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EARLIER CHECKING DIAGRAM FOR THE ABNORMAL
When abnormal situation such as failure of welding, unstable arc, poor welding result, do not consider that it
must be some faults.
The machine may be well but just some reasons cause abnormality such as that some connectors are loosened,
forget to turn on the switch, wrong setting, broken cable and gas pipe, etc. So, before maintenance, please
check it up first, some problem may be solved.
The following is earlier checking diagram by this way. In the top right corner item, you can find the problem,
please check according to the diagram for the one with "O" mark.
Place and item to be checked
Power supply（input
protective set ）
Input cable
Power
Gas cylinder & adjuster
Gas pipe (access from the
high-pressure cylinder to
torch)
Wire sending equipment
EARLIER CHECKING DIAGRAM FOR THE ABNORMAL
The abnormal
1. Connected or not
2. Fuse broken
3. Connector loosen
1. Broken or not
2. Connector loose
3. Overheat
1. Switched or not
2. Lack phase
1. Open cover
2. Remains of gas
3. Flow setting volume
4. Connecting point loosen
1. Connecting point loosen
2. Pipe broken
1. Wheel and leading tube not
match
2. Wheel broken, slot blocked or
lack
3. Over pressing or loosen,
powder store up in entrance
of SUS tube
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