Quarterly Maintenance; Semi-Annually Maintenance; Non-Periodic Maintenance; Possible Problems And Errors - NURIS MIG 550 RWS Operational Manual


Check whether the welding cables and torch terminals are tight and
suitable. Tighten if loose.

Daily maintenance should be done by the person who will perform the
welding process.

5.1.2. QUARTERLY MAINTENANCE


Crushed, frayed or broken cables or cords should be maintained and replaced with
new ones if necessary.

5.1.3. SEMI-ANNUALLY MAINTENANCE


Electrical power supply connectors must be checked and tightened if loose.

Side caps should be opened and all energy connections here should be tightened.

All accessible bolts and nuts should be checked and loose ones should be tightened
in the body and other parts of the machine.

Dust accumulated in the machine should be cleaned with compressed dry air. If the
machine is used in very dirty environments, this process should be done in periods
shorter than six months.

5.2. NON-PERIODIC MAINTENANCE


Special care should be given for welding chassis cable and torch connections. These
connections carry high currents and should be kept clean for any risk of high
temperature rise.

The consumables on the torch should be cleaned regularly and replaced if
necessary.

For a good welding quality, if the welding wire is rusted or corroded, it should be
replaced with a new one.

If the labels on the device are dirty and difficult to read, clean them.
5.3. POSSIBLE PROBLEMS AN D ERRORS
Before troubleshooting, please check all power connections. The mains connection is a
three-phase system. Always check the rated voltage level for each phase. The welding
power supply may reduce performance in case of single-phase loss.
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08/2022 Rev. 1.3