Hydraulic oil flowing through crusher circuit does not pass through additional filter for breaker. Relief valve is set
to high pressure. Maximum oil flow can be adjusted in user mode.
Set pressure of safety valve of service valve (when shipped from plant): 24.5 MPa {250 kg/cm
2
}
Crusher circuit (2-way circuit) is formed.
METHOD FOR REMOVING AND INSTALLING ATTACHMENT
WARNING
Lower the attachment to the ground and stop the engine.
METHOD FOR REMOVING ATTACHMENT
1.
Turn the starting switch to ON (B) position.
2.
Set the lock lever to FREE position (F).
3.
Operate each work equipment control lever and attach-
ment control pedal fully to the front, rear, right, and left a
few times within 15 seconds to release the internal pres-
sure in the hydraulic circuit.
ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
6-21
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