Lincoln Electric LINC FEED 40 Operator's Manual page 8

it is not the case, or if the wire slips, increase the
pressure setting using the with the adjustment nut
until the wire feed speed becomes regular.
•
Mount again the contact tip and the gas nozzle. Be
sure the that both the wire feed speed and the size
of contact tip are correct.
•
Connect the work clamp to the work piece or to the
welding table making sure that the clamp is
provided with a good quality contact (the surface of
work piece must be clean and must not show any
rust, paint or oily stains).
Description
A. B. C. D. E. 4-roll gear box and motor assembly
configurable with 2 or 4 driven rolls according to the
selected drive roll kit (see "Accessories").
F. Cold inch control and gas purge control: This is an
up/down center-off momentary toggle switch. When
held in the down position, the Wire Drive will feed
wire, but neither the power source nor the gas
solenoid will be energized. When cold feeding, the
feed speed can be adjusted by rotating the WFS
encoder knob on the Control Box. Adjusting the
cold feed will not affect the run in or welding wire
feed speed. When the cold feed switch is released,
the cold feed value is saved. When this switch is
held in the up position, the gas solenoid valve is
energized, but neither the power source nor the
drive motor will be energized.
G. Tool case (contact tips, drive rolls, guide-tubes...).
H1. Remote control receptacle.
H2. Push-Pull receptacle.
I. Water connector (as standard on water cooled
models): for connecting water cooled torches.
J. Water/air cooled torch selection switch (as standard
on water cooled models): Set this switch according
to the torch model (air cooled or water cooled) being
used.
K. Cover
L. Led status Light (see description below).
M. 2/4 strokes switch
2 Step Logic:
With Hot/Soft Start & Crater Fill "OFF"
1. Closing the gun trigger initiates the welding
sequence (preflow, run in, etc.).
2. Opening the gun trigger ends the welding
sequence (burnback, postflow, etc.).
With Hot/Soft Start "ON":
1. Closing the gun trigger initiates the welding
sequence (preflow, run in) and changes the
wire feed speed and the Volts/Trim to the
Hot/Soft Start values. After the Hot/Soft Start
time, the welding sequence continues and
changes the wire feed speed and the Volts/Trim
to Welding values.
2. Opening the gun trigger ends the welding
sequence (burnback, postflow, etc.).
With Crater Fill "ON":
1. Closing the gun trigger initiates the welding
sequence (preflow, run in, etc.).
2. Opening the trigger will changes the wire feed
speed and the Volts/Trim to the Crater values,
and the downslope will continue during the
Crater time.
4 Step Logic:
With Hot/Soft Start & Crater Fill "OFF"
1. Closing the gun trigger initiates the welding
sequence (preflow, run in, etc).
2. Opening the trigger allows the wire to continue
feeding before or after the welding arc is
established. If the arc goes out the wire
continues feeding.
3. Closing the trigger again cancels the interlock
and the wire to continues feeding.
4. Opening the trigger again ends the welding
sequence (burnback, postflow, etc.).
With Hot/Soft Start "ON":
1. Closing the gun trigger initiates the welding
sequence (preflow, run in) and changes the
wire feed speed and the Volts/Trim to the
Hot/Soft Start values.
2. Opening the trigger continue in the welding
sequence and changes the wire feed speed
and the Volts/Trim to Welding values. The wire
continues feeding while the welding arc is
established. If the arc goes out the wire
continues feeding.
3. Closing the trigger again cancels the interlock
and the wire to continues feeding.
4. Opening the trigger again ends the welding
sequence (burnback, postflow, etc.).
With Crater Fill "ON":
1. Closing the gun trigger initiates the welding
sequence (preflow, run in, etc.).
2. Opening the trigger allows the wire to continue
feeding before or after the welding arc is
established. If the arc goes out the wire
continues feeding.
3. Closing the trigger again cancels the interlock
changes the wire feed speed and the Volts/Trim
A-3