Check The Gas Flow; Align And Set The Drive Roller - Craftsman 196.205080 Manual De Usuario

CHECK THE GAS FLOW

WARNING
IMPROPER HANDLING AND MAINTENANCE
OF COMPRESSED GAS CYLINDERS AND
REGULATORS CAN RESULT IN SERIOUS
INJURY OR DEATH.
To reduce the risk of injury or death, always
stand to the side of the cylinder opposite the
regulator when opening the cylinder valve,
keeping the cylinder valve between you and the
regulator. Never aim the open cylinder valve
port at yourself or bystanders. Failure to comply
with this warning could result in serious person-
al injury.
TO REDUCE THE RISK OF REGULATOR
DAMAGE: make sure that the pressure adjust-
ment handle is turned fully counterclockwise
(out) before opening the gas cylinder valve. This
procedure must be followed at initial installation
and each time the cylinder valve is re-opened
after having been closed.
1. Slowly crack open the cylinder valve,
then turn open ALL THE WAY.
2. Turn Power Switch on the front of welder
to ON position.
3. Pull the trigger on the gun to allow the
gas to flow. KEEP THE TRIGGER
PULLED. Listen and feel for gas flowing
from the end of the welding gun. If no gas
is heard or felt, verify all steps involved in
connecting the gas.
4. Turn the regulator adjustment screw
(clockwise to increase gas flow; counter-
clockwise to reduce flow) while watching
the flowmeter on the regulator. For most
welding, the gas flow should be set at 15-
20 cubic feet per hour.
5. Release the trigger.
Note: If welding outside or in a draft, it may
become necessary to set up a wind break to
keep the shielding gas from being blown
from the weld area.
-MAKE SURE TO TURN OFF THE GAS
CYLINDER VALVE WHEN DONE
WELDING.

ALIGN AND SET THE DRIVE ROLLER

Before installing any welding wire into the
unit, the proper sized groove must be placed
into position on the wire drive mechanism.
Change the drive roller according to the fol-
lowing steps:
1. Remove the drive tension by unscrewing
the tension adjusting screw (ALL THE
WAY in a counterclockwise direction).
The drive tension screw will come loose,
allowing you to pull the drive tension arm
up away from the drive roller. Make sure
to keep the screw and the spring in place
with the drive tension arm.
2. If there is wire already installed in the
welder, roll it back onto the wire spool by
hand-turning the spool counter-clockwise.
Be careful not to allow the wire to come
out of the rear end of the gun without
holding onto it or it will unspool itself. Put
the end of the wire into the hole on the
outside edge of the wire spool and bend
it over to hold the wire in place. Remove
the spool of wire from the welder.
3. Remove the drive roller retaining knob
and pull the drive roller straight out and
off the motor shaft.
Note: There are two drive rollers included
with your welder. Each drive roller has two
wire size grooves built into it. When installing
the drive roller the number stamped on the
drive roller for the wire size you are using
should be facing away from you. If you can
read the wire size you are using on the drive
roller, it is installed backwards. Use only the
proper size drive roller when using your
welder.
The table below indicates which drive roller
groove goes with each wire diameter size.
Wire Diameter
.024 inch
.030 inch
.035 inch
.040 inch
.045 inch
Drive Roller Groove:
0.6
0.8
0.8
1.0
1.2
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