－
E19
－
8. MAINTENANCE AND TROUBLESHOOTING
8.1 Maintenance
WARNING
●
Do not touch the charged sections; otherwise, you might receive serious electric
shock or get burned.
●
Turn off all of the line disconnect switches before touching the parts inside the
welding machine.
No.
Problem
Cause
Solution
1
Wire gets deformed.
Wire pressure is too strong.
Refer
to
“Recommended
wire
pressure adjustment” in Section 7.2.
Wrong feed roll is used.
Replace it with the feed roll of proper
wire size.
Feed roll and pressure roll are
worn.
Replace the feed roll and the
pressure roll.
2
Wire is not fed.
Poor contact or breakdown in
the control cable.
Check the connection of the socket.
Check the cables and replace them if
necessary.
Poor contact or breakdown in
the encoder cable
Trouble with the motor
Replace the motor.
Wire pressure is too weak.
Refer
to
“Recommended
wire
pressure adjustment” in Section 7.2.
Dust and chip are accumulated
on the outlet guide and on the
feed roll.
Remove the dust and chip.
3
Pressure roll does not
rotate smoothly.
Failure of the pressure roll
holder.
Replace it if necessary.
4
Shield gas is not
supplied when pressing
the torch switch.
The discharge valve of the gas
cylinder is closed.
Open the valve.
Lack of gas pressure in the
gas cylinder
Check gas pressure.
Failure of gas solenoid valve
After checking the gas solenoid
valve, replace it if necessary.
5
Shield gas supply does
not stop.
Failure of gas solenoid valve
After checking the gas solenoid
valve, replace it if necessary.
6
Defective gas hoses
Crack in the gas hose
Replace them if necessary.
7
Wire is not fed
smoothly from the
wire reel.
Adjustment of the brake is
either too strong or too weak.
Refer to “Adjustment of the wire reel
hub” in Section 7.4.
