Lincoln Electric IM10102 AIR VANTAGE 650 - Manual (Page 20)

A-10 INSTALLATION
AIR VANTAGE ® 650 CUMMINS
A-10
CONNECTION OF AN NA-3 AUTOMATIC
WELDING SYSTEM TO THE AIR VAN-
TAGE
® 650 CUMMINS
For connection diagrams and instructions for connecting
an NA-3 Welding System to the AIR VANTAGE
® 650
CUMMINS, refer to the NA-3 Welding System instruc-
tion manual. The connection diagram for the LN-8 in
Section F 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
® 650 CUM-
MINS (SEE SECTION F)
Spool Gun (K487-25) and Cobramatic to AIR VAN-
TAGE
® 650 CUMMINS
• 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
® 650 CUMMINS.
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
® 650 CUMMINS. See the
appropriate 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
® 650 CUMMINS.
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 ® 650 CUMMINS
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 and an arc has been
struck, the current sensing circuit will cause the AIR
VANTAGE
® 650 CUMMINS engine to go to the high
idle speed, the wire will begin to feed and the weld-
ing process started. When welding is stopped, the
engine will revert to low idle speed after approxi-
mately 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
® 650 CUMMINS is started.
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WARNING
CAUTION