Generator Maintenance - Cebora EVO SYNERGIC Manual De Instrucciones

6 WELDING DEFECTS
1 DEFECT- Porosity (within or outside the bead)
CAUSES • Electrode defective (rusted surface)
• Missing shielding gas due to:
- low gas flow
- flow gauge defective
- regulator frosted due to no preheating of
the CO2 protection gas
- defective solenoid valve
- contact tip clogged with spatter
- gas outlet holes clogged
- air drafts in welding area.
2 DEFECT - Shrinkage cracks
CAUSES • Wire or workpiece dirty or rusted.
• Bead too small.
• Bead too concave.
• Bead too deeply penetrated.
3 DEFECT - Side cuts
CAUSES • Welding pass done too quickly
• Low current and high arc voltages.
4 DEFECT - Excessive spraying
• Voltage too high.
CAUSES
• Insufficient inductance.
• No preheating of the CO2 protection gas.
7 MAINTENANCE
Any maintenance operation must be carried out by
qualified personnel in compliance with standard CEI 26-
29 (IEC 60974-4).

7.1 GENERATOR MAINTENANCE

In the case of maintenance inside the machine, make sure
that the switch is in position "O" and that the power cord
is disconnected from the mains.
It is also necessary to periodically clean the interior of
the machine from the accumulated metal dust, using
compressed air.
7.2 PRECAUTIONS AFTER REPAIRS.
After making repairs, take care to organize the wiring so
that there is secure insulation between the primary and
secondary sides of the machine. Do not allow the wires
to come into contact with moving parts or those that heat
up during operation. Reassemble all clamps as they were
on the original machine, to prevent a connection from
occurring between the primary and secondary circuits
should a wire accidentally break or be disconnected.
Also mount the screws with geared washers as on the
original machine.
8 ACCESSORIES
Art. 1680 Cooling unit.
Art. 1652 Wire feeder with 2 rollers.
Art. 1662 Wire feeder with 4 rollers.
Art. 1182 Connection (5 m) between power source
and wire feeder.
Art. 1182.20 Connection (10 m) between power source
and wire feeder.
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