Lincoln Electric IM408 MAGNUM SG SPOOL GUN - Manual (Page 14)

Installation to Similar Welders with Wire Feed
Control
NOTE: Remote wire speed control will not be
functional when K487 Spool Gun is connected
to welders with internal wire feed control
circuitry. K516 Adapter assembly required.
Installation to other welders is possible as long
as the welder meets the following requirements:
1. Must be a constant voltage (CV) type power
source.
2. Must have a low voltage trigger control
circuit (≤ 24 VAC) which operates power
and gas flow.
3. Must have a wire feed motor control circuit
with approximately 5-24 VDC output range.
4. Must have a solenoid-operated gas handling
system capable of supplying argon at flow
rates of 20-40 cubic feet per hour (cf/h) (9-19
1/min) and a 5/8"-18 RH thread gas fitting
for connection to the spool gun.
The general procedure to install the spool gun is
as follows:
1. Have a qualified serviceman make the
installation.
2. Make sure power source is turned off and
disconnected from supply.
3. Gain access to wire feed compartment and
disconnect and remove wire feed cable and
gun assembly, if installed.
4. Install spool gun power lead to (+) output
terminal of power source. Connect work lead
to (–) output terminal.
5. Connect spool gun gas line to mating output
c o n n e c t o r o n p o w e r s o u r c e . C o n n e c t
regulated argon gas supply to input connector
on power source.
6. Connect black lead from K516 Adapter
assembly to positive connection of motor
control circuit. Similarly, connect white lead
to negative connection of same. Refer to
control circuit diagram on this page for
connector pinouts.
7. C o n n e c t b r o w n a n d r e d l e a d s ( i n t e r -
changeable) from adapter assembly to trigger
circuit input connection.
8. Connect spool gun control cable to adapter
assembly.
9. Set wire feed speed and welding voltage
controls. (1)
(1) See Part B, “Test Weld Settings”.
NOTE: Connector pinouts show view of mating
side of connectors.
7
CONTROL CIRCUIT DIAGRAM