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 TO BE RUN INTO DURING WELDING
Fittings, welding materials, environment factor, supply powers maybe have something to do with
welding. User must try to improve welding environment.
A、Arc-striking issues
1. Make sure quality of tungsten electrode is high.
2. If the electrode is not dried, it will cause unstable arc, welding defect increases and the quality is
down.
3.
If use extra-long cable, the output voltage will decrease, so please shorten the cable
.
B、Output current not to rated value：
When power voltage departs from the rated value, it will make the output current not matched with
rated value; When voltage is lower than rated value, the max output may lower than rated value.
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、When use MMA welding,too much spatter
1.
Maybe current is too big and stick’s diameter is too small.
2.
Output terminal polarity connection is wrong, it should apply the opposite polarity at the normal
technics, which means that the stick should be connected with the negative polarity of power source,
and work piece should be connected with the positive polarity. So please change the polarity.
MAINTENANCE
1、
Remove dust by dry and clean compressed air regularly, if welding machine is operating in
environment where is polluted with smokes and pollution air, the machine need remove dust
everyday.
2
、
Pressure of compressed air must be inside the reasonable arrangement in order to prevent damaging to
small components of inter-machine.
3
、
Check inter circuit of welding machine regularly and make sure the cable circuit is connected
