Weldmatic 270
Model No CP132-2, Iss A 08/12
9
Fitting the gas cylinder
Place the gas cylinder on the tray at the rear
of the welder. Retain the cylinder with the
chain provided.
Fit the gas regulator to the cylinder. DO NOT
apply grease or oil to these joints.
Fit the end of the gas inlet hose from the
composite cable to the connector supplied
with the gas regulator, and secure with the
clamp also supplied.
Remote Wirefeeder
The remote wirefeeder is connected to
the Weldmatic 270 power source via the
composite cable interconnecting lead. Check
all connections are firmly made to ensure good
electrical contact, and to prevent gas leaks.
Output Voltage Polarity
The design of the Weldmatic 270 allows
selection of the output voltage polarity.
Positive Wire
G.M.A.W. with solid consumable wires is
carried out with the work piece Negative and
the welding wire Positive.
To setup for this condition, connect the
‘WORK’ lead plug into the (-) output socket
on the Power Source, and the ‘WELDING’
lead from the wirefeeder into the (+) socket
on the Power Source, as in Figure 2.
Fig 2
Positive Wire
To wirefeeder
To work clamp
Fig 3
Negative Wire
To wirefeeder
To work clamp
Negative Wire
Some ‘self-shielded’ flux cored consumable
wires are operated with the work piece
Positive and the consumable wire Negative.
Refer to the manufacturers data for the
particular consumable wire to be used.
To setup for this condition, connect the
‘WORK’ lead plug into the (+) output socket
on the Power Source, and the ‘WELDING’
lead from the wirefeeder into the (-) socket
on the Power Source, as in Figure 3.
Summary of Contents for Iss A
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