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11.8.
CHANGING FUSES
The fuses are located on the back panel of the main welding unit and are mainly blown for the following reasons:
Spatter collecting in the gas cup, causing contact tip to short circuit. Wire tension is too great. A sudden surge of current.
11.9.
INTERNAL MAINTENANCE / INSPECTION
INTERNAL INSPECTION AND MAINTENANCE OPERATIONS SHOULD BE CARRIED OUT ONLY BY SKILLED OR AUTHORISED
ELECTRICAL/MECHANICAL TECHNICIANS.
‰
WARNING BEFORE REMOVING THE WELDING MACHINE PANELS AND WORKING INSIDE THE MACHINE MAKE SURE THE
WELDING MACHINE IS SWITCHED OFF AND DISCONNECTED FROM THE MAIN POWER SUPPLY OUTLET.
If checks are made inside the welding machine while it is live, this may cause serious electric shock due to direct contact with live parts
and/or injury due to direct contact with moving parts.
- Inspect the welding machine regularly, with a frequency depending on use and the dustiness of the environment, and remove the dust
deposited on the transformer, reactance and rectifier using a jet of dry compressed air (max.10 bar).
- DO NOT direct the jet of compressed air on the electronic boards; these can be cleaned with a very soft brush or suitable solvents.
- At the same time make sure the electrical connections are tight and check the wiring for damage to the insulation.
- At the end of these operations re-assemble the panels of the welding machine and screw the fastening screws right down.
- Never carry out welding operations while the welding machine is open.
© Jack Sealey Limited
Original Language Version
SUPERMIG255.V2
Issue:1 - 11/07/22
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