Kemppi Minarc Mig Evo 200, Operating Manual, Page: 20 / 24

EN
5. Tighten the wire guide in place with the mounting nut.
6. Cut the wire guide 2 mm from the mounting nut and file the sharp edges of the cut round.
7. Reattach the gun in place and tighten the parts to spanner tightness.
3.3 TROUBLESHOOTING
Problem cause
The wire does not
move or wire feed
entangles Feed rolls, wire liner or contact tips are defective
• Check wire mechanism adjustment is not too tight or too loose
• Check that the feed roll groove is not too worn
• Check that the wire liner is not blocked
• Check that the contact tip and wire liner are suitable for the wire size used
• Check that spatter is not blocking the contact tip and that the hole is not closed or damaged
The main switch
indicator will not
light up • The machine has no supply voltage light
• No electricity connected to the machine
• Check the mains supply fuses
• Check the mains cable and plug
Poor welding results Several factors affect the welding quality
• Check that the wire feed is constant
• Check the trimming settings of welding power control and arc length
• Check the material selection setting
• Check that the earth return clamp is fixed properly, fixing point is clean, and both cable and its
connections are undamaged
• Check that the shielding gas is suitable for the wire material used
• Check the flow of shielding gas from the tip of the welding gun
• Supply voltage is uneven, too low or too high
Overheating indicator
is illuminated The machine has overheated
Normally, this indicates that the device has reached its maximum designed operating temperature.
The thermostat has become active, switching the welding power off. Allow the unit to cool and the
machine will soon automatically reset and allow welding to restart.
• Ensure that cooling air has unrestricted flow.
• If the machine’s duty cycle has been exceeded, wait for indicator to turn off.
In certain circumstances, this light may also indicate irregularity in the supply voltage.
Too low or high supply voltage.
If the machine’s malfunction is not eliminated with the above measures, contact Kemppi
service.
3.4 STORAGE
Store the unit in a clean and dry place. Shield it from rain, and in temperatures exceeding
+25 °C from direct exposure to sun.
18
M
inar
cM
ig E
vo 200 / © Kemppi O
y / 1110