Miller ESS-2500 Owners manual

Page 1
January
1990
FORM:
OM-125
676
RIEDfi
FLE
RETURN
MODEL:
TO
ESS-2500
FOLDER
OWNERS
iMPORTANT:
special
Installing,
instructions
operation
operate,
understand
Read
and
emphasis
on
operating,ormaintaining
for
of
maintain
or
these
are
weiding
use
instructions.
understand
the
safety
only
by
persons
equipment.
this
unit.
Contact
the
material
this
Do
not
entire
contents
throughout
equipment.
trained
aiiow
untrained
distributor
your
This
and
experienced
MANUAL
of
this
the
manual,
persons
if
you
manual,
unit
do
before
and
in
the
to
instaii,
not
with
these
safe
fully
ERICOfi
fastening
Systems
PRINTED
IN
U.S.A
Page 2
Page 3
RECEIVING-HANDLING
OM-125
878
11/89
Before
age
claims
Assistance
from
ers
When
ways
Number.
unpacking
that
may
for
loss
the
distributor
Transportation
requesting
provide
Section
SECTION
for
the
have
or
filing
1-1.
1-2.
1-3. 1-4.
equipment,
occurred
or
settling
and/or
with
the
damage
Department.
information
Model
Description
No.
-
SAFETY
1
Introduction General
Arc
Welding
Standards
carton
check
during
shipment.
the
delivering
claims
equipment
about
this
and
RULES
Precautions
Booklet
for
any
be
may
obtained
manufactur-
equipment,
Serial
TABLE
FOR
Index
dam-
File
any
carrier.
al
or
Style
OF
OPERATION
Use
the
tion
mation
Model
Serial
DateofPurchase
following
Serial
and
is
located
_______________________________
or
Style
CONTENTS
ARC
OF
spaces
or
on
No.
WELDING
Style
the
____________________
_____________________
record
to
Number
data card
POWER
the
of
your
or
Page
SOURCE
Model
unit.
the
nameplate.
No.
1 I
4
5
Designs-
The
infor
SECTION
SECTION
SECTION
SECTION
2-1.
2-2.
3-1.
3-2.
3-3.
4-1.
4-2.
4-3.
4-4.
5-1.
5-2.
5-3.
5-4.
5-5.
5-6.
5-7.
2-
SAFETY
General
Safety
3
SPECIFICATIONS
Volt-Ampere
Duty
Cycle
Description
4
INSTALLATION
Location
Weld
Current
Electrical
OPERATOR
5-
Power Pilot
Light
Range
Current Remote
Remote
Control
Arc
PRECAUTIONS
Information
Alert
Symbol
Curves
Connections
And
Contactor
Connections
Input
CONTROLS
Switch
Switch
Adjustment
Control Control
Receptacle
Receptacle
Switch
And
Safety
And
Signal
Control
Control
AND
SIGNAL
Words
Connections
Current
And
And
Contactor
WORDS
Control
Control
Switch
Switch
6
6
7 7 8
8
8 9
9
11
11 11
12 12
12
13
SECTION
6-1.
6-2.
6
SEQUENCE
Stud
Shutting
Welding
Down
OF
OPERATION
13
14
Page 4
-I
Section
SECTION
SECTION
SECTION
No.
7
7-1.
7-2. 7-3. 7-4.
8
Diagram Diagram Diagram
9
Figure
MAINTENANCE
Routine
Rectifier
Ovetload
Maintenance
Protection
Protection
Troubleshooting
Diagram Diagram
Diagram
Front
Card,
Side
DIAGRAMS
-
W/Components
View
ELECTRICAL
Circuit
8-1.
Circuit
8-2.
Circuit
8-3.
Feedback
PARTS
9-1.
Panel,
Circuit
9-2.
9-3.
Right
LIST
&
TROUBLESHOOTING
For
Root
For
3-Phase
Burden
Root
Board
Pass
Pass
PC2
Circuit
Board
PCI
Page
No.
14 14 14
15
17
18
19
20
22 24
Table
Chart
Chart
Table
Table
Table
Table
3-1.
Specifications
3-1.
Volt-Ampere
3-2.
Duty
Cycle
4-1.
Weld
Cable
4-2.
7-1.
7-2.
Conductor
Input
Maintenance
Troubleshooting
LIST
Curves
Size
And
Schedule
OF
CHARTS
Fuse
Size
AND
TABLES
7
7
8
9
11
14
16
Page 5
SECTION
1
-
SAFETY
RULES
FOR
OPERATION
OF
ARC
WELDING
POWER
SOURCE
1-1.
