Controls And Settings - Lincoln Electric POWER MIG 140 Operator's Manual

POWER MIG 140 & 180 MODELS (AU)

Controls and settIngs

This machine has the following controls:
(See Figure B.1)
1. POWER SWITCH – Turns power on and off to the machine.
2. ARC VOLTAGE CONTROL – This knob sets the output voltage
of the machine. Along with wire feed speed (WFS) this
control sets a weld procedure. Refer to the procedure decal
on the inside wire drive compartment door to set a correct
welding procedure based on type of material and thickness
being welded.
3. WIRE FEED SPEED CONTROL (WFS) – The knob sets the
speed that the machine feeds wire. Along with arc voltage
this control sets a weld procedure. Refer to the procedure
decal on the inside wire drive compartment door to set a
correct welding procedure based on type of material and
thickness being welded.
FIGURE B.1
2
3
1
(See Figure B.2)
4. GUN TRIGGER – Pressing the trigger activates the wire drive
to feed wire and energizes the output of the machine. Press
the trigger to weld and release the trigger to stop welding.
5. WELDING GUN – Delivers wire and welding current to the
weld.
a. Gun Liner – wire travels through the liner from the wire drive.
The gun liner will feed .025" to .035" (0.6mm to 0.9mm)
wire. The 180A machine can weld with .045"(1.1mm) wire if
an optional .045"(1.1mm) liner is installed in the gun.
b. Contact Tip – provides electrical contact to the wire.
c. Nozzle – When flux-cored welding the black nozzle protects
the mounting threads on the gun. When MIG welding the
copper nozzle funnels the shielding gas to the weld.
6. WORK CLAMP & CABLE – Clamps to the work piece being
welded and completes the electrical welding circuit.
7. GUN TRIGGER CONNECTOR RECEPTACLE – Plug the 4 pin
gun trigger connector into this receptacle.
FIGURE B.2
5C 5B 5
4
5A
B-2
OPERATION
7
6