Lincoln Electric IM10076 LN-25 PRO - Manual (Page 20)

b-2 OPERATION b-2
LN-25™ PRO
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 dis-
plays.
RECOMMENDED PROCESSES
• GMAW
• FCAW
PROCESS LIMITATIONS
• GMAW-P procedures must be qualified by the cus-
tomer.
• Across-the-Arc models are not recommended for
stitch or spot welding.
EQuIPMENT LIMITATIONS
• The duty cycle of the wire feeder is 450A, 60%.
Duty cycle is based upon the amount of welding
performed in a 10 minute period.
• The maximum spool size is 45 lb. (24 Kg), 12”
(305mm) diameter.
• Maximum FCAW gun length is 15 ft.
• Maximum GMAW gun length is 25 ft.
• K2330-1 Timer Kits do not work with the feeder. Use
K2330-2 kits.
• Push-pull guns do not work with the LN-25™ PRO.
• Not compatible with K489-7 Euro connector (except
K2614-7,-8)
RECOMMENDED POWER SOuRCES
• CV-305
• CV-400
• CV-655
• DC-400
• DC-600
• DC-655
• Invertec V-350
• FlexTec 450
• Multi-Weld 350
• Ranger 10,000 • Ranger 3 Phase
• Ranger 225
• Ranger 225 GXT
• Ranger 250
• Ranger 305
• SAE-400
• Pipeliner 200G
• Classic 300
• Vantage 300
• Vantage 400
• Vantage 500