INTRODUCTION
We
learn
sonal
harmful,
ers
Safe
welding
search,
evolved
tion,
by
experience,
wasteful,
teach
you.
practices
and
development,
reliable
and
servicing
equipment
the
for
son
Some
technical rules.
Read
tempting Comply
ticular
personal
Failure
ous
based
are
volumes
understand
and
to
with
equipment
safety
observe
to
or
equipment
These
1-General
ting;
Reference
are
cedures
in
most
The
Health
inspection
ment
1-2.
DIfferent
and
radiation
manual,
facturers
specific
safe
Precautions,
and
2-Arc
available
also
than those
Standards
the
complete.
National
Administration,
requirements
installation,
GENERAL
arc
fluxes
levels.inadditiontothe
be
Material
technical
concerning
A.
Burn
Prevention
Wear
protective
in
use
welding,
shirt
collar
and
to
avoid
entry
Wear
helmet
shields
underneath,
(protected
experience.
child
like
a
unwise.
and
developed
described
cutting
are
and
equipment
practices.
is
improperly
safe
practices
on
install,
these
used
and
death.
be
can
practices
Welding
standards:
for
indexinthis
Electrical
use,
PRECAUTIONS
welding
can
produce
to
sure
used
common
to
explain.
these
operate,
procedures
and
the
for
safe
these
When
with
used
are
common
(and
Published
additional
in
given
Code,
local
also
and
processes,
consult
Safety
data
and
their
material.
clothing-gauntlet
and
hat,
pocket
of
sparks
with
high
flaps,
and
goggles
appropriate
clear
by
cover
Learning
safety
touching
the
Let
from
and
may
sense,
safe
or
their
experience
experience
in
this
field
experience
safe
installation,
Accidents
maintained.
or
not
always
others
Itiswiser
practices
service
as
applicable
instruction
others.
of
practices
becomes
confidence.
divided
to
into
arc
Cutting)
Standards
and
more
this
manual.
manual.
ANSI
Occupational
industrial
provide
service.
different
flux
Data
a
electrode
fumes,
informationinthis
and
electrode
Sheets
precautionary
gloves
safety-toe
and
wear
slag.
and
glasses
filter
glass).
This
through
hot
a
in
the
manual.
occur
be
may
follow
to
before
the
equipment.
to
manuals,
cause
may
a
habit,
Sections:
two
welding
(only).
on
complete
are
They
Z49.
Safety
basis
and
for
gases,
codes,
(MSDS5)
measures
designed
shoes.
cuff
less
lenses
is
a
or
MUST
per
stove
of
oth
of
use
Re
have
opera
when
The
rea
require
the
at
the
par
for
seri
the
cut
and
safety
pro
listed
1
is
the
and
local
equip
alloys,
and
manu
for
for
Button
with side
plates
for
weldingorcutting,
from
radiant
when
is
glass
Avoid
Hot
metal
should Medical
a
qualified
shift
unless
treatment
Ear
plugs
in
confined
a
others
Flammable
sons
intending
B.
Toxic
Severe
fumes,
that
welding
adequate
Z49.1
oxygen.
Lead
-,cadmium-,
and
ing
harmful
duce local
exhaust
the
area as
plied
respirator.
Metals
fumes from
the
necessary,
Work
if
and,
tor.
leaks
Gas
Leaked
centration
confined
Leaving
to
prevent
downstream
left
open.
re-entering
Vapors
the
by
The
ucts.
decompose
vapors
solvent
atmosphere
(and
energy
broken,
or
oily
greasy
such
be
never
first
aid
first
medical
of
flash
should
work
space.
overhead.
hair
Fume
discomfort,
vapors,
(or
ventilation,asdescribed
in
listed
and
pitted,
clothing.
electrode
as
handled
and
aid
eye
person
facilities
burns
be
worn
A
treatment.
preparations
weld
to
heat,
cutting)
Standards
or
Prevention
illnessordeath
or
oxygen
may
zinc-,
similar
coated
should
in
necessary,
materials,
concentrations
ventilation
wellasthe
with
not
work
surface,
while
confined
a
in
a
in
large
gas
For
beryllium,
or
containing
be
heated
the
wearinganair-supplied
space
while
wearinganair-supplied
confined
quantities
dangerously.
space.
confined
possible
Checktobe
from
heatofthe toxic
ultraviolet
space,
accumulation
valves
it.
chlorinated
arc
and
gas,
have
sure
(or
other
(radiant)
trichloroethylene
form
to
vapors
phosgene.
be
can
where
or
drawn
the
chipping)
flying
or
without
to
protect
metal.
spattered.
