Lincoln Electric IM931 manual Connection of Lincoln ELEC- Tric Wire Feeders, Across-The-Arc Model

A-9 INSTALLATION A-9

CONNECTION OF LINCOLN ELEC- TRIC WIRE FEEDERS

Connection of LN-7 or LN-8 to the RANGER 250 LPG

1.Shut the welder off.

2.Connect the LN-7 or LN-8 per instructions on the appropriate connection diagram in Section F

3.Set the "WIRE FEEDER VOLTMETER" switch to either "+" or "-" as required by the electrode being used.

4.Set the "MODE" switch to the "CV WIRE " posi- tion.

5.Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

6.Set the "WELD TERMINALS" switch to the "REMOTELY CONTROLLED" position.

7.Set the "IDLE" switch to the "HIGH" position.

Connection of LN-15 Wire Feeder to the RANGER 250 LPG

These connections instructions apply to both the LN-

15Across-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.

a. Shut the welder off.

b. 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.

c. 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 cur- rent to the wire feeder motor; it does not carry welding current.

Control Cable Model:

Connect Control Cable between Engine Welder and Feeder.

d. Set the MODE switch to the "CV-WIRE " position.

e. Across-The-Arc Model:

Set the "WELD TERMINALS" switch to

"WELD TERMINALS ON"

Control Cable Model:

Set the "WELD TERMINALS" switch to

"REMOTELY CONTROLLED"

f. Set the "WIRE FEEDER VOLTMETER" switch to either "+" or "-" as required by the electrode polarity being used.

g. Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

h. Set the "IDLE" switch to the "AUTO IDLE" position.

RANGER 250