두산 DH155 V 조이스틱 제어 밸브 420 00344A 420 00345A

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November 13, 2026
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This video demonstrates the setup, operation, and key moments during typical use of the Doosan DH155 V Joystick Control Valve 420-00344A and 420-00345A. Watch a step-by-step walkthrough of the remote control valve installation on SOLAR 140LC-V and 155LC-V excavators, including a close-up look at the internal components, proportional control response, and safety interlock function. Ideal for B2B buyers evaluating OEM-quality joystick valve parts for maintenance or replacement.