Version Number: ARC145-20210106A1
9
Part 7:Trouble Shooting
PROBLEMS(SYMPTOMS)
POSSIBLE CAUSE
PROBLEMS IN STICK WELDING
Excessive spatter
1. Long arc.
2. High current.
Craters
1. Fast movement of the electrode away from piece.
Inclusions
1. Poor cleanliness or distribution of the Welding passes.
2. Improper movement of the electrode.
Insufficient penetration
1. High progression speed.
2. Welding current too low.
3. Narrow chamfering.
Sticking
1. Arc too short.
2. Current too low.
Porosity
1. Humidity in electrode.
2. Long arc.
Cracks
1. Current too high.
2. Dirty materials.
3. Hydrogen in weld (present on electrode coating).
ELECTRICAL FAILURES
Machine fails to come on
(Power LED off)
1. No Input Voltage.
2. Faulty supply plug or cable.
3. Internal fuse tripped. Allow time to Auto reset.
Thermal overload (Thermal LED on)
1. Unit has been operated beyond its capacity rating.
2. Airflow through machine is restrict- ed or fan has failed.
Part 8: Welding parameter settings
Welding thickness（㎜）
2
3
4-5
Electrode diameter（ф㎜）
2
3.2
3.2-4
Welding current（A）
40-65
50-80
100-130
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