Troubleshooting - Hitachi W130 Bedienungsanleitung

11.0 POSSIBLE WELDING DEFECTS
DEFECT
POROSITY
CRACKS
LIMITED
PENETRATION
HIGH SPRAYS
PROFILE DEFECTS
ARC INSTABILITY
ELECTRODE MELTS
OBLIQUELY
12.0 TROUBLE SHOOTING
INCONVENIENCE
SPARK WILL NOT
START
NO OUTPUT VOL-
TAGE
WRONG OUTPUT
CURRENT
CAUSES
Acid electrode on steel with high
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Electrode inclined in position
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Pass rate is not related to opera-
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CAUSE
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Overheated unit, yellow LED lit
Overvoltage protection interven-
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Overcurrent protection interven-
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Low primary power supply
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SUGGESTIONS
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Move edges to be welded closer
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Cleaning workpieces before
welding is an essential method of
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Make sure operating parameters
are regulated and improve prepa-
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Follow basic and general welding
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Check condition of electrode and
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Connect two earth wires to opposi-
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REMEDY
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Reset the unit by turning it off and
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esn't revert working contact after
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