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Service, maintenance and disposal
General The power source only requires minimal care and maintenance under normal operating 
conditions. However, several points must be observed in order for the power source to re-
main operational for years to come.
Safety
WARNING!
An electric shock can be fatal.
Before opening the device
► Set power switch to - O - on the welding power supply
► Unplug the welding power supply from mains power
► Secure against anyone turning on power again
► Use a suitable measuring instrument to ensure that electrically charged components 
(e.g., capacitors) are discharged
WARNING!
Work performed incorrectly can cause serious injury and damage.
► The following activities must only be carried out by trained and qualified personnel.
► Please note the information in the "Safety instructions" chapter!
During Each 
Start-up
- Check mains plug and mains cable, as well as the welding torch, interconnecting 
hosepack, and ground earth connection for damage
- Check if the all-round clearance of the device is 0.5 m (1 ft. 8 in.) so that cooling air 
can circulate unimpeded
NOTE!
Air intake and exhaust openings must also not be blocked or even partially covered.
Every Two 
Months
Clean air filter:
2