8 EN
GENERAL MAINTENANCE
EN
Draughts in welding area.
Use a suitable screen. Increase gas delivery pressure if necessary.
Ciogged holes in diffuser.
Clear clogged holes using compressed air.
Gas leakage due to rupture in supply hos-
es.
Solenoid valve blocked.
Check and renew faulty component.
Check solenoid operation an electrical connection.
Porous or spongy welds.
Faulty pressure regulator.
Check operation by removing the hose connecting the pressure regulator
to the power source.
Poor quality gas or wire.
Gas must be extra-dry; change the cylinder or use a different type wire.
Gas supply does not switch off.
Worn or dirty solenoid valve.
Dismantle solenoid; clean hole and obturator.
Presslng torch trigger produces no
result.
Faulty torch trigger, disconnected or bro-
ken control cables.
Remove the torch connection plug and short-circuit the poles; if the ma-
chine operates properly, check the cables and the torch trigger.
Blown fuse.
Renew using a fuse of the same rating.
Faulty power switch.
Clean with compressed air. Ensure that wires are tightly secured; renew
switch if necessary.
Faulty electronic circuit.
Renew circuit.
TYPE OF BREAKDOWN
POSSIBLE CAUSES
CHECKS AND REMEDIES
