OPERATOR’S MANUAL · MIG/MAG PULSE SERIES
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Welding current is
unstable.
The pressure arm on the wire feeder
is not properly adjusted.
Adjust it properly.
The drive roll do not match the
welding wire being used.
Use matching drive roll and welding
wire.
The contact tip of the welding torch
is badly worn.
Replace the contact tip.
The guide tube in the torch is badly
worn.
Replace the guide tube.
The welding wire is of bad quality.
Replace it with welding wire of good
quality.
The gas regulator cannot
be heated.
The plug of the heater is well
connected.
Connect it well.
The heater wire is shorted. Repair the heater wire.
The resettable fuse inside the
machine functions.
Shut down the machine, and restart
it.
The heater inside the gas regulator
is damaged.
Replace it.
9. WIRING DIAGRAM OF THE MACHINE
9.1 Wiring diagram of the machine (see APPENDIX)
10. ABOUT THIS MANUAL
This manual is applicable to MIG350P(N316) and MIG400P(N317).
We are still constantly improving this welder, therefore, some parts of this welder may be changed
in order to achieve better quality, but the main functions and operations will not be alternated. Your
understanding would be greatly appreciated.
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