Maintenance - Kemppi MasterTig 325DC Operating Manual

4. MAINTENANCE

When considering and planning routine maintenance, consider the operating frequency of the welding system and the
working environment.
Correct operation of the welding machine and regular maintenance helps you avoid unnecessary downtime and equip-
ment failure.
Disconnect the power source from the mains before handling electrical cables.
If the welding equipment is left unused for a longer period, disconnect the mains plug from the mains.
Do not use the mains plug as a power ON/OFF switch.
Always check before use that interconnecting cable, shielding gas hose, earth return cable/clamp and mains cable
are in serviceable condition. Ensure that the connectors are correctly fastened. Loose connectors can impair welding
performance and damage connectors.
Daily maintenance
Maintenance of power source
Follow these maintenance procedures to maintain the proper functioning of the welding system:
• Check that all covers and components are intact.
• Check all the cables and connectors. Do not use them if they are damaged.
For repairs, contact Kemppi at www.kemppi.com or your dealer.
Periodic maintenance
Only an authorized electrician is allowed to carry out electrical work.
Only qualified service personnel is allowed to carry out periodic maintenance.
Before removing the cover plate, disconnect the power source from the mains and wait for about 2 minutes before
discharging the capacitor.
Check the electric connectors of the unit at least every six months. Clean oxidized parts and tighten loose connectors.
Use the correct tension torque when fastening loose parts.
Clean the outside parts of the unit from dust and dirt, for example, with a soft brush and vacuum cleaner. Also clean the
ventilation grill at the back of the unit. Do not use compressed air, there is a risk that the dirt will compact even more
tightly into gaps of cooling profiles.
Do not use pressure washing devices.
Service workshops
Kemppi Service Workshops complete the welding system maintenance according to the Kemppi service agreement.
The main aspects in the service workshop maintenance procedure are:
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MasterTig 235ACDC, 325DC, 335ACDC, 425DC
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Operating manual - EN
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