) Normal position
Set the switch to this position for normal operation.
If operation is performed with this switch at the emergency po-
sition (a), the semi-auto mode cannot be used.
EXPLANATION OF COMPONENTS OPERATION
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