Operation Manual
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
• Checkthemainssupplyfuses.
• Checkthemainscableandplug.
Poor welding result
Severalfactorsaecttheweldingquality.
• Checkthattheearthingclampisrmlyattached,thepointof
attachmentiscleanandthatthecableanditsconnectorsare
intact.
• Checkthattheshieldinggasowsoutofthetorchtip.
• Checkthattheelectricvoltageisnotirregularortoolow/high.
Overheating indicator lit
Thedevicehasoverheated.
• Ensurethatcoolingairhasunrestrictedow.
• Ifthemachine’sdutycyclehasbeenexceeded,waitforindicatorto
turno.
• Tooloworhighsupplyvoltage.
If the machine’s malfunction is not eliminated with these measures, contact
KEMPPI service.
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Minarc 150, 151 / © Kemppi Oy / 1117