Lincoln Electric IM733 LN-15 WIRE FEEDER - Manual (Page 14)

B-2 OPERATION B-2
GENERAL DESCRIPTION
The LN-15 is a light weight, portable, durable semi-
automatic wire feeder.
The LN-15 accommodates spools 8" (200mm) diame-
ter up to 4" (100mm) wide.
The feeder comes factory equipped with a K1500-2
Tweco style #2-#4 gun bushing. Other K1500 series
gun bushings are available as field installed options.
The “ dual procedure ” mode drops the WFS 83% from
the original set point. The voltage setting remains the
same.
The Across the Arc Model is capable of operating with
Lincoln DC power sources supplying between 15VDC
and 110 VDC. Simply attach the work clip and then
connect the LN-15 to the electrode cable and it is
ready to weld.
An internal contactor in Across the Arc Models ener-
gizes the electrode output in response to the gun trig-
ger.
• Burn-back is adjustable from 0.0 to 0.25 seconds,
with a default of 0.0 seconds.
• The preflow time is adjustable from 0.00 to 2.50 sec-
onds, with a default of 0.0 seconds.
• The postflow time is adjustable from 0.0 to 10.0 sec-
onds, with a default setting of 0.0 seconds.
DUTY CYCLE
The LN-15 wire feeders are intended for semi-automatic
use. The maximum rating of the LN-15 is based upon a
60% duty cycle; welding 6 minutes of welding followed by
4 minutes of idling within a 10 minute period.
RECOMMENDED PROCESSES
The LN-15 wire drive feeds electrode for various
processes as follows:(See Table B.1)
The Across the Arc Model is suitable for GMAW and
FCAW semi-automatic applications within the rated
duty cycle.
LN-15 ACROSS THE ARC MODEL
PROCESS LIMITATIONS
• The across the arc model is not recommended for
GMAW-STT, SAW, SMAW, GTAW or CAG.
• The LN-15 does not support 4 step trigger operation.
OPERATIONAL FEATURES AND
CONTROLS
• Built in flow meter for adjusting shielding gas.
• Cold Feed/Gas Purge switch.
• Digital wire feed speed control.
• Digital display of welding voltage.
• Adjustable preflow and postflow times
• Adjustable burnback times.
Process Wire Diameter Range Wire Feed Speed Range
GMAW 0.023 - 0.052" (0.6 - 1.3 mm) 50 - 700 ipm (1.3 - 17.8 m/minute)
FCAW- Gas Shielded 0.035 - 0.052" (1.2 - 1.3 mm) 50 - 700 ipm (1.3 - 17.8 m/minute)
FCAW- Gas Shielded 1/16 - 5/64" (1.6 - 2.0 mm) 50 - 400 ipm (1.3 - 10.2 m/minute)
FCAW- Self Shielded 0.035 - 0.052" (1.2 - 1.3 mm) 50 - 700 ipm (1.3 - 17.8 m/minute)
FCAW- Self Shielded 1/16 - 5/64" (1.6 - 2.0 mm) 50 - 400 ipm (1.3 - 10.2 m/minute)
TABLE B.1