A
spark
may
stubs
and
gloves.
First
shouldbeavailable
closebyfor
are
of
the
when
hard
hat
should
cut.
produce.
Index.
mercury
when
must
operator
unless
area
only
space
Do
not
shut
been
that
solvents
flame)
lung
energy
DO
radiant
and
eyes
working
should
not
can
enrichment
Prevent
in
NEVER
-,and
welded
of be
both
(or
fumes.
toxic
used,or
must
wear
must
materials
coating
is
well
ventilated
whileitis
should
can
change
bring
gas
OFF
of
gas
gases
supply
accidentally
the
space
be
can
form
to
and
eye
of
and
perchloroethylene
WELD
NOT
into
the
welding
energy
OM-125
the
eyes
1
-3A.2.
ignite
cover
them.
Replace
See
workpieces
aid
facilities
skin
overhead
on
be
worn
be
used
result
or
ANSI
ventilate
and
for
each
immediate
burns.
or
when
by
per
from
depletion
them
with
Standard
with
beryllium-bear
cut)
may
pro
Adequate
each
be
that
person
an
used.
emit
is
removed
in
air-sup
toxic
if
and
respirator.
ventilated
being
respira
be
avoided.
at
source
the
space
opened
safe
before
con
into
a
if
or
oxygen
cylinders
in
is
decomposed
PHOSGENE,
irritating
the
arc
can
cut
or
or
can
penetrate
676
a
prod
also
where
cutting
1
Page
Page 6
to
atmospheres
trichioroethylene
C.
Fire
and
Causes
by
rial;
short
BE
through
and
goggled
To
Keep
and
cause
If the
Avoid
lators.Ifthe
at
protect
fire-resistant
Walls
not
work
shields.
Fire
guishing
of
fire
the
AWARE
flame,
arc,
misuse
circuits.
cracks,
through
operator.
prevent
equipment
electrical
(in
short
combustibles
if
work
paint
35
least
against
touching
be
welded
should
watcher
equipment
ingorcutting
a.
appreciable
containing
or
Explosion
and
explosion
flying
of
compressed
THAT
flying
along
wailorfloor
Sparks
fires
and
clean
parts)
circuits.
are
practicable,
rooms,
spray
cannot
work
feet
away
ignition
covers
combustibles
on
(or
be
protected
be
must
if:
construction)
b.
appreciable
feet
but
can
c.
openings
within
(concealed
35
feet
d.
combustibles
metal
Hot
work
ensure
have
been
After
work
glowing
An
empty
produce
be
never
been
cleaned
7
In
Standards
This
includes:
solvent bles
solubility)
trogen
OM-125
676
or
conducted
permit
supervisors
embers,
container
flammable
welded
water
or
carbon
or
partitions
should
taken.
is
done,
and
on
describedinAWS
as
Index.
a
thorough
washing,
followed
dioxide,
2
Page
heat.
minute
even
perchioroethylene.
Prevention
combustibles
are:
sparks,
sparks
openings,
and
hot
slag
gases
or
falling
through
slag
or
and
cylinders;
windows
of
out
can
fly
heated
slag
explosion:
of
and
operable,
metallic
of
area,
to
an
dip
be
moved,
of
reach
with
shields.
Walls,
do
area
tanks,
suitable
on
in
out
or
cut).
by
standing
during
combustibles
are
combustibles
be
by
and
within
ignited
orvisible)
may
expose
adjacent
can
be
obtained
approvalthat
check
that
flames.
that
held
combustibles,
toxic
or
vapors
or
cut,
steam
unless
depending
by
purging
and
free
particles
NOT
weld
free
combustibles.
of
storage
combustibles
move
of
sparks
and
opposite
ceilings,
heat-resistant
with
for
some
and
suitable
time
(including
35
feet
further
are
sparks
by
in
floors
combustibles
to
walls,
ceilings,
be
ignited
before
adequate
is
area
orcaustic
using
free
when
container
Standard
the
on
and
inerting
protective
heated,
cleaning
reached
mate
pass
or
doors,
of
grease,
that
Move
venti
heat;
of
and
the
can
or
amounts
can
sight
35
feet.
oil,
cut.
or
areas,
and
snug-fitting,
sides
should
floor
near
covers
fire
afterweld
or
extin
building
than
35
orwalls
to
roofs,
radiant
by
operation
or
to
precautions
of
sparks,
that
or
A6.O,
must
has
first
listed
(or
combusti
with
can
a
ni
equip-
ment
working
A
(see
smell
Hollow
weldingorcutting.
