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OPERATION
WARNING
ELECTRIC SHOCK
can kill
• Do not touch electrically live parts
or electrode with skin or wet
clothing.
• Insulate yourself from work and
ground.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
• Keep flammable material away.
• Wear eye, ear andbody
protection.
Safety Precautions
Initial Checkout of Magnum SG System Installation
If all of the following steps check okay, then your system is
correctly installed and operational.
1. Inspect all cables and connectors for missing or incorrect
connections.
In particular, ensure that ground lead is correctly attached
to chassis ground inside welder with terminal strip control
connections.
2. Open gas cylinder valve and adjust regulator.
3. Set power source to minimum tap or output setting.
4. Set power source mode switch for CV output, if applicable.
5. Remove idle roll pressure in spool gun by pushing release
lever up so that it will not feed wire.
6. Apply power to power source.
7. Pick up spool gun and squeeze spool gun trigger. Solenoid
valve in Control Module should energize. Gas should be
heard flowing from cone of spool gun. Drive roll in spool
gun should rotate clockwise.
8. Rotate wire speed control knob on Module from minimum
to maximum with trigger pressed and verify that drive roll
speed increases significantly.
9. For K847 spool gun only, rotate speed control in handle and
verify that speed varies between 0 and 100% of setting on
Control Module.
10. Release trigger. Gas flow should be heard to stop.
11. Set preflow time on Control Module to minimum and press
trigger. Drive roll should start rotating after approximately
1 second.
12. Turn preflow control on Control Module to minimum and
squeeze trigger. Drive roll should start rotating immediately.
Release trigger.
13. Verify that the output contactor in power source is opera-
tional with the spool gun by pressing the trigger. On some
machines the contactor will be audible; on others it may
be silent.
Observe that voltage is present (observed with power
sources equipped with a voltmeter).
FUMES AND
GASES can be
dangerous.
WELDING SPARKS
can cause fire or
explosion.
ARC RAYS
can burn.
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