Kemppi Minarc 120 AU - Manual (Page 13)

EN
4. MaintenanCe
NOTE! Be careful when handling electrical cables!
In maintaining the unit, take into consideration the rate of use and the
environment it is used in. When the unit is used properly and serviced
regularly, you will avoid unnecessary disturbances in use and production.
4.1 daily MaintenanCe
Perform the following maintenance daily:
• Clean electrode holder and TIG torch’s gas nozzle. Replace damaged or
worn parts.
• Check TIG torch’s electrode. Replace or sharpen, if necessary.
• Check tightness of welding and earth cables connections.
• Check condition of mains and welding cables and replace damaged
cables.
• See that there is enough space in front of and back of the unit for
ventilation.
4.2 trOuBleshOOting
Problem Cause
The main switch indicator will not
light up
No electricity connected to the machine
• Check the mains supply fuses.
• Check the mains cable and plug.
Poor welding result Several factors affect the welding quality.
• Check that the earthing clamp is firmly attached, the point of
attachment is clean and that the cable and its connectors are
intact.
• Check that the shielding gas flows out of the torch tip.
• Check that the electric voltage is not irregular or too low/high.
Overheating indicator lit The device has overheated.
• Ensure that cooling air has unrestricted flow.
• If the machine’s duty cycle has been exceeded, wait for indicator to
turn off.
• Too low or high supply voltage.
If the machine’s malfunction is not eliminated with these measures, contact
KEMPPI service.
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