Explosive
may
as
D.
Standard
manual,
HANDLING
DERS,
1.
Regulator
regulator
any
with
Never
other
Remove
pair
indicate
Leaks-if
Excessive with
Faulty
when release.
Repair.
for where
recommended
as
level
container
with
preceding
or
sight
castings
atmospheres.
contain
flammable
gasoline).
Compressed
precautions.
and
those
OF
listed
Pressure
relief
from
downstream
oneormore
connect
than
that
close
(first
a
faulty
gas
Creep-if
downstream
Gauge-if
pressurized,
Do
NOT
to
special
substitute
may
unknown
paragraph).
determineifit
to
or
They
Gas
detailed
COMPRESSED
ii
Standards
in
Regulators
valve
overpressure;
equipment.
relief
a
regulator
for
which
regulatorfrom
cylinder
regulator:
leaks
externally.
valve
gauge
nor
attempt
manufacturers
techniques
personnel.
2.
Cylinders
be
damage
electrical
electrical
rails,
short
(See
DOT
or
marked
name,
and
Keep
MT;
keep
must
their
to
circuit
circuit
1-3C.)
marking
of
content.
gas
on
them;
supplier
number,
hazardous.
valves
them
Cylinders
and
Avoid third
produce
dent.
ICC
assurance
dled.
Identifying
gas
content.
alter
or
is
illegal
Empties:
mark
promptly.
in
A6.O.
contents
Do
containers
can
Never
dust,
Equipment
in
is
designed
devices.
to
the
valve).
delivery
closed.
pointer
returns
to
repair.
and
handled
walls,
valves,
contact
or
wires,
that
arcs
be
must
when
the
Use
only
do
not
rely
if
unmarked.
other
or
closed,
separate
Waterfilling
for
inerting.
should
NOT
depend
safetoweld
is
be
must
just
be
on
vented
explode.
weld
or
gas,
with
CGA
Standard
GASES
Index.
it
is
not
Provide
a
cylinder
regulator
service
The
pressure
does
to
stop
Send
designated
tools
carefully
with
welding
lead
may
each
on
where
cut
or
liquid
vapors
precautions
P-i,
IN
to
protect
such
to
protection
intended
containing
was
designed.
immediately
following
not
pin
symptoms
continues
off
move
after
regulators
used
are
or
to
prevent
by
devices:
cylinders
circuits.
to
serious
a
They
cylinder.
cylinderisproperly
color
NEVER
FULLS
with
to
identify
a
on
cylinder.
caps
and
securely;
cylinders
on
markings
replace
from
below
cleaned
of
sense
cut.
or
before
the
air
(such
in
this
SAFE
CYLIN
the
only
protect
gas
for
re
to
rise
pin
stop
pressure
center,
trained
leaks
including
can
acci
It
is
an
han
of
name
gas
DEFACE
It
return
Page 7
Prohibited
than
other roller.
Locate
over.
or
Passageways
where
areas
Transporting
such
port
the
ground
or
magnets.
NOT
Do
and
slag,
low
contents
such
where
Protect
falling
when
Stuckvalve.
cylinder
your
Mixing
Never
cylinders
objects,
moving
valve
supplier.
gases.
refill
Cylinderfittings
Hose
3.
Prohibited
the
for is:
specified
for
red
Never
use.
intended
its
secure
and
they
cylinders.
as a
platform
their
by
expose
flame,
to
exposure
etc.
exceed
and
cylinders.
NOTuse
Do
that
Never
cylinder.
any
should
Never
use.
gas.
fuel
gas,
cylinders
may
cylinders
particularly
gases.
Use
ferrules
wire
nary hoses
No
copper
to
tings
Avoid hose
oft
or
on,
Coil
excess
Protect
sparks,
Examine
nections. dicate
(1-2D3).
ing
4.
