Komatsu PC350LC-8, Operation & Maintenance Manual

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ATTACHMENTS AND OPTIONS
MACHINE READY FOR ATTACHMENT
6-9
Attachment Control Pedal
WARNING
Do not carry out operations with your foot on the pedal. If the pedal is depressed by mistake, the attach-
ment may suddenly move and cause a serious accident. Lock the pedal with the lock pin when you are not
operating the attachment.
This pedal (3) is used to control the attachment.
When the front, center (neutral), and rear of the pedal are
depressed, the movement of the attachment is as follows.
Hydraulic breaker
Front of pedal (A): Actuated
Center of pedal (N): Stopped
Rear of pedal (B): Stopped
Regarding other attachments, hold a meeting with the attach-
ment maker at the time of installation to confirm the operation
of the pedal and attachment before using it.
Lock Pin
This pin (4) locks the control pedal.
Position (a): Locked
Position (b): Only front of pedal can be operated to full position
(rear is locked)
Position (c): Both front and rear of pedal can be operated to
full position
q
When not using the attachment, set the lock pin to position
(a).
q
When using the breaker, use the working mode selector
switch on the monitor switch portion to set the working
mode to B mode, and set the lock pin to position (b) when
using the pedal and position (a) when using the breaker
switch (9).
q
When using the crusher, use the working mode selector
switch on the monitor switch portion to set the working
mode to ATT mode, and set the lock pin to position (c)
when using the pedal and position (a) when using the roll-
ing switch (7).
NOTICE
q
When using the breaker, if the lock pin is set to position (c) and the pedal is operated in direction (D),
it will cause damage or defective operation of the breaker. To prevent this, when using the breaker,
always set the lock pin to position (b).
q
Before changing the position of the lock pin, stop the engine.