Lincoln Electric Pro-MIG 140 User Manual download pdf (Page 14)

B-2

OPERATION

B-2

Refer to Figure B.1b.

4. Circuit Breaker – Protects machine from damage if

maximum output is exceeded. Button will extend

out when tripped (Manual reset).

5. Gun Trigger - Activates welding output, wire feed,

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

FIGURE B.1b

● No external shielding gas is required when used

with Lincoln Innershield .035” (0.9 mm) NR

-211-

MP electrode.

● 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.

Pro-MIG 140

OFF

ARC VOLTS

WIRE SPEED

Pro-MIG™ 140

DO NOT SWITCH

WHEN WELDING

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 65 66

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Lincoln Electric Pro-MIG 140 User Manual Page 14

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