Proper
Clean
orif
ices
or
other
or
to
fittings.
tubing
splice
runs
long
ground
otherwise
hose
hose
from
and
slag,
hose
Immerse
leaks.
orwom
leaky
Do
Connections
cylinder
and
for
hydrogen,
clamps
splices.
hose.
to
to
damaged.
to
open
regularly
NOT
valve
use
a
cylinder
NEVER
use,
so
they
work
areas.
be
struck.
With
a
crane,
cradle.
or
valves
can
green
or
caps,
to
that
exists.
weather.
try
never
use
A
cause
may 130F.
valves
a
hammerorwrenchtoopen
be
not
mix
to
be
hose
general
for
oxygen,
designed
substitute)
Use
prevent
keep
prevent
pressured
hose
kinks
it
from
flame.
for
leaks,
by
kinks
by
hose
cutting
tape.
of
outlet
before
seats
crack
valve
its
or
as
cannot
Keep
cylinders
use
a
NOT
Do
excessive
or
lift
chains,
by
heat,
rupture.
Cool
with
from
Replace
opened
any
modified
other
hose
for
as
only
being
sharp
impurities
caps
by
gases
or
than
that
identification
and
black
hose
the
a
binding
standard brass
and
abuse.
run
over,
and
tangles.
and
wear,
in
water;
out
area
that
connecting
momentarily,
contents
a
support
be
knocked
clear
secure
sup
cylinders
slings,
sparks,
Do
not
water
spray
bumps,
falls,
securely
hand.
in
a
cylinder.
exchanged.
designed
rule
for
inert
ordi
(not
to
connect
Suspend
stepped
and
loose
con
bubbles
and
splic
clog
may
regulator.
pointing
for
or
of
off
al
fit
by
in
a
outlet
away
withaclean
Match
that that
CONNECT
gases
Tighten
nections,
Tighten. retighten
Adapters. plier)
use
LEFT
by
5.
fore
justing
to
regulatortocylinder.
the
regulator
the
regulator
to
a
cylinder
connections.
clean
If
connection
using
Use
between
two
wrenches
HAND
Regulator
right
(with
outlet
hand
grooved
Pressurizing
Drain
regulator
opening
screw
sive
compression
seat
to
open
engaged
Stand
Open
creases
reaches
seal
less
Use safe
slightlyonsingle-stage
side
to
cylinder
slowly.
regulator
position:
stem
than
one
pressure
and
efficient,
regulators.
Check
there-after.
uid*
leak.
bust
E.
Remove
mediately
in
F.
Close
G.
Rope
cutting
*Trademark
for
leaks
Brush
or
equivalent
oft
Clean
ible.
User
ResponsibilItIes
leaky
for
equipment
LeavIng
gas
Rope
Staging-Support
staging-support
operation;
from
people
lintless
a
cloth.
label
inlet
and
regulator
designed
and
containing
When
and
smooth
leaks,
properly
CGA
a
cylinder
threads.
(or
threads
hex
adapter
to
tighten
hose)
for
nut
on
fitting
and
Steps:
residual
of
cylinder
in
on
of
valve
(or
(clockwise).
heat
at
pressurization.
regulator
When
gauge
maximum)
For
oxygen,
against
possible
turn
to
charts
recommended
on
with
per
soapy
defective
or
See
repair.
manual.
(available
first
soap
water
EquIpment
at
source
should
rope
may
of
Proctor&Gamble.
and
sources
Before
cylinder
cylinder
any
of
connecting,
marking
outlet
for
a
particular
other
assembling
seats
where
disassemble,
wrench.
(available
if
marked
and
for
valve)
Leave
one
may
left
fuel
suitable
prevents
seat
adjusting
regulator,
adapter
connections oxygen
or
shank)
through
gas
manifold
Draining
high
pressure
regulators.
while
opening
that
so
is
leave
and
leak.
quick
from
inert
regulator
pressurized
cylinder
gases,
For
fuel
emergency
your
pressure
pressurization
solution
of
after
equipment
User
Unattended
and
burn.
(capfull
test;
Bubbles
dried
from
water).
Responsibility
drain
gas.
be
used
not
OM-125
ignition.
check
area,
match.
NEVEIR
gas
gas.
threaded
necessary.
clean,
from
your
is
required.
RIGHT
identified
be
hand
threads
gas.
vent
turning
by
exces
by
allowing
cylinder
pressure
(gauge
valve
open
open
gas,
shutoff.
supplier)
settings
and
regularly
of
Ivory
indicate
is
soap
service
statement
for
welding
676
Wipe
and
or
con
and
sup
arid
be
ad
screw
valve.
in
in
fol
fully
to
for
on
LJq
corn-
irn
or
3
Page
Page 8
1-3.
