12.OPERATION 12.7 SWINGING WARNING When operating the swing, check that the area around the ma- chine is safe. 1. Before operating the swing, turn swing lock switch OFF (CAN- CELLED). NOTICE Check that swing lock monitor goes out at the same time. 2. Operate left work equipment control lever to swing the upper structure. 3. When not operating the swing, turn swing lock switch ON (ACTU- ATED). PC130/150LGP-6K ENG 2-63