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A-8
INSTALLATION
AIR VANTAGE® 500 CUMMINS
A-8
CONNECTION OF AN NA-3 AUTOMATIC
WELDING SYSTEM TO THE AIR VAN-
TAGE® 500
For connection diagrams and instructions for connect-
ing an NA-3 Welding System to the AIR VANTAGE®
500, refer to the NA-3 Welding System instruction
manual. The connection diagram for the LN-8 can be
used for connecting the NA-3.
• Set the Wire Feeder Voltage Switch to 115V.
CONNECTION OF MAGNUM SC SPOOL
GUN TO THE AIR VANTAGE® 500 (SEE
SECTION F)
Spool Gun (K487-25) and Cobramatic to AIR VAN-
TAGE® 500
• Shut the welder off.
• Connect per instructions on the appropriate connec-
tion diagram in Section F.
CONNECTION OF THE LN-25 TO THE AIR
VANTAGE® 500.
Shut off welder before making any electrical con-
nections.
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The LN-25 with or without an internal contactor may be
used with the AIR VANTAGE® 500. See the appropri-
ate connection diagram in Section F.
NOTE: The LN-25 (K431) Remote Control Module and
(K432) Remote Cable are not recommended for use
with the AIR VANTAGE® 500.
1. Shut the welder off.
2. For electrode Positive, connect the electrode cable
from the LN-25 to the "+" terminal of the welder and
work cable to the "-" terminal of the welder. For
electrode Negative, connect the electrode cable
from the LN-25 to the "-" terminal of the welder and
work cable to the "+" terminal of the welder.
3. Attach the single lead from the front of the LN-25 to
work using the spring clip at the end of the lead.
This is a control lead to supply current to the wire
feeder motor; it does not carry welding current.
4. Set the MODE switch to the "CV-WIRE " position.
5. Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON"
6. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
7. Set the "IDLE" switch to the "AUTO" position. When
not welding, the AIR VANTAGE® 500 engine will be
at the low idle speed. If you are using an LN-25 with
an internal contactor, the electrode is not energized
until the gun trigger is closed.
8. When the gun trigger is closed, the current sensing
circuit will cause the AIR VANTAGE® 500 engine to
go to the high idle speed, the wire will begin to feed
and the welding process started. When welding is
stopped, the engine will revert to low idle speed
after approximately 12 seconds unless welding is
resumed.
If you are using an LN-25 without an internal con-
tactor, the electrode will be energized when the AIR
VANTAGE® 500 is started.
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WARNING
CAUTION