Comply
Arc
Welding,
careless
high
bright
frared
pressed
unnecessary accidents.
dards
A.
Burn
The
welding
can
from
Skin
shielded
BURNED;
1.
Protective
Wear
in
arc)
essary,
leatherjacket
sistant
ton.
Bare Button
to
ets
2.
Eye
Protect
electric
Welding
12
no.
face
before
Protect
Cracked
worn;
Cracked,
IMMEDIATELY.
pitted,
Flash
the
helmet
helmet
struck.
eyes
cause
area
3.
Protection
Enclosed
rate
room
round
ble
screens
ticularly
OM-125
WELDING
ARC
with
precautions
operator
currents
and
hot.
energy
gases
risks
Precautions
referenced
Protection
with
precautions
arc
eyes,
light-colored
resemble
burns
arcs
COMPLY
long-sleeve
addition
use
or
leggings.
skin
protection.
collar
to
prevent
and
Head
from
eyes
without
arc
helmet
denser
or
striking
filter
plate
broken
or
radiation
broken,
or
spattered.
goggles
to
give
be
not
Looking
(particularly
retinal
a
in
the
field
welding
or
enclosed
the
operation
or
floor
at
676
Page
properly
invites
at
significant
Sparks
fly,
radiates,
be
may
and
in
index.
is
intense
penetrate
surfaces,
acute
are
more
WITH
Clothing
clothing
to
gloves,
additional
sleeves,
Avoid
outer
Wear
protect
entry
chest
of
sparks.
Protection
exposure
protection.
shield
or
be
must
arc.
withaclear
helmet
can
pass
loose
or
Replace
with
side
some
lowered
at
an
arc
a
high
burn
that
of
vision.
of
area.
bay
with
panels.
4
Allow
level.
in
done,
trouble.
1-2,
1-1,
isasafe
The
equipment
voltages.
fumes
weldments
used.
protects
are
in
and
rise,
The
wise
himself
described
1-2.
visibly
are
bright.
lightweight
and
burn
the
sunburn,
severe
and
painful.
PRECAUTIONS.
(particularly
shoes
and
hat,
protective
flame-proof
clothing
apron,
garments
substantial
dark,
and
neck
arc.
when
cover
shield
to
plates
cover
MUST
to
face
NEVER
a
welding.
plate.
cause
plate
the
to
containing
used
or
through
filter
clear
shields
protection
the
over
momentarily
intensity
may
Personnel
For
gas-shielded
leave
a
production
is
best.
In
low-reflective,
for
free
air
this
and
section.
process,
carries
The
ultraviolet
hot,
operator
and
here
clothing,
skin
those
arc
and
others
in
and
Its
radiation
and
from
is
and
avoids
reflect
DONT
for
gas-shielded
-2A).
As
(1
such
andfire-re
of
untreated
clothing.
and
button
look
fifter
plate
shade
Place
should
must
eyes
before
with
NOT
bums.
be
replaced
when
broken,
be
worn
under
should
an
arc
unprotected
arc)
permanent
welding,
open
non-combusti
a
areas,
sepa
circulation,
but
very
in
com
from
stan
eyes.
gas-
GET
nec
as
cot
pock
at
an
over
be
the
is
can
dark
sur
par
a
trical
workpieces,
Arc
the
grounded
And
When
welding
culatorto
quate
Viewing
who
Others
flash
Before
bay
B.
Comply
Generator
air.
C.
Comply
the
will
be
working
goggles.
starting
doors
Toxic
with
Carbon
Fire
and
with
looking
are
Fume
engine
Equipments
equipment.
Loose
cause
Never
sel.
ture
D.
Comply
E.
Exposed
ing
ment
conductor.
TOUCH
cable
fire.
a
strike
It
creates
leadtosuch
or
Compressed
with
Shock
hot
can
or
fatally
DO
wet
a
circuit,
protection.
To
protect
Wear
body
adequate
duckboard,
dry
can
tween
metal able
through
A
voltage
ducting
ing
objects
metal
1.
against
dry
insulating
and
clothing
insulation
be
not
avoided.
body
reduces
dangerous
the
will
include,
tools,
workbenches,
Grounding
welding
National
according
Cutting.
installing,
power
the
to
carry
weld.
