Definition Of Welding Terms; General Description - Lincoln Electric LN-25 Service Manual

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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™ PIPE is specially engineered to be the
most rugged portable wire feeder available and meets
the individual welder needs. This model includes a gas
solenoid for flexibility to run most wire processes.
The plastic case is molded from a high impact, flame
retardant plastic for durability and low weight. The
patent pending design keeps the internal components
protected and dry.
The heart of the LN-25™ PIPE 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 con-
trolled motor powers the patent pending drive rolls for
smooth, steady feeding without slippage.
The LN-25™ PIPE has only two p.c. boards that are
designed to be simple, reliable and easy to service.
OPERATION
GENERAL FUNCTIONAL DESCRIPTION
The LN-25™ PIPE as designed is a simple, robust
feeder. Standard features include a calibrated wire
feed speed dial, 2 step/trigger interlock switch, Gas
Purge and Cold Feed.
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 per-
formed in a 10 minute period.
• The maximum spool size is 45 lb, 12" 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 wire feeder.
• The digital displays do not show preset voltage
RECOMMENDED POWER SOURCES
• CV-250
• CV-300
• CV-305
• CV-400
• CV-655
• DC-400
• DC-600
• DC-655
• Invertec V-350 PRO
• Invertec V-450 PRO
• Multi-Weld 350
• Ranger 10,000
LN-25™ PIPE
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• Ranger 3 Phase
• Ranger 225
• Ranger 225 GXT
• Ranger 250
• Ranger 250 GXT
• Ranger 305
• SAE-400
• Pipeliner 200G
• Classic 300
• Vantage 300
• Vantage 400
• Vantage 500
• Air Vantage 500
Big Red's
Eagle 10,000 Plus
Classic's