Gun And Cable Installation; Shielding Gas - Lincoln Electric POWER MIG 216 Manual Del Usuario

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A-4

GUN AND CABLE INSTALLATION

The Magnum 250L gun and cable provided with the
POWER MIG® 216 is factory installed with a liner for .035-
.045" (0.9-1.1 mm) electrode and an .035" (0.9 mm) contact
tip. Be sure that the contact tip, liner, and drive rolls all
match the size of the wire being used.
WARNING
Turn the welder power switch off before installing gun
and cable.
1. Lay the cable out straight.
2. Unscrew the Hand Screw on the drive unit front end
(inside wire feed compartment) until tip of screw no
longer protrudes into Gun Adapter opening as seen
from front of machine. (See Figure A.2)
3. Insert the male end of gun cable into the Gun Adapter
through the opening in front panel. Make sure connector
is fully inserted and tighten Hand Screw.
4. Connect the Gun Trigger Connector from the gun and
cable to the mating Receptacle outside the compartment
located left of the opening on the Front Panel. Make sure
that the keyways are aligned, insert and tighten retaining
ring.

SHIELDING GAS

[For Gas Metal Arc Welding(GMAW) Processes]
Customer must provide cylinder of appropriate type shield-
ing gas for the process being used.
A gas flow regulator, for Argon blend gas, and an inlet gas
hose are factory provided with the POWER MIG® 216.
When using 100% CO
2
required to connect the regulator to the gas bottle.
WARNING
CYLINDER may explode if
damaged.
• Gas under pressure is explosive.
Always keep gas cylinders in an
upright position and always keep
chained to undercarriage or stationary
support.
See American National Standard Z-49.1, "Safety in
Welding and Cutting" published by the American
Welding Society.
------------------------------------------------------------------------
INSTALLATION
an additional adapter will be
POWER MIG® 216
INSTALL SHIELDING GAS SUPPLY AS FOLLOWS:
1. Set gas cylinder on rear platform of POWER MIG® 216.
Hook chain in place to secure cylinder to rear of welder.
2. Remove the cylinder cap. Inspect the cylinder valves and
regulator for damaged threads, dirt, dust, oil or grease.
Remove dust and dirt with a clean cloth.
DO NOT ATTACH THE REGULATOR IF OIL, GREASE
OR DAMAGE IS PRESENT! Inform your gas supplier of
this condition. Oil or grease in the presence of high pres-
sure oxygen is explosive.
3. Stand to one side away from the outlet and open the
cylinder valve for an instant. This blows away any dust or
dirt which may have accumulated in the valve outlet.
WARNING
Be sure to keep your face away from the valve outlet
when "cracking" the valve.
4. Attach the flow regulator to the cylinder valve and tighten
the union nut(s) securely with a wrench.
NOTE: If connecting to 100% CO
regulator adapter must be installed between the regula-
tor and cylinder valve. If adapter is equipped with a plas-
tic washer, be sure it is seated for connection to the CO
cylinder.
5. Attach one end of the inlet gas hose to the outlet fitting of
the flow regulator, the other end to the POWER MIG®
216 rear fitting, and tighten the union nuts securely with
a wrench.
6. Before opening the cylinder valve, turn the regulator
adjusting knob counterclockwise until the adjusting
spring pressure is released.
7. Standing to one side, open the cylinder valve slowly a
fraction of a turn. When the cylinder pressure gauge
pointer stops moving, open the valve fully.
WARNING
Never stand directly in front of or behind the flow regu-
lator when opening the cylinder valve. Always stand to
one side.
--------------------------------------------------------------------------------
8. The flow regulator is adjustable. Adjust it to the flow rate
recommended for the procedure and process being used
before making the weld.
FIGURE A.2
Hand Screw
Gun Adapter
Male End
Gun and Cable
Gun Trigger
Connector
A-4
cylinder, an additional
2
Receptacle
2

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