Provide
directly
in
area.
to
weld,
closed.
Prevention
precautions
exhaust
monoxide
can
ExplosIon
precautions
rated
capacity.
It
overheat
may
connections
arcona
an
brittle
a
area
a
rupture
Gas
precautions
Prevention
conductors
in
ungrounded,
shock
a
NOT
STAND,
surface
shock:
gloves
Never
dry.
against
rubber
or
Sweat,
and
an
electrically
the
electrical
and
possibly
body.
exist
between
in
the
work
but
are
etc.
Never
unless
the
the
Equipment
equipment
Electrical
ANSI
to
connect
source,
building
ground
control,
ground.
currents
face
shields
the
at
See
make
all
that
sure
1
in
-2B.
be
must
kill.
Prevention
in
1-2C.
Do
not
cables
overheat
may
that
or
can
under
cylinder
Equipment
1
-2D.
in
other
or
bare
electrically-HOT
person
when
whose
SIT,
welding,
and
body
work
electrical
when
mat
sea
HOT
resistance,
lethal
the
electrode
circuit.
not
limited
water,
welding
touch
the
welding
must
be
grounded
the
and
Z49.1
frames
Code,
worktable,
Conductors
safely.
for
weld.
persons
that
screen
ventedtothe
overload
and
cause
or
other
pressure
a
cause
rough
metalinthe
body
LEAN
LIE,
without
protection.
in
damp
shock.
dampness
moisture
or
or
part
and
and
Examples
to,
buildings,
source
power
electrode
power
source
according
the
work
Safety
of
each
and
must
Equipment
all
persons
are
wearing
flaps
outside
arc
welding
fire.
a
flash
and
ves
violent
nip
handling.
weld
equip
becomes
OR
ON,
suitable
Keep
without
area
on
Stay
sweat
or
be
grounded
could
en
flow
to
con
any
of
conduct
elec
cases,
and
any
is off.
be
must
In
Welding
unit
such
as
cir
water
be
ade
made
or
a
a
to
Page 9
Do
HOT
NOT
ANY
electrically
tally. carrying
Three-phase
equipment
available,
wires
ment ment
that
tion
Before conductors
frames
If
line
a
equipment
ground
plug
ceptacle, ground
prong
Never
plug
Electrode
2.
Fully
NOT
Connectors
3.
Fully
welding
join
4.
Cables
Frequently
IMMEDIATELY
or
damaged
from
taped
Keep
from
5.
Terminals
Terminals should
Electrode
6.
a.
before
connect
of
the
ground
will
become
can
welding,
connections.
at
cord
for
leadtothe
added
is
the
prong
plug,
remove
broken
with
a
insulated
holders
use
insulated
inspect
bared
cable.
to
give
cable
metal
hot
and
have
Equipment
3-phase
are
connect
cable
dry,
insulating
Welding
metal
welding
mally
oft
controlofthe
equipped
cally
and
touch
in
ject
the
welding
b.
Equipment
contactor)
by
GROUND
or
gas
connection.
electrical
to
flammable
Check
current
stray
installing,
single-phase
Do
line.
third
to
the
lead
electrically
shock,
possibly
check
touching
with
a
connection
grounded
connection
for
If
only.
the
off
Holders
electrode
with
lock-type
ground
the
to
ground
fatally.
bare
lead
to
a
switchbox.
must
lead
line
a
grounded
prong
holders
protruding
connectors
lengths.
cables
REPLACE
insulationtoavoid
Cables
resistance
freeofoil
and
And
other
power
arc
welding
are
equipped
for
wear,
those
with
equivalenttooriginal
and
sparks.
Other
Exposed
exposed
covers
with
output
sources
(GMAW),
and
with
welding
the
electrode
HOT
when
the
with
power
gun
wire
the
source
output
the
the
contact
welding
electrode
power
without
shock,
may
conduit,
such
liquid
phase
If
only
as
requirements
3-phase
equipment
NOT
connect
or
wire,
(live)
HOT-a
to
cord
dangerous
for
continuity.
metal
switchbox,
a
be
of
is
provided
II
a
grounded
connected
comes
connect
with
mating
from
a
plug,
prong.
should
screws.
cracks
with
be
should
and
excessively
possibly-lethal
damaged
grease,
parts
secured
on/off
for
similar
devices
power
wire
switch
or
electrode
areas
and
Parts
of
electrical
before
control
use
gas
processes
that
output.
becomes
source
is
closed.
conducting
any
off.
is
on/off
with
tungsten
switch
ciltuit
I
a
power
only
equip
equip
condi
Be
a-
pipe
of
is
two
sure
possibly
orto
oilorfuel.
to
the the
equipment
the
with
the
three-prong
to
three-
a
re
the
receptacle.
a
use
or
Do
used.
used
be
to
damage.
worn
shock
be
may
cable.
protected
units
operation.
