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DO NOT ATTACH THE REGULATOR/FLOWMETER IF
CYLINDER VALVE IS DAMAGED! Inform your gas supplier of this
condition.
3.
Stand to one side away from the outlet and open the cylinder
valve for an instant. This blows away any dust or dirt which
may have accumulated in the valve outlet.
WARNING
Be sure to keep your face away from the valve outlet
when "cracking" the valve.
4.
Inspect the regulator/flowmeter for damaged threads and
seals, dirt and dust. Remove dust and dirt with a clean cloth.
DO NOT USE THE REGULATOR/FLOWMETER IF DAMAGE
IS PRESENT! Have an authorised repair station repair any
damage.
WARNING
Gas under pressure is explosive. Always keep gas
cylinders in an upright position and always keep chained
to undercarriage or stationary support. Refer "Safety in
Welding and Cutting" - ANSI Standard Z49-1 and WTIA
Technical Note 7 available from the Welding Technology
Institute of Australia.
5.
Attach the regulator/flowmeter to the cylinder valve and
tighten the union nut(s) securely with a spanner.
6.
Attach the inlet gas hose to the outlet fitting of the
regulator/flowmeter, and tighten the union nut securely with a
spanner.
WARNING
Never stand directly in front of or behind the
regulator/flowmeter when opening the cylinder valve.
Always stand to one side.
7.
Before opening the cylinder valve, turn the regulator adjusting
knob counter-clockwise until the adjusting spring pressure is
released.
8.
Open the cylinder valve slowly a fraction of a turn. When the
cylinder pressure gauge pointer stops moving, open the valve
fully.
9.
The regulator/flowmeter is adjustable. Set it for the flow rate
recommended for the procedure and process being used
before starting to weld.
Gun and Cable
The Magnum FM400 gun and cable provided with the machine is
set up for 0.9/1.2mm operation.
1.
Lay the cable out straight.
WARNING
Turn the welder power switch off before installing gun
and cable.
2.
Make sure all pins on the gun cable connector are aligned
with the proper mating sockets on the front panel gun
connector and then join the connectors and tighten the hand
nut on the gun cable connector.
IMA 574B
NOTE: If a gun and cable other than the Magnum FM400 gun are
to be used, they must conform to standard European-style
connector specifications. See diagram under.
The gun trigger switch must be capable of switching 10 milliamps
at 60 volts DC—resistive.
The gun trigger switch connected to the gun trigger
control cable must be a normally open, momentary
switch. The terminals of the switch must be insulated
from the welding circuit. Improper operation of, or
damage to, the machine might result if this switch is
common to an electrical circuit other than the machine
trigger circuit.
Output Polarity Connection
Turn the welder power switch off before changing output
connection.
Connect the lead from the wire feeder to the output stud of the
desired polarity.
Connect the work lead to the other output stud.
CV320-I
CAUTION
WARNING
Page 7
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