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MACHINE READY FOR ATTACHMENTS (SIMPLE HCU SYSTEM)
(2) SELECTOR VALVE
This switches the flow of the hydraulic oil.
For details of the attachment to install and direction of right 3-
way valve position, see "HYDRAULIC CIRCUIT (PAGE 6-12)".
(3) ATTACHMENT CONTROL PEDAL
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.
REMARK
This pedal cover (3) differs in thickness at both ends. It
can be installed facing in either direction, so install it
according to your own preference.
(4) 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
When using a breaker, select B mode on the monitor and set
the lock pin to position (b).
When not using the attachment, set the lock pin to position (a).
When using a breaker, select A or E mode on the monitor and
set the lock pin to position (c).
NOTICE
When using a breaker, if the lock pin is set to position (c)
and the rear portion (B) of the pedal is depressed, it will
cause defective operation or breakage of the breaker. Set
the lock pin to position (b) when using the breaker.
HYDRAULIC CIRCUIT
NOTICE
When a breaker is installed, use only B mode. Do not
use any other mode.
The standard set pressure of the service valve safety
valve depends on selector valve position selected when
the machine is shipped from the factory.
If selector valve is in the position for using breaker :
6-12
ATTACHMENTS AND OPTIONS
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