Fimer King 320, Instruction Manual

Page: 58 / 148

26
INDICATION CAUSE/S
SOLUTION/ADVICE
Machine switches off
[display: off]
Lack of tension on the supply grid. Refresh the power supply
tension.
24. TROUBLESHOOTING
Below are a list of some of the most common problems that may arise, with the relati-
ve solutions.
Network error 1) Failure of one mains power supply phase
2) Mains overvoltage or undervoltage
1) Check the connection to the
power supply and check that the
fuses are intact
2) Check that the mains has a value
in the range from 360Vrms to
440Vrms.
MALFUNCTIONS DURING WELDING
[display:antisticking] MMA: electrode in contact with the mass Remove the electrode from the
workpiece
Failure to strike an arc 1) neither of the cables is
(pincer and earth clamps)
2) the cables are interrupted
3) bad contact between the earth
clamp and piece
4) bad contact between the pincer
and electrode
5) erroneous welding parameter settings
6) the welder does not produce current
1) check the connections
2) check the cables
3) check the connections
4) check the connections
5) check the parameters
6) check the welder
Porous welding seam Erroneous distance and/or inclination of
the torch
the distance between the electro-
de and the piece must be approxi-
mately equal to the diameter of the
electrode core; for basic electro-
des the rule is L=diam. X 0.5, the
inclination must not be excessive
Presence of hydrogen due to humidity in
the coatings of the electrodes, erroneous
conservation of electrodes
replace the electrodes,
keep the electrodes following the
manufacturer’s/supplier’s instructions
Welding arc is too long
keep the correct distance between
the electrode and the piece
No fusion
1) incorrect electrical parameters
2) welding speed to high
3) erroneous preparation of the patches
4) erroneous welding position
1) use the correct parameters,
reduce the speed
2) keep the correct welding
position
3) preparare the joint correctly
(open the angle of the caulker)
4) correct the welding position
Marginal incisions
1) electrical parameters too high
2) erroneous welding position
3) excessive welding speed 1) reduce the electrical parameters
2) correct the welding position
3) reduce the welding speed