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LN-25X™
OPERATION
Internal Controls Description
2 Step - Trigger Interlock Switch
The 2 Step - Trigger Interlock switch
changes the function of the gun trigger.
2 Step trigger operation turns welding
TRIGGER
on and off in direct response to the
INTERLOCK
trigger. Trigger Interlock operation
allows welding to continue when the
trigger is released for comfort on long
welds.
Place the toggle switch in the DOWN
2-STEP
position for 2 Step operation or in the
UP position for Trigger Interlock
operation.
2 Step Trigger
2 Step trigger operation is the most common. When the gun
trigger is pulled, the welding power source energizes the
electrode output and the wire feeder feeds wire for welding. The
power source and wire feeder continue welding until the trigger is
released.
Trigger Interlock
Trigger Interlock operation provides for operator comfort when
making long welds. When the gun trigger is first pulled, the
welding power source energizes the output and the wire feeder
feeds wire for welding. The gun trigger is then released while the
weld is made. To stop welding, the gun trigger is pulled again,
and when it is released the welding power source output turns off
and the wire feeder stops feeding wire.
Caution: If the arc goes out while welding with trigger interlock
operation, the electrode output from the welding power source
remains energized and the wire feeder will continue to feed wire
until the gun trigger is again pulled and then released.
Cold Feed Pushbutton
When cold feeding, the wire drive
will feed electrode but neither the
power source nor the gas solenoid
will be energized. Adjust the speed
of cold feeding by rotating the WFS
knob. Cold feeding, or "cold
inching" the electrode is useful for
threading the electrode through the
gun.
B-11
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