FILM 518 1P7734 - Caterpillar

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(A) Articulation (B) Blade lift (C) Blade lift
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(D) Wheel lean (E) Circle drive (F) Centershift (G) Side shift (H) Blade tipThere are nine standard implement circuits on the machine. Eight control valves are for cylinder circuits and one control valve is for the motor that rotates the blade around the drawbar. The implement system can accommodate as many as 14 implement control valves. The individual control valves regulate the operation of each implement. When the operator moves the joystick control, an electrical signal is sent to a directional solenoid. When the solenoid is energized, pilot oil will be directed to one side of the valve spool. The valve spool will shift. Oil will be directed to the corresponding implement.Some of the Motor Graders may have different implements. The number of the control valves in each valve group may vary. When an implement control valve is replaced, use the same part number. This will keep the control valve and the cylinder matched.ReferenceFor additional information on the hydraulic system, refer to the hydraulic schematic for your machine.