THE ART OF WELDING
P6 HW
72-100 PN-0110008 Rev. 12
Problem (Consequence) Possible causes What to do
Gas
(Immediate stop)
Gas bottle empty or valve closed. Check, replace or open.
Quick coupling of the welding head
badly connected.
Check.
Solenoid valve defect.
Must be checked and, if necessary,
replaced by a qualifi ed electrician.
Cooling unit
(Imposed downslope)
Coolant level too low. Check and correct.
Coolant circuit fouled.
Check, empty and clean the circuit,
clean the water fi lter. Fill up with
fresh coolant.
Shunt of the cooling circuit not connect-
ed (air cooled closed chamber welding
heads).
Check and correct (§ 4.3.3).
Quick couplings of the welding head
badly connected.
Check and correct.
Fuse defect. Check and change (§ 6.2.1).
Polygaine defect (MU welding heads). Replace.
Ignition
(Immediate stop)
Weld current cable badly connected
or cut.
Correct or replace.
Earth connection not clamped at a
clean zone.
Move earth connection (§ 4.3.2 or
4.3.6).
Electrode contaminated or too far
from workpiece.
Consult operation manual of the
welding head for electrode chang-
ing.
Polygaine defect (MU welding heads). Replace.
Ignition device not fi tted or badly po-
sitioned (welding heads MU, TP, TS
…).
Change position.
Gas not suitable, gas fl ow rate not
adapted.
Try with argon.
Power source badly adjusted.
Contact Polysoude After Sales
Service.
Current source defect.
Contact Polysoude After Sales
Service.
Arc loss
(Immediate stop)
Electrode tip damaged or wrongly
prepared.
Consult operation manual of the
welding head for electrode chang-
ing.
Wrong distance electrode/workpiece. Correct.
Poor gas protection.
Check fl ow rate, gas diffuser, clean,
correct.
Weld current programmed too low. Correct.
Ignition device too close to the torch
(heads MU, TP, TS …).
Correct the position.
To Next Page
Loading...
