23
WIRE FEEDER
Position Check points Remarks
Pressure
arm
Appropriate positioning of the pressure
arm
Poor wire guidance and unstable
arc
Wire lead
tube
Accumulation of dirt or residue in the
mouth of the tube
Clean the residue, find the source
of the problem and solve it
Wire diameter matches the tube’s inner
diameter
If unmatched, may cause residue
buildup or unstable arc
Tube diameter matches the wire wheel
slot center. (Eyeballing)
If unmatched, may cause residue
buildup or unstable arc
Wire wheel
Wire diameter matches the wheel’s
requirement
If the wheel slot is blocked
1.May cause residue buildup,
unstable arc and block wire tube
2.Change for a new one, if
necessary
Pressure
wheel
Check the stability of its move, and
wearing-out of pressed wire, the
narrowing of its contact surface
Poor wire guidance and unstable
arc
CABLE
Position Check points Remarks
Torch cable
1. If torch cable is twisted
2. Loosening of metal connection point of
the mobile plug
1. Poor wire guidance
2. Unstable arc if cable is twisted
Output cable
1. Wear of the cable insulating material
2. Cable stripped (insulation damage), or
loosened (the end of power supply, and
cable of main material connection
point)
Follow the appropriate safety
measures and welding methods to
perform these verifications
depending on the workplace.
Daily routine checks
In-depth checks on fixed
periods
Input cable
1. If the connection between the plug and
the power socket is firm
2. If the power input end cable fixed
3. If the input cable is worn out and bares
the conductor
Earth cable
State of the earth cable and its
connections
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