Miller PORTA-MIG Panduan Pemilik - Halaman 26

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Miller PORTA-MIG Panduan Pemilik
10.
Energize
the
welding
power
source
(and place
the Remote Contactor Control
switch,
if
applica
ble,
in the
OFF
position).
11.
Place the wire
feeder POWER
switch in the
ON
position.
12.
Depress
the gun
trigger.
This
will
feed
the
welding
wire
through
the
gun. Release
the
gun
trigger
when the
welding
wire extends
approximately
one
inch
(25.4 mm)
out
of the
gun
tip.
13.
Shut
down
welding
power
source,
and
place
wire
feeder POWER
switch in the
OFF
position.
SECTION
5-
OPERATOR CONTROLS
tate
knob
counterclockwise,
approximately
one-half of
a
turn, and
swing
door open. This small door allows
con
trol
adjustments
to
be made without
exposing
internal
components
of the unit.
5-2.
POWER SWITCH
(Figure 5-1)
Placing
the
POWER
switch in the
ON
position supplies
115 volts
ac
to
the unit and
places
it in
an
operational
condition,
ready
to
feed
wire
and
permit
shielding
gas
to
flow.
Placing
the POWER switch in the
OFF
position
shuts down the wire feeder.
5-3.
WIRE SPEED
CONTROL
(Figure
5-1)
The WIRE SPEED control is calibrated
in
percent
and
provides
a means
of
determining
the
rate at
which weld
ing
wire
feeds
into the weld.
Rotating
the WIRE
SPEED
control in
a
clockwise direction increases the
rate of
wire
feed. When the WIRE SPEED
control is
set at
0,
wire
feeds
at
a
rate
of 50
ri.
(1
3
m)
per minute: when
set at
100,
wire feeds
at
a
rate
of
575 in.
(14.6 m)
per minute.
SECTION
6
SEQUENCE OF OPERATION
a
WARNING:
ELECTRIC
SHOCK
can
kill;
MOVING PARTS
can cause
serious
injury;
IMPROPER AIRFLOW AND EXPOSURE TO
ENVIRONMENT
can
damage
internal
parts.
Do
not
touch live electrical
parts.
Keep
away from
moving
parts.
Keep
all
covers
and
pane/s
in
place
while
operating.
Warranty
is
void
if the
wire feeder is
operated
with
any
portion
of
the outer enclosure removed.
ARC
RAYS, SPARKS,
AND HOT
SURFACES
can
burn eyes and
skin;
NOISE
can
damage
hearing.
Wear correct eye,
ear,
and
body protection.
FUMES
AND
GASES
can
seriously
harm
your
health.
Keep
your head
out
of
the
fumes.
Ventilate
to
keep
from
breathing
fumes and
gases.
If ventilation is
inadequate,
use
approved
breathing
device.
OM-1220
Page
20
WELDING
WIRE
can
cause
puncture
wounds.
Do
not
point
gun
toward any
part
of the
body,
any conductive
surface,
or
other
personnel.
HOT
METAL, SPATTER,
AND
SLAG
can
cause
fire and burns.
Watch for fire.
Keep
a
fire
extinguisher
nearby,
and know
how
to
use
it.
Do
not
use near
flammable material.
Allow work and
equipment
to cool before
handling.
MAGNETIC FIELDS FROM HIGH CURRENTS
can
affect
pacemaker operation.
Wearers should consult their doctor before
going
neararc
welding, gouging,
or
spot
weld
ing
operations.
See Section
1
-
Safety
Rules For
Operation
Of
Arc
Welding
Power
Source for basic
welding
safety
information.
Wire
Speed
Control
Fuse
(see
Section
7.5)
Power
Switch
(see
SectIon
7-5)
TA-049 9~B
Figure
5-1.
Control Panel
5-1.
GENERAL
The control
panel
is located under the small
access
door
(see
Figure
4-4).
To open this door to
adjust
controls,
ro