INITIAL TROUBLE DIAGNOSIS
Block and check item
Wire feeder
Welding
torch
and
torch cable
Torch
body
and
surroundings
Welding torch power
cable
and
torch
switch contro1 cable
Surface condition of
the base metal and
wire
projection
length
(Distance
between the chip and
base metal)
Output cable
Extension cable
Welding conditions
Adaptability of the feed
Roller and SUS tube wire
Diameter
Crack, choked groove, or tipping of
the feed roller
Excessive/insufficient clamping of
the pressure rod
Accumulation of wire powder around
the SUS tube inlet
Overlapped winding of the torch
cable, bending at an acute angle
Wire diameter adaptability, wear,
clogging, and deformation of the chip
and conduit tube
Slackness of the chip, nozzle, and
insulated cylinder
Insertion/clamping of the torch body
to the connector
Snapping of the cable (bending
fatigue)
Trace of a drop of a heavy substance
Oil, contamination, rust, painting
film
Too much wire projection
Insufficient sectional of area of
cable
Loose connection of the "+" or "-"
output cable
Improper power source to the base
metal
Insufficient sectional area of the
cable
Overlapped winding of the cable in
use
Reconfirmation
current and voltage, torch angle,
welding speed, wire projection length,
etc.
Error
or
the
welding
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FOR YOUR INFORMATION
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