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5.0 ELECTRODES WELDING - (6013/7018/CRNI) - MMA
5.2 GETTING READY FOR MMA WELDING
•
Connect the earth cable connector to the negative socket (8) of the unit (check for correct polarity
for the electrode you are going to use, refer to the information on its box).
•
Connect the working cable connector to the positive socket (7) of the unit (check for correct polarity
for the electrode you are going to use, refer to the information on the electrodes' box).
•
Select Stick function thru the Selector Switch (4) on the front panel.
•
Switch the unit on thru the ON/OFF switch (11).
•
Set welding current thru the potentiometer on the front panel (5) by following the indications on the
front panel.
•
The here below table gives some suggestions of the type of electrode for the different welding cur-
rent settings.
CURRENT RANGE
40 ÷ 70A
55 ÷ 90A
90 ÷ 135A
6.0 MIG/MAG WELDING
6.1.CONNECTION AND SET UP
6.1.1 WIRE LOADING
Ensure the gas and electrical supplies are disconnected. Before proceeding, remove
the nozzle and the contact tip from the torch.
•
Open the side panel.
•
Loosen the nut (I) of the spool holder (brakedrum) and
remove the spring (R) and the external ring (3). (Fig.4)
•
Remove the plastic protection from the spool (4) and
place it on the spool holder.
•
Mount the external ring (3), the spring (2) and the plastic
lock nut (1) again. These parts form the braking system
of the wire spool speed. NOTE: Do not tighten the nut
too much, excessive pressure strains the wire feeding
motor, while too little pressure does not allow the imme-
diate stop of the wire spool at the end of the welding.
•
Loosen and lower the plastic knob (A) (Fig.5). Open the
pressure arm (B) of the feeder. Extract the wire from the
torch liner.
•
When the wire is disconnected, grasp it with pliers so
that it cannot exit from the spool. If necessary, straighten
it before inserting it in the wire input guide (C). Insert the
wire on the lower roll (D) and in the torch liner.
WARNING: keep the torch straight. When feeding
a new wire through the liner, make sure the wire
is cut cleanly (no burrs or angles) and that at least
2 cm from the end is straight (no curves). Failure
to follow these instructions could cause damage to
the liner.
•
Lower the pressure arm (B) and place the knob (A).
Tighten slightly. If tightened too much, the wire gets
locked and could cause motor damage. If not tighten
enough, the rolls will not feed the wire.
WARNING: When changing the wire diameter being used, or replacing the wire feed
roll, be sure that the correct groove for the wire diameter selected is inside, closest to
the machine. The wire is driven by the inside groove. Feed rolls are marked on the side
identifying the groove nearest that side.
ELECTRODE DIAMETER
2.0mm
2.5mm
3.2mm
1 2
EN-6
4
3
A
B
C
E
D
Figure 4
Figure 5
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