Welding Capability; Limitations; Controls And Settings - Lincoln Electric Pro-MIG 140 Manual Del Operador

B-2
G
No external shielding gas is required when used
with Lincoln Innershield .035" (0.9 mm) NR ® -211-
MP electrode.
G
Accommodates both 4" (100 mm) diameter and 8"
(200 mm) diameter spools of wire.

WELDING CAPABILITY

The Pro-MIG 140 is rated at 90 amps, 19 volts, at
20% duty cycle on a ten minute basis. It is capable of
higher output currents at lower duty cycles.

LIMITATIONS

Arc Gouging cannot be performed with the Pro-MIG
140. The Pro-MIG 140 is not recommended for pipe
thawing or TIG welding.

CONTROLS AND SETTINGS

Refer to Figure B.1a.
1. Control Power ON/OFF Switch
— When the power is on the
fan motor will run and air will be
exhausted out the louvers in the
front of the machine. The weld-
ing output and wire feeder
remain off until the gun trigger
is pressed.
2. Wire Speed Control —
Controls the wire feed speed
from 50 – 300 in /min. (1.3 –
7.6 m/min.). The control can
be preset on the dial to the
setting specified on the Pro-
MIG 140 Application Chart
located on the inside of the
wire feed section door.
3. Voltage Control — A 4-posi-
tion tap selector switch gives
full range adjustment of
power source output voltage.
Do not switch while welding
as damage to switch may
occur.
OPERATION
Refer to Figure B.1b.
4. Circuit Breaker – Protects machine from damage if
5. Gun Trigger - Activates welding output, wire feed,
OFF
ON
WIRE SPEED
ARC VOLTS
Pro-MIG 140
maximum output is exceeded. Button will extend
out when tripped (Manual reset).
and gas solenoid operation. Releasing the trigger
deactivates welding and simultaneously activates
the "burnback" function so that the welding wire
does not stick in the weld puddle.
FIGURE B.1a
1
Pro-MIG™ 140
FIGURE B.1b
B-2
2
3
DO NOT SWITCH
WHEN WELDING