There is a Da sound of the contactor closing when lifting button is pressed

  • Checking method:

    1. Whether if hydraulic motor cable is loose, repair the connection;

    2. Use a multimeter to check if lifting contactor is damaged. If yes, replace it

    3. If above causes are ruled out, then hydraulic motor is faulty, replace the hydraulic pump station

Step1: Check if hydraulic motor cable is loose

Check hydraulic motor cable

Step2: Check if lifting contactor is damaged:

Check the resistance of lifting contactor with multimeter

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