1, if discover when using ac contactor and false, that power grid voltage is too low, the user should first solve the problem of power supply, power supply is normal rear can use.
It should be pointed out that, newly purchased welder if main parts quality problem within half a month, can replace the new welding machine or change the main parts。 Welding machine main machine warranty for one year, long-term to provide maintenance services。
2, usually after the user to inform the manufacturer, according to the service in place far three to seven days. Due to the user caused by the welding machine damage is beyond the scope of the warranty. Wearing parts and consumable parts is beyond the scope of the warranty.
3, spot welding machine before use should be water before welding, it is forbidden to work without water. Cooling water should guarantee at 0.15-0.2 MPa water pressure 5-30 ℃ of industrial water supply.
4, winter spot welding work after the application of compressed air to the water in the pipe blowing off to avoid frost crack pipes.
Began to use after 24 hours, all parts shall be screw fastening once, especially pay attention to the connection between soft and copper electrode screws must be tightened well, after use should be often remove oxide electrode bar and electrode arm, to ensure good contact.