Magmate MMA 160 Operating Manual - 5.0 Operating Functions
13
1
2
4
3
5
1
Power indicator light
Overtemperature indicator
2
LED Display
3
MMA / Lift TIG indicator
4
Welding current adjustment
5
Process selector switch MMA/Lift TIG
For MMA welding
Connect the electrode holder to the positive
(+)outputterminal
7
and the work return
lead should be connected to the negative (-)
output terminal
6
.
The welding current can be adjusted with the
welding current adjustment knob
4
.
5.1 Operating Machine
Manual Metal Arc welding (MMA)
■
Select the current as per the
recommendations of the consumable
manufacturer.
■
Select the polarity of the electrode cable as
pertherecommendations(+/-)
■
Select the process selector switch to MMA
DC TIG welding (Lift TIG)
■
Select the current as per the
recommendations of the consumable
manufacturer.
■
Connect the TIG torch to the negative (-)
pole of the welding machine.
■
Select the process selector switch to
'Lift TIG'
■
When Lift TIG is selected the tungsten
electrode can be touched onto the
workpiece. The arc will be initiated as the
electrode is moved upwards and the current
will revert to the adjusted current.
Connecting the shielding gas.
Fit the supplied shielding gas regulator to the
appropriate shielding gas cylinder ensuring
safety steps are followed as outlined on page 6
of this manual.
Open the cylinder and set the required gas
flow using the pressure adjustment knob on the
regulator.
NOTE:
When changing either the TIG torch or the MMA electrode
holder the machine should be switched off using the power switch
on the machine. In addition, the main supply must be turned off
and the plug removed from the outlet socket.
5.2 Earthing
For the welding process to be most effective
it is important to ensure that there is a solid
connection between the work return clamp and
the workpiece.
Always ensure that the return clamp is as close as
practically possible to the area to be welded.
Ensure that the workpiece is clean and free from
rust, scale paint or oil and grease before affixing
the work return clamp.
5.0 Operating Functions
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28/03/13 8:59 AM