ESAB CIGWELD 220i, Operating Manual, Page: 85 / 94

Manual 0-5439 8-5 ROUTINE SERVICE REQUIREMENTS AND POWER SOURCE PROBLEMS
Transmig 220i
OPERATING MANUAL
3 Mains Supply Voltage is
On, the On/Off switch on
the rear panel is in the On
position and the Power
indicator on the front panel
is illuminated however the
power source will not TIG
weld. A Power source is not in the
correct mode of operation. A Set the power source to LIFT TIG
mode. Refer to Section 4.02.13.
B Work Lead is not connected
to the work piece. B Ensure that the Work Lead is
connected to the work piece and
has a good connection to the
work piece.
C TIG Torch 8 Pin Control
Plug not connected correct-
ly or loose/faulty connec-
tion in plug. C Connect 8 Pin TIG Torch control
plug securely and correctly to
the 8 Pin control socket of the
front of the Transmig 175i+
Power Source.
Repair or replace if faulty.
D Faulty TIG Torch Trigger. D Repair or replace TIG Torch Trig-
ger switch/lead.
4 Over Temp Indicator is il-
luminated and unit will not
commence welding when
the torch trigger switch is
depressed. Duty cycle of power source
has been exceeded. Leave the power source
switched ON and allow it to cool.
Note that Over Temp indicator
must be extinguished prior to
commencement of welding.
5 Unit will not feed wire in
MIG mode. A Incorrect Feed Roll fitted for
wire type being used. A Fit the correct feed roll for MIG
wire type being used. Refer to
section 2.11 for optional feed
rolls available and Section 5.07
for feed roll fitting details.
B Pressure Roller Arm is
not secured in the down
position or not correctly
adjusted. B Secure Pressure Roller in the
down position and ensure that
it is correctly adjusted. Refer to
Section 5.05 and 5.06.
C Electrode wire stuck in
conduit liner or contact tip
(burn-back jam). C Check for clogged / kinked MIG
torch conduit liner or worn
contact tip. Replace faulty com-
ponents.
D Internal fault in power
source D Have an Accredited CIGWELD
Service Provider investigate the
fault.
6 Welding wire continues to
feed when torch trigger is
released. A Trigger mode selection
switch is in 4T latch mode. A Change the trigger mode selec-
tion switch from 4T latch mode
to 2T normal mode.
B Torch trigger leads shorted. B Repair or replace torch trigger
switch/lead.
7 Welding arc cannot be
established in MIG mode. A MIG torch polarity lead is
not connected into a weld-
ing output terminal. A Connect the MIG torch polar-
ity lead to either the positive
welding output terminal or the
negative welding output terminal
as required.
B Poor or no work lead
contact. B Clean work clamp area and en-
sure good electrical contact.