Komatsu ecot3 Operation And Maintenance Manual page 362

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ATTACHMENTS AND OPTIONS
MACHINE READY FOR ATTACHMENT
Selector Valve
This valve (2) switches the flow of hydraulic oil.
It is automatically switched according to the selected working
mode. It is necessary to switch the working mode to match the
attachment that is installed. For details of switching the working
mode, see "HYDRAULIC CIRCUIT (PAGE 6-8)".
NOTICE
If a service circuit from the attachment maker has been added, the return
circuit may not switch automatically.
Attachment Control Pedal
WARNING
Do not carry out operations with your foot on the pedal. If the pedal is depressed by mistake, the attachment 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 attachment
maker at the time of installation to confirm the operation of the
pedal and attachment before using it.
6 - 5

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