Controls And Settings - Lincoln Electric 125 Operator's Manual

WIRE FEEDER WELDERS (125, 140)

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 con-
trol sets a weld procedure. Refer to the procedure decal on
the wire drive compartment door to set a welding procedure
based on the type of material and thickness being welded.
3. WIRE FEED SPEED CONTROL (WFS) – This 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 wire drive compartment door to set a welding
procedure based on the type of material and thickness being
welded.
See Figure B.2
4. GUN TRIGGER – Pressing the trigger activates the wire drive
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
work piece.
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.
b. Contact Tip – provides electrical contact to the wire.
c. Nozzle – When flux-cored welding, the black nozzle pro-
tects the mounting threads on the gun. When MIG welding,
the brass 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.1
2
3
1
5c
5a
5
4
7
B 2
OPERATION
FIGURE B.2
6