Control Switches / Maintenance - Migatronic RALLY MIG 160 Manuel D'instruction

CONTROL SWITCHES
3
4
1. On
Lights when the machine has been turned on.
2. Overheating
Lights if the welding process is automatically
stopped due to overheating of the transformer.
The light extinguishes when the transformer tem-
perature has dropped to normal, and welding can
continue.
3. Wire feed speed control
Infinitely variable (1.0 - 10 m/min).
4. Main switch and switch for welding voltage
5. Connection of welding hose
6. Fuse
1 A slow.
Insufficient maintenance may result in reduced
operational reliability and in lapse of guarantee.
Wire feed unit
5
This unit must be cleaned with dry, clean, compressed
air and maintained regularly at the wire feed roll and
the capillary tubes, as it is of great importance for a
satisfactory welding result and a minimum of wear and
tear that the wire passes through the wire drive system
without any deformations of the wire or the wire feed
roll. The contact tips must be checked often and
changed if the copper plating of the wire is damaged
on its way through the tips. Copper dust may prevent
free passage of wire through the torch liner. Check
and cleaning of the capillary tubes and the wire drive
1
rolls is recommended when necessary.
2
Welding hose
Great care should be taken to ensure that the
welding hose is not overloaded. It should not be
pulled over sharp edges, and heavy machines
6
should not run over it as this may damage the torch
liner.
The torch hose assembly should be dismantled when
necessary and blown out with clean, dry compressed
air. The torch must be disconnected from the
machine during this process.
Welding torch
There are many parts in the welding torch that have
to be cleaned regularly. The main ones are the
contact tips and the gas shroud.
During the welding process, these parts are bom-
barded with spatter that sticks to the shroud. This
may disturb the shielding gas flowing from the gas
shroud down to the molten pool, and must be
removed regularly. The use of MIGATRONIC MIG
SPRAY loosens spatter.
During the cleaning process, the gas shroud should
be removed. Do not clean by banging or hitting the
torch.
Power source
The rectifier and transformer should be blown out
with dry air occasionally, otherwise the air circulation
will be affected by the dust.
Important!
Make sure that the machine is disconnected from the
mains supply when the power source needs to be
opened for e.g. replacement of control unit.
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MAINTENANCE