To Start The Welder; Feeding Electrode; Idle Roll Pressure Setting; Wire Drive Configuration - Lincoln Electric POWER MIG 216 Operator's Manual

B-4

TO START THE WELDER

Turn the "Power Switch" switch to "ON". With the desired voltage
and wire speed selected, operate the gun trigger for welder output
and to energize the wire feed motor.
FEEDING WIRE ELECTRODE
WARNING
When triggering, the electrode and
drive mechanism are electrically
"hot" relative to work and ground and
remain "hot" for several seconds
after the gun trigger is released.
------------------------------------------------------------------------
NOTE: Check that drive rolls, guide plates and gun
parts are proper for the wire size and type being used.
Refer to Table C.1 in Accessories section.
1. Turn the spool until the free end of the electrode is
accessible.
2. While securely holding the electrode, cut off the
bent end and straighten the first six inches. If the
electrode is not properly straightened, it may not
feed properly through the wire drive system.
3. Release the pressure on the idle roll by swinging
the adjustable pressure arm down toward the back
of the machine. Lift the cast idle roll assembly and
allow it to sit in an upright position. Leave the outer
wire guide plate installed. Manually feed the wire
through the incoming guide bushing and through
the guide plates (over the drive roll groove). Push a
sufficient wire length to assure that the wire has fed
into the gun and cable assembly without restriction.
Reposition the adjustable pressure arm to its origi-
nal position to apply pressure to the wire.
4. Press gun trigger to feed the electrode wire through
the gun.

IDLE ROLL PRESSURE SETTING

WARNING
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the weld-
ing power source before installation or
changing drive rolls and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode
and drive mechanism are "hot" to work and
ground and could remain energized several sec-
onds after the gun trigger is released.
• Only qualified personnel should perform mainte-
nance work.
------------------------------------------------------------------------
OPERATION
The pressure arm controls the amount of force the drive
rolls exert on the wire. Proper adjustment of pressure
arm gives the best welding performance. For best
results, set pressure arm to the suggested value.
Set the pressure arm as follows (See Figure B.4):
Aluminum wires
Cored wires
Steel, Stainless wires
FIGURE B.4

WIRE DRIVE CONFIGURATION

See Figure B.5
Changing the Gun Adapter
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the weld-
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode
and drive mechanism are "hot" to work and
ground and could remain energized several sec-
onds after the gun trigger is released.
• Only qualified personnel should perform mainte-
nance work.
-----------------------------------------------------------------------
Tools required:
• 1/4" hex key wrench.
NOTE: Some gun adapters do not require the use of
the hand screw.
1. Turn power OFF at the welding power source.
2. Remove the welding wire from the wire drive.
3. Remove the hand screw from the wire drive.
4. Remove the welding gun from the wire drive.
POWER MIG® 216
between 1 and 3
between 3 and 4
between 4 and 6
CORED WIRES SOLID WIRES
1
3 2
ALUMINUM
OUTERSHIELD
4
METALSHIELD
5
INNERS HIELD
6
STAINLE SS
WARNING
ing power source before installation or
changing drive rolls and/or guides.
B-4
STEEL