Cold Feed/Gas Purge Switch; Pressure Arm Adjustment; Light Switch; Heater Switch - Lincoln Electric Power Feed 25M Operator's Manual

POWER FEED™ 25M

COLD FEED/GAS PURGE SWITCH

Cold Feed and Gas Purge are combined into
a Rocker switch.
To activate Cold Feeding, push and hold the
Rocker switch in the UP position. 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.
Push the Rocker switch in the DOWN position to activate Gas
Purge and let the shielding gas flow. The gas solenoid valve will
energize but neither the power source output nor the drive motor
will be turned on.

LIGHT SWITCH

Push the light Rocker switch to illuminate the
inside of the POWER FEED™ 25M

HEATER SWITCH

Push the heater switch ON to warm the inside of the
POWER FEED™ 25M. The heater is useful for
reducing condensation build-up on the spool of wire.

PRESSURE ARM ADJUSTMENT

COLD FEED/GAS PURGE
ROCKER SWITCH
C OLD
FEED
• Do not touch electrically live parts.
GAS
PURGE
• When inching with the gun trigger, electrode and drive
mechanism are "hot" to work and ground and could
remain energized several seconds after the gun trigger is
released.
• Do not operate with covers, panels or guards removed or
open
• Only qualified personnel should perform maintenance
work.
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The pressure arm controls the amount of force the drive rolls exert
on the wire. Proper adjustment of pressure arm gives the best weld-
ing performance.
Set the pressure arm as follows (See Figure B.18):
LIGHT
ROCKER SWITCH
LIGHTS H
ON O
OFF
HEATER
ROCKER SWITCH
HEATER
ON
OFF
B-35
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the welding power
source before installation or changing drive
rolls and/or guides.
Aluminum wires between 1 and 2
Cored wires between 2 and 3
Steel, Stainless wires between 3 and 5
FIGURE B.18
1
3 2
4
5
6
OPERATION
AL AL
FCAW FCAW
GMAW GMAW