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A-7
CONNECTION OF LINCOLN ELECTRIC
WIRE FEEDERS
Connection of LN-7 or LN-8 to the RANGER 305D
• Shut the welder off.
• Connect the LN-7 or LN-8 per instructions on the
appropriate connection diagram in Section F.
• Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode being
used.
• Set the "MODE" switch to the "CV WIRE " position.
• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
• Set the "WELD TERMINALS" switch to the
"REMOTELY CONTROLLED" position.
• Set the "IDLE" switch to the "HIGH" position.
Connection of LN-742, Spool Gun(K487-25SG)and
Cobramatic to RANGER 305D
• Shut the welder off.
• Connect per instructions on the appropriate connec-
tion diagram in Section F.
Connection of LN-15 to the Ranger 305D
These connections instructions apply to both the LN-
15 Across-The-Arc and Control Cable models. The
LN-15 has an internal contactor and the electrode is
not energized until the gun trigger is closed. When the
gun trigger is closed the wire will begin to feed and the
welding process is started.
• Shut the welder off.
• 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.
• Across-The-Arc Model:
Attach the single lead from the front of the LN-15 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.
INSTALLATION
• Control Cable Model:
Connect Control Cable between Engine Welder and
Feeder.
• Set the MODE switch to the "CV-WIRE " position.
• Across-The-Arc Model:
Set the "WELD TERMINALS" switch to "WELD TER-
MINALS ON"
Control Cable Model:
Set the "WELD TERMINALS" switch to "REMOTELY
CONTROLLED"
• Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode polarity
being used.
• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
• Set the "IDLE" switch to the "High" position
Connection of an LN-23P Wire Feeder to the
RANGER 305D
• Shut the welder off.
• Connect the LN-23P as per instructions on the
appropriate connection diagram in Section F.
(NOTE): When connecting an LN-23P to the
RANGER 305D, a K350-1 adapter kit must be used.
• Set the "VOLTMETER" switch to "-".
• Set the "MODE" switch to "CV WIRE " position.
• Set the "WELD TERMINALS" switch to "REMOTELY
CONTROLLED".
• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
• Set the "IDLE" switch to the "AUTO" position. When
not welding, the RANGER 305D engine will be at the
low idle speed. If you are using an LN-23P with the
K350-1 adapter kit, the electrode is not energized
until the gun trigger is closed. When the gun trigger
is closed, the current sensing circuit will cause the
RANGER 305D engine to go to the high idle speed,
the wire will begin to feed and the welding process
can be started. When welding is stopped, the engine
will revert to low idle speed after approximately 12
seconds unless welding is resumed.
RANGER 305D
A-7
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