UltraMig 175
- 14 -
Maintenance
1. Maintenance
Periodically (at least every 6 months, depending upon
the extent to which the unit has been used) check:
- The cleanliness of the unit.
- The condition of electrical and gas hoses
connections.
WARNING: Never clean or work inside the unit
without first making sure that it is indeed
disconnected from the outlet.
Remove the transformer side panel and using a blower
with compressed air, remove all metal particles and
dust that has accumulated between the windings of
the transformer and on all the other internal parts.
While cleaning the interior, inspect for any damage to
the electrical connections of the power cord, the
control and power supply circuits, and the condition of
cable insulation, couplings and hoses.
WIRE DRIVE SYSTEM
On a regular basis, use dry compressed air to clean all
parts of the drive system.
ROLLERS AND WIRE GUIDE
Under normal conditions of use, the rollers and wire
guides should give a long period of service before any
replacement becomes necessary. After being
operated for a certain period of time, however, excess
wear or clogging due to metal deposits might appear.
Regular cleaning will help to minimize such effects
which detract from proper operation. The drive motor
itself does not require any maintenance or lubrication.
2. Installation
Regularly check that all connections for the supply of
current to the machine and the torch are tight such as:
- contact tip
- coaxial cable
- welding nozzle
Mechanical stresses due to thermal shock can tend to
unloosen certain parts, in particular those on the torch.
Remove any spatter accumulated between the contact
tip and the nozzle.Spatter can be removed more easily
when this is done often. Do not use any hard tool
which might scar the surfaces of these parts. Rough
surfaces make it easier for spatter to stick. Whenever
possible, use products designed to control the
adherence of spatter.
Blow dry compressed air through the cable liner after
each wire spool change. Carry out this procedure from
the motor side of the torch cable.
Contact tips are designed for prolonged use. They are
nevertheless worn by the passage of the wire and the
hole eventually becomes larger than the acceptable
tolerance for good contact between the tip and the
wire. The need for replacement becomes apparent
when the arc sputters even though all other
adjustment parameters appear to be correct.
3. Troubleshooting
In the event of any malfunction and before looking for
the cause,
TAKE EXTREME CARE TO:
- Disconnect the machine from the outlet.
- Check the electrical connections of the input power
circuit.
- Check the electrical connections of the control and
output power circuit (electronic circuit connectors,
fuse, etc.).
- Check the condition of cable insulation (heating or
burns can be signs of a fault).
- Check the condition of the lines and couplings of the
gas circuit.
- Check the electrical power supply (fuses or circuit
breakers).
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