Panasonic YD-500KR, Operating Instructions Manual

Page: 37 / 51

35
INITIAL TROUBLE DIAGNOSIS
Error
Block and check item
Wire feeder

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
○ ○ ○ ○ ○
Welding torch and
torch cable
 Overlapped winding of the torch
cable, bending at an acute angle
 Wire diameter adaptability, wear,
clogging, and deformation of the chip
and conduit tube
○ ○ ○ ○
Torch body and
surroundings

Slackness of the chip, nozzle, and
insulated cylinder

Insertion/clamping of the torch body
to the connector
○ ○
Welding torch power
cable
and torch
switch contro1 cable
 Snapping of the cable (bending
fatigue)
 Trace of a drop of a heavy substance
○ ○ ○ ○ ○
Surface condition of
the base metal and
wire
projection
length (Distance
between the chip and
base metal)

Oil, contamination, rust, painting
film

Too much wire projection
○ ○ ○ ○ ○
Output cable
 Insufficient sectional of area of
cable
 Loose connection of the "+" or "-"
output cable
 Improper power source to the base
metal
○ ○ ○
Extension cable

Insufficient sectional area of the
cable
 Overlapped winding of the cable in
use
○ ○ ○ ○
Welding conditions

Reconfirmation or the welding
current and voltage, torch angle,
welding speed, wire projection length,
etc.
○ ○ ○ ○ ○
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