Specifications

SECTION
5
SEQUENCE
OF OPERATION
a
WARNING:
ELECTRIC
SHOCK
can
kill;
MOVING
PARTS
can
cause
serious
injury;
IMPROPER
AIR
FLOW
AND
EXPOSURE
TO
ENVIRONMENT
can
damage
internal
parts.

Do
not
touch
live
electrical
parts.

Keep
a//covers
and
panels
in
p/ace
while
op
erating.
Warranty
is
void
if
the unit 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.

Ventilate
to
keep
from
breathing
fumes
and
gases.

If
ventilation
is
inadequate,
use
approved
breathing
device.
HOT
METAL,
SPATTER,
AND
SLAG
can
cause
fire
and
burns.

Watch for
fire.

Have fire
extinguisher
nearby,
and
know how
to
use
it.

Allow
work
and
equipment
to
cool
before
han
dling.
MAGNETIC
FIELDS
FROM
HIGH AMPER
AGES
can
affect
pacemaker
operation.

Wearers
should
consult with their
doctor be
fore
going
near
arc
welding,
gouging,
or
spot
welding
operations.
See
Section
1

Safety
Rules
For
Operation
Of
Arc
Welding
Power
Source in
the
welding
power
source
Owners
Manual
for
basic
welding
safety
information.
5-1.
CONTROL SETUP CHECKLIST
(Tables
5-1
And
5-2)
The
following
tables
provide
the
operator
with
a
quick
checklist
approach
to
setting
switch
positions
and
con
trols
for
the
Shielded
Metal
Arc
(SMAW)
and Gas
Tung
sten
Arc
(GTAW)
Welding
processes.
Specific
control
settings depend
on
the
process
application.
IMPORTANT: See
the
we/ding
power
source
Owners
Manual
for
information
on
function
of
controls.
1.
Install and
connect
unit
according
to
Section
3
of
this
manual
and
the
welding
power
source
Own
ers
Manual.
2.
Wear
dry
insulating
gloves
and
clothing,
and
wear
welding
helmet
with
proper
filter
lens
according
to
ANSI
Z49.1.
3.
Prepare
for
welding
as
follows:
a.
Connect
work
clamp
to
clean,
bare metal
at
workpiece.
b.
Select
and obtain
proper
tungsten
electrode.
c.
Prepare
tungsten
electrode
according
to
weld
ing
power
source
Owners
Manual,
and insert
into torch.
4.
Program
the
weld
sequence
by
setting
switches
and controls
according
to
Section
5-1.
5.
Turn
on
the
shielding
gas.
6.
Place PROGRAMMER
switch in
the
ON
position.
7.
Place
welding
power
source
power
switch
in
the
ON
position.
8.
Push
Programmer
START
push
button
or
remote
switch
(see
Sections
3-5, 3-6,
and
4-2).
a.
For
GTAW
mode: The
START
push
button
switch
or
Remote
Hand
Switch
RHS-46
must
be
momentarily
closed each
time
a
new
sequence
is
desired.
b.
For
AUTO
mode:
Once
the
Start
switch
is
mo
mentarily
closed,
the unit
automatically
cycles
through
the weld
program.
c.
For MANUAL
mode:
The
Start
switch
must
be
held
closed
during
the
entire
program.
The
IN
ITIAL
AMPERAGE
TIME
and
PERCENTAGE
UPSLOPE
RATE
controls function
but the
weld
time
is
manually
controlled.
The
unit
stops
and
resets
as
soon
as
the
Start
switch
is
opened (no
downslope
or
final
conditions).
IMPORTANT:
For
SP- 1
and
SP-2
models:
If
an
arc
out
age
occurs
at
any
point
in
the
program,
the
amperage
setting
reverts
to
that
of the
INITIAL
AMPERAGE
control
for
arc
starting.
For
SP-3
and
SP-4
models:
If
an
arc
out
age
occurs
during
the
initial,
upslope,
or
weld
conditions,
the
welding
power
source
contactor
opens
and
weld
out
put
is
not
available. The
Programmer
continues
to
the
end of the
cycle
and
resets.
9.
Adjust
controls
as
necessary.
S
5-2.
GAS
TUNGSTEN
ARC
WELDING
(GTAW)
a
WARNING:
Read
and
follow
safety
informa
tion
at
beginning
of
entire
Section
5
before
proceeding.
S
OM-531
Page
12