THEORY OF OPERATION - CONTINUED
HYDRAULIC SYSTEM - CONTINUED
Pilot oil enters implement joystick at pilot pressure inlet. Illustration shows position of pilot pressure inlet,
connector for return line, and connectors of lines which go to end caps of main relief valve.
Joystick controls pilot oil, which controls movement of spools in main control valve. When hand lever is
moved, lever assembly will rotate. Adjustment pin will push down on upper plunger.