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11.1 Power supply:
Part
Check
Remarks
Control panel
Switch on the power and check if the
power indicator is on.
Fan
Check if the fan is functioning and the
sound generated is normal.
If the fan doesn’t work or the sound is
abnormal, do inner check.
Power supply
Switch on the power supply, and check if
abnormal vibration, heating of the case of
this equipment, variation of colors of case
or buzz presents.
Other parts
Check if gas connection is available, case
and other joints are in good connection.
11.2 Welding torch MIG:
Part
Check
Remarks
Nozzle
Check if the nozzle is fixed firmly and
distortion of the tip exists.
Possible gas leakage occurs due to the unfixed
nozzle.
Check if there is spatter sticking on
the nozzle.
Spatter possibly leads to the damage of torch.
Use anti-spatter to eliminate the spatter.
Contact tip
Check if the contact tip is fixed
firmly.
Unfixed contract tip possibly leads to unstable
arc.
Check if the contact tip is physically
complete.
The physically incomplete contact tip possibly
leads to unstable arc and arc automatically
terminating.
Wire
feeding
hose
Make sure that there is the
agreement of wire and wire feed
tube.
Disagreement of the diameters of wire and wire
feed tube possibly leads to the unstable arc.
Replace it/them if necessary.
Make sure that there is no bending
or elongation of wire feed tube.
Bending and elongation of wire feed tube
possibly leads to the unstable wire feed and arc.
Replace it if necessary.
Make sure that there is no dust or
spatter accumulated inside the wire
feed tube, which makes the wire
feed tub blocked.
If there is dust or spatter, remove it.
Check if the wire feed tube and O-
shaped seal ring are physically
complete.
The Physically incomplete wire feed tube or O-
shaped seal ring possibly leads to the excessive
spatter. Replace the wire feed tube or O-shaped
seal ring if necessary.
Diffuser
Make sure that the diffuser of
required specification is installed
and is unblocked.
Defection weld or even the damage of torch
occurs due to the non-installation of diffuser or
the unqualified diffuser.
EN
