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4）There is a grounding screw behind welding machine, there is grounding marker
on it Mantle must be grounded reliable with cable which section is over 6
square millimeter I order to prevent from static electricity and leaking.
5）If welding time is exceeded duty cycle limited, welding machine will stop working
for protection. Because machine is overheated, temperature control switch is on
“ON’’ position and the indicator light is red. In this situation, you don’t have to
pull the plug, in order to let the fan cool the machine. When the indicator light is
off, and the temperature goes down to the standard range, it can weld again.
QUESTIONS IS BE RUN INTO IN WELDING
Fittings, welding materials, environment factor, supply powers maybe have
something to do with welding. User must try to improve welding environment.
A、Arcing-striking is difficult and easy to pause：
1) Make sure the earth cable clincher connects the work piece well.
2) Check each connecting point connected or not.
B、Output current can’t reach rated volume：
That supplied voltage is different from the rated will lead to unconformity of the
output current and the adjusted current. When Supplied voltage lower than the
rated, the max output current will be lower than the rated.
C、Current is not stabilizing when machine is been operating.
It has something with factors as following:
1) Electric wire net voltage has been changed；
2) There is harmful interference from electric wire net or other equipment。
D Welding gap has air hole.
1) Check the gas supply loop leaks or not.
2) Surface of mother material has oil, stain, rust, lacquer or other impurity.
MAINTENANCE
