OPERATING MANUAL
Transmig 255i
Transmig 255i
ROUTINE SERVICE REQUIREMENTS AND POWER SOURCE PROBLEMS 8-4 Manual 0-5550
8.02 Cleaning the Welding Power Source
WARNING
There are extremely dangerous voltage and power levels present inside this Inverter Power Source. Do not attempt to
open or repair unless you are an accredited CIGWELD Service Provider. Disconnect the Welding Power Source from the
Mains Supply Voltage before disassembling.
To clean the Welding Power Source, open the enclosure and use a vacuum cleaner to remove any accumulated
dirt, metal filings, slag and loose material. Keep the shunt and lead screw surfaces clean as accumulated foreign
material may reduce the welders output welding current.
8.03 Cleaning the Feed Rolls
Clean the grooves in the drive rolls frequently. This can be done by using a small wire brush. Also wipe off, or
clean the grooves on the upper feed roll. After cleaning, tighten the feed roll retaining knobs.
!
CAUTION
Do not use compressed air to clean the Welding Power Source. Compressed air can force metal particles to lodge be-
tween live electrical parts and earthed metal parts within the Welding Power Source. This may result in arcing between
this parts and their eventual failure.
8.04 Power Source Problems
FAULT
CAUSE
REMEDY
1
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 MIG
weld.
A Power source is not in the
correct mode of operation.
A Set the power source to MIG
mode. Refer to Section 4.02.13.
B MIG Torch Polarity Lead is
not connected.
B Connect the MIG Torch Polarity
Lead to the positive or negative
output terminal. Refer to Section
4.02.7.
C Work Lead is not connected
to the work piece.
C Ensure that the Work Lead is
connected to the work piece and
has a good connection to the
work piece. Refer to Set Up for
MIG Section 5.09 or 5.10.
D MIG torch is not correctly
connected to the Euro Style
MIG Torch Adaptor.
D Ensure that the MIG torch is
correctly connected to the Euro
Style MIG Torch Adaptor. Refer
to Section 4.02.5 & 5.02.
2
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
STICK weld.
A Power source is not in the
correct mode of operation.
A Set the power source to STICK
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.