Installation And Operator Instructions; Product Description - Lincoln Electric LINC FEED 40 Manual De Instrucciones

CYLINDER MAY EXPLODE IF DAMAGED: Use only compressed gas cylinders containing the
correct shielding gas for the process used and properly operating regulators designed for the gas and
pressure used. Always keep cylinders in an upright position securely chained to a fixed support. Do
not move or transport gas cylinders with the protection cap removed. Do not allow the electrode,
electrode holder, work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders
must be located away from areas where they may be subjected to physical damage or the welding
process including sparks and heat sources.

Installation and Operator Instructions

Read this entire section before installation or operation
of the machine.

Product Description

The LF 40 is a high performance, digitally controlled,
wire feeder. Properly equipped, it can support the
GMAW, GMAWP, FCAW and SMAW processes. The
Power Feed wire feeders are designed to be a part of a
modular, multi process welding system.
The LF40 is a 4 drive roll wire feeder that operates on
40V input power.
The LF 40 wire feeder is designed to be used with
compatible power sources, operating as a system. Each
component in the system has special circuitry to "talk
with" the other system components, so each component
(power source, wire feeder, electrical accessories)
knows what the other is doing at all times.
Recommended Equipment
The LF40 must be used with power sources having
digital communication capabilities and 40 VDC auxiliary
power. The presently available power sources are the
PowerWave range. (PW455 / PW405 / PW345).
Duty Cycle
The LF40 wire feeder is capable of welding at a 100%
duty cycle (continuous welding). The power source will
be the limiting factor in determining system duty cycle
capability.
Location and Environment
This machine will operate in harsh environments.
However, it is important that simple preventative
measures are followed to assure long life and reliable
operation.
•
Do not place or operate this machine on a surface
with an incline greater than 15° from horizontal.
•
Do not use this machine for pipe thawing.
•
This machine must be located where there is free
circulation of clean air without restrictions for air
movement to and from the air vents. Do not cover
the machine with paper, cloth or rags when
switched on.
•
Dirt and dust that can be drawn into the machine
should be kept to a minimum.
• This machine has a protection rating of IP23. Keep
it dry when possible and do not place it on wet
ground or in puddles.
•
Locate the machine away from radio controlled
machinery. Normal operation may adversely affect
the operation of nearby radio controlled machinery,
which may result in injury or equipment damage.
Read the section on electromagnetic compatibility in
this manual.
•
Do not operate in areas with an ambient
temperature greater than 40°C.
Input Supply Connection
Verify the connection of grounding wires from the power
source to the input source.
Gas Connection
Once a gas cylinder has been securely installed on the
machine, connect the gas hose of the input cable to the
gas cylinder using a flow regulator.
Drive Rolls and Guide Tubes
Installation
•
Mount the wire spool on the output shaft so that, by
dragging the extremity of the wire, the spool turns
anticlockwise.
•
The wire diameter must fit the diameter stenciled on
the visible side of drive rolls. If it is not the case,
unscrew the screws holding the rolls, turn them or
replace them with rolls that fit the wire diameter
used.
•
Every drive roll is provided with 2 grooves to allow
the feeding of wires with different diameters.
• Specific drive rolls are available for cored or
aluminium wires. It is also possible to configure the
wire feeder with 4 driven rolls (see "Accessories").
•
Lift the levers of ball bearings which press on drive
rolls. •
Insert the wire inside the fitting inlet guide and let it
out from the torch adapter. Lower the levers
regulating the bearings. Use the adjustment nut to
modify the pressure of the bearings.
Idle Roll Pressure Setting
For small wire sizes and aluminum wires, the idle roll
pressure varies with type of wire, surface condition,
lubrication and hardness.
An excessive pressure may cause wire distortion. It may
be jammed or break which may cause an early wear and
tear of the feeding motor. Turn back the adjusting knob
and repeat the operation.
A too low pressure may cause wire feeding irregularities.
Connecting the Welding Gun
• Position the gun connector located at the end of the
torch in front of the gun connector machine. Gently
push and screw the black locking nut.
•
Connect the gun to the gun adapter.
•
Take off the gas guide from the gun extremity and
unscrew the contact tip. The wire must feed
regularly without any variation in wire feed speed. If
A-2