C-1
C-1
Outrigger System C-1
Outrigger System
1. General Hydraulic Circuit for Outrigger
4. During outrigger retraction, the pressure oil
1. The outrigger controls use the solenoid control valve to select between extension or retraction for
passes through the solenoid control valve and
each cylinder. The solenoid valve selects between
pilot check valve, and operates on the retraction
operation of the extension cylinder and the jack
side of the extension and jack cylinders. Only the
cylinder.
circuit of the cylinder selected by the solenoid valve retracts.
2. During outrigger extension, the pressure oil from
5. The maximum puressure in the outrigger hydraulic
the pump passes through the solenoid control
circuit is regulated by the relief valve.
valve and solenoid valve to enter the cylinders. 3. At this time, back pressure is generated in the return oil by the pilot check valve. The return oil then passes through the solenoid control valve and returns to the tank.
1
WC02-0280E
