Possible Causes - GYS HEAVYMIG 350-4 Manuel D'utilisation

HEAVYMIG 350-4 / 350 GR / 450 GR / 450 WS
TROUBLESHOOTING
SYMPTOMS
The welding wire speed is not
constant.
The wire-feeder motor doesn't ope-
rate.
Bad wire feed.
No welding current
The wire jams (after the rollers)
The welding bead is porous
The arc produces a lot of sparks
No gas flow at the end of the torch.

POSSIBLE CAUSES

Debris is blocking up the opening.
The wire skids in the rollers.
The rollers slide over the wire
Reel or roller brake too tight.
Electrical supply problem.
Covering wire guide dirty or da-
maged.
Reel brake too tight
Bad connection to the main supply.
Bad earth connection.
Torch trigger inoperative.
Guide wire sheath crushed.
Wire jammed in the torch
No capillary tube.
Wire speed too fast
The gas flow rate is not sufficient.
Gas bottle empty.
Gas quality unsatisfactory.
Air flow or wind influence.
Gas nozzle dirty.
Poor quality wire.
Work-piece in bad condition. (rust,
etc...)
Arc voltage too low or too high.
Bad earth connection.
Insufficient gas flow.
Bad gas connection.
REMEDIES
Clean out the contact tip or change
it and replace the anti-adherence
product.
Ref.041806
- Check the roller pressure or replace
it.
- Wire diameter incompatible with
roller
- Covering wire guide in the torch
incompatible.
Check and tighten the roller's screws.
Adjust the brake and rollers.
Check that the power switch is in the
"On" position.
Clean or replace
Adjust the brake
Check the mains connection and
ensure the supply is 400 V (3PH).
Check the earth cable (connection
and clamp condition).
Check the torch trigger / replace
torch
Check the sheath and torch body.
Clean or replace.
Check the presence of capillary tube.
Reduce the wire speed
Adjust flow range 15 to 25 L / min.
Clean the work-piece.
Replace
Replace
Prevent drafts, protect welding area.
Clean or replace the gas nozzle.
Use suitable WIRE for MIG-MAG
welding.
Clean the metal before welding.
See welding settings.
Check the earth cable (connection
and clamp condition)
Adjus the gas flow.
Check that the gas pipe is plugged
properly.
Check the solenoid valve.
EN
17