3 - 8
When the power max switch on the left control lever is pushed ON, the power max solenoid valve is
actuated, the discharged oil from the pilot pump flows into Pz port of the main relief valve of main
control valve ; Then the setting pressure of the main control valve is raises from 320kgf/cm
2
to
350kgf/cm
2
for increasing the digging power. And even when pressed continuously, it is canceled
after 8 seconds.
3. MAIN RELIEF PRESSURE CHANGE CIRCUIT
BOOM2
TRAVEL MOTOR
ARM CYLINDER
BOOM CYLINDER
SWING MOTOR
HYD
TANK
PILOT PUMP
BOOM1
BUCKRT CYLINDER
TRAVEL
SWING
ARM
BUCKET
BOOM
RCV PEDAL
RCV LEVER(LH)
RCV LEVER(RH)
RELIEF VALVE
SPIN
FILTER
LINE
FILTER
ARM1
SWING
TRAVEL(RH)
ARM2
BUCKET
OPTION
TRAVEL(RH)
MAIN RELIEF VALVE
POWER MAX
SOLENOID VALVE
Pz
STRAINER
Pz
Summary of Contents for R 160 LC-3
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Page 182: ...4 44 No of pin Receptacle connector Female Plug connector Male 24 12 24 1 13 S815 024000...
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Page 416: ...8 103 Remove lock nut 21 and then boot 26 15...
Page 427: ...8 114 Install cover 3 to hub 1 and tighten bolts 14 Torque 5 5 12 5kgf m 40 90lbf ft 7 14 15 3...
Page 456: ...8 143 1 STRUCTURE GROUP 11 WORKEQUIPMENT SECTION A SECTION B SECTION C C B B A A C...