Lincoln Electric RANGER 250 LPG IM931 - Manual (Page 18)

A-10 INSTALLATION
RANGER 250 LPG
A-10
Connection of Prince Spool Gun to the RANGER
250 LPG
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.
Connection of the LN-25 to the RANGER 250 LPG
The LN-25 with or without an internal contactor may be
used with the RANGER 250 LPG. 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 RANGER 250 LPG.
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 elec-
trode 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 TER-
MINALS 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 RANGER 250 LPG 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 RANGER 250 LPG 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 the RANGER 250 LPG
1. Shut the welder off.
2. Connect per instructions on the appropriate con-
nection diagram in Section F.