3. Set up installation for MMA Welding
Connection of Output Cables Two sockets are
available on this welding machine. For MMA
welding the electrode holder is shown be
connected to the positive socket, while the
earth lead (work piece) is connected to the
negative socket, this is known as DCEP.
However various electrodes require a
different polarity for optimum results and
careful attention should be paid to the
polarity, refer to the electrode manufacturers
information for the correct polarity.
DCEP: Electrode connected to “+” output
socket.
DCEN: Electrode connected to
“-” output
socket.
Switch the ON/OFF Switch (located on the
rear panel) to OFF.
(1) connect the earth lead to “-”, tighten
clockwise.
(2)Connect the earth clamp to the work
piece. Contact with the work piece must be
firm contact with clean, bare metal, with no
corrosion, paint or scale at the contact point.
(3)Connect the electrode lead to
“ + ” ,
tighten clockwise.
(4) Each machine is equipped with a power
cable should be based on the input
voltage welding power cable connected
to the appropriate position, not to pick
the wrong voltage.
(5) With the corresponding input power
supply terminal or socket good
contact and prevent oxidation.
(6) With a multi meter measure the input
voltage is within the fluctuation range.
(7) The power ground is well grounded.
29
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