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Graphic symbols that appear on this
machine or in this manual
INPUT POWER
ON
OFF
WIRE FEEDER
POSITIVE OUTPUT
NEGATIVE OUTPUT
INPUT POWER
DIRECT CURRENT
OPEN CIRCUIT VOLTAGE
INPUT VOLTAGE
OUTPUT VOLTAGE
INPUT CURRENT
OUTPUT CURRENT
PROTECTIVE GROUND
WARNING OR CAUTION
English
Definition of welding terms
WFS
•
Wire Feed Speed
CC
•
Constant Current
CV
•
Constant Voltage
GMAW
•
Gas Metal Arc welding
SMAW
•
Shielded Metal Arc welding
FCAW
•
Flux Core Arc Welding
General description
General physical description
The LN-25™ PRO is specially engineered to be the most
rugged portable wire feeder available.
Several models of the LN-25™ PRO are offered to best
meet individual welder needs. The Extra Torque model
features additional torque gearing for reliable feeding of
large diameter FCAW wires. The Standard and Dual
Power models feature wire drive gearing for great
performance for both FCAW and GMAW wires of
common sizes. All of the models include a gas solenoid
for the flexibility to run most wire processes.
The plastic case is molded from a high impact, flame
retardant plastic for durability and low weight.
The heart of the LN-25™ PRO is the 2 roll MAX-TRAC™
drive. The patented features on the wire drive offer tool-
less changing of the drive rolls and wire guides for quick
spool changes. A tachometer controlled motor powers
the patented drive rolls for smooth, steady feeding
without slippage.
With a 450 amp, 60% duty cycle rating, these feeders
are ready for heavy duty welding.
General functional description
All LN-25™ PRO's have adjustable WFS range for
improving the knob sensitivity. The low range is great for
critical welds with Innershield wires, and the upper range
is suitable for general purpose welding. Selection of the
WFS range is by a rocker switch or through the set-up
menu on meters with digital displays.
Recommended processes
•
GMAW
•
FCAW
11
English
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