1. Before using the hydraulic butt fusion pipe welding machine, check whether the additional voltage of the winding matches the power supply voltage (380V or 220V), and check whether the wiring on the terminal board is correct. If it is a hydraulic butt fusion pipe welding machine that has been put into operation for the first time or is out of service for a long time, a 500V megohmmeter should be used to measure the insulation resistance of each winding to the core and each other before use, and it should not be less than 0.5MΩ.
2. The nuts, copper lugs and wires on the primary and secondary side wiring boards of hydraulic butt fusion pipe welding machine must be touched tightly and securely. If the touch is not good enough, the bolts, nuts and lugs will burn rings. Therefore, after the welding machine has been working for a certain period of time, the oxide layer on each touch surface should be wiped off with a fine emery cloth, and then the bolts should be tightened.
3. The hydraulic butt fusion pipe welding machine should prevent long-term short-circuit between the welding rod and the welding parts to prevent the welding machine from being burned.
4. The working site of hydraulic butt fusion pipe welding machine should be dry and well ventilated. When moving the welding machine, the power supply should be blocked, and the welding machine should not be moved by delaying the cable. If the power is suddenly cut off during welding, the power supply should be blocked.
5. If multiple hydraulic butt fusion pipe welding machines are required to work together, the welding machines should be evenly tapped on the three-phase power to balance the three-phase load.
6. The shell of the hydraulic butt fusion pipe welding machine must be grounded, and a separate wire is used to connect it with the grounding trunk. When multiple welding machines are connected to a grounding device, parallel connection should be used to prevent series connection. When the welding operation is not completed, the grounding wire cannot be removed at will.
7. The hydraulic butt fusion pipe welding machine cannot be operated under high humidity (relative humidity exceeding 90%), high temperature (above 40℃), and no ventilation. Keep away from flammable and explosive materials. The welding machine should be placed steadily, avoid violent vibration and knocking, to prevent damage to the function of the reactor and make the welding machine unable to operate normally. The welding machine should be kept clean and dry, punctually use low-pressure dry compressed air for finishing operations.
8. If the hydraulic butt fusion pipe welding machine fails to arc, the winding is overheated, the welding current cannot be adjusted, the welding machine oscillates or the noise is too loud, stop it in time, find the cause, and carry out maintenance.
