Method For Changing Over And Connecting Hydraulic Circuit Of Machines Ready For Installation Of Attachment - Komatsu PC30MR-5 Operation & Maintenance Manual

HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT ATTACHMENTS AND OPTIONS
ATTACHMENT 1 PROPORTIONAL SWITCH
Use the 1st-line attachment proportional switch when operating
general attachments such as crusher, etc.
Flow rate can be adjusted according to the operating amount of
1st-line attachment proportional switch.
This switch does not operate unless the working mode selector
switch is set to attachment mode.
Push it to the right.
Oil flows to the piping on the right side of the arm (hydraulic
tank side).
Push it to the left.
Oil flows to the piping on the left side of the arm (operator's seat side).
BREAKER OPERATION SWITCH
The breaker operation switch is used to operate the breaker.
Press the breaker operation switch and the oil flows continu-
ously to the piping at the left side of arm (operator's seat side),
and the breaker operates.
Press the breaker operation switch once more and the breaker
stops.
This switch does not operate unless the working mode selector
switch is set to attachment mode.
HORN SWITCH
The horn switch is used to sound the horn.
METHOD FOR CHANGING OVER AND CONNECTING HYDRAULIC CIR-
CUIT OF MACHINES READY FOR INSTALLATION OF ATTACHMENT
METHOD FOR CONNECTING HYDRAULIC CIRCUIT OF MACHINES READY FOR
INSTALLATION OF ATTACHMENT
NOTICE
2
Since the pressure of attachment hydraulic circuit of this machine is set to 20.5 MPa {210 kg/cm },
check the withstand pressure of installed attachment.
6-10
WENAM00150