OEM Excavator Control Lever DH-7 Komatsu Excavator Joystick With Pilot Valve

Wondering how the DH-7 excavator control joystick with pilot valve actually works in a Komatsu excavator? In this video, we demonstrate the complete assembly, explain its hydraulic pilot proportional control system, and show how it coordinates all excavator movements like boom lifting, stick extension, and cab rotation. You'll see real operational insights and understand why this joystick is considered the 'steering wheel and limbs' of your machine.