Lincoln Electric RANGER 250 IM833-C Operator's Manual page 17

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7. Set the "IDLE" switch to the "AUTO" position.
When not welding, the Ranger 250 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 sens-
ing circuit will cause the Ranger 250 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.
Connection of LN-742, K487-25 Spool Gun, and
Cobramatic to Ranger 250
1. Shut the welder off.
2. Connect per instructions on the appropriate con-
nection diagram in Section F.
Connection of Prince Spool Gun to the RANGER
250
Connection of the Prince XL Spool Gun requires the
use of the K1849-1 Adapter Module.
1. Shut the Welder off.
2. For electrode Positive, connect the electrode cable
to the "+" terminal of the welder and work cable to
the "-" terminal of the welder. For electrode
Negative, connect the electrode cable "-" terminal
of the welder and work cable to the "+" terminal of
the welder.
3. Connect the Control Cable of the Spool Gun to the
Adapter Module and connect the Control Cable of
the Adapter Module to the Welder.
4. Connect the Gas Hose.
5. Set the MODE switch to the "CV-WIRE " position.
6. Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON"
7. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
8. Set the "IDLE" switch to the "HIGH" position.
INSTALLATION
RANGER 250
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