(contactor)
the
gas
arc
nor
on
permit
When
so
electri
ON
is
Never
ob
unless
control
(no
Welding
metal
esses
output
ment
power
electrode
off.
7.
Safety
should
Before
shut
switches)
tag
Disconnect
all
pull
Do
not
If,
ing.
against
Leaving
disconnect
Power
welding
F.
ProtectIon
port
Magnetic
operation.
equipment
before
Devices
devices
be
not
installation,
OFF
all
power
all
115
volts
open
power
in
an
emergency,
shock
equipment
all
disconnect
power
DevIces
fields
Persons
(pacemaker)
going
operations.
1-4.
STANDARDS
For
more
information,
their
latest
revisions
ANSI
Standard
1.
CUTTING
Society,
2.
NIOSH,
GAS
AND from
the
ernment
3.
OSHA,
29CFR
1910,
Documents,
Washington,
4.
ANSI
Standard
OCCUPATION
FACE
PROTECTION
National
NY
York,
ANSI
5.
6.
Standard
SAFETY-TOE
American
New
way,
ANSI
Standard
OF
USE
power
arc
may
on-off
electrode
the
switch
such
disconnected
sources
welding
be
not
control
is
turned
unless
interlocks
as
equipped
is
the
or
inspection,
and
remove
to
prevent
cables
line-cord
burns,
power
source.
For
accidental
from
welding
circuit
or
it
must
flash
or
unattended.
to
equipment.
switch
must
Wearers
change
(Pacemakers)
from
high
wearing
should
near
arc
welding,
BOOKLET
refer
to
and
complyasapplicable:
LeJeune
AND
SAFETY
from
HEALTh
AND
obtainable
N.W.
550
SAFETY
WELDING
Z49.1,
Superintendent
Printing
SAFETY
Standards
10018.
National
York,
CUTTING
Office,
AND
obtainable
Government
U.S.
D.C.
20402.
Z87.1,
AND
obtainable
Institute,
Z41.1,
FOOTWEAR
Standards
NY
10018.
Z49.2,
AND
EDUCATIONAL
FIRE
used
with
similar
and
with
welding
ON.
and
shunted
service,
line
fuses
With
HOTwhen
Never
power
circuit
out.
of
(or
devices.
electrically
welding
or
turning
power
polarity
be
disconnected,
from
switch
Always
be
of
Electronic
can
electronic consult
gouging,
INDEX
the
following
the
Ad,
shut
available
affect
with
or
IN
WELDING
American
Miami,
IN
ARC
CUTTING
of
Documents,
Washington,
HEALTh
from
the
STANDARDS,
Superintendent
Printing
SAFE
STANDARD
1430
obtainable
Institute,
PREVENTION
WELDING
PRACTICES
from
the
Broadway,
PROCESSES
OM-1
shielded
proc
power
such
equip
touch
source
breakers
equipment,
lockorred-
ON
of
power.
source,
while
and
weld
guard
arcing.
OFF
and
near
Life
Sup
pacemaker
life
support
doctor
their
welding
spot
standards
AND
Welding
FL
33126.
WELDING
obtainable
U.S.
Gov
D.C.
20402.
Office,
FOR
EYE
AND
American
New
FOR
MENS
from
1430
Broad
IN
THE
25676
Pago
the
the
is
the
or
of
the
5
Page 10
obtainable
Institute,
7.
AWS
CONTAINERS
TIBLES
NFPA
8.
TEMS
PROCESSES
Protection
02269.
MA
NFPA
9.
CODE
Association,
02269.
NFPA
10.
PROCESSES
Protection
MA
11.
CGA PRESSED
1430
Standard
obtainable
N.W.
550
Standard
FOR
Association,
Standard
obtainable
Standard
Association,
02269.
Pamphlet
from
the
American
Broadway,
A6.0,
WHICH
from
LeJeune
OXYGEN-FUEL
51,
WELDING,
obtainable
70,
from
Batterymarch
51B,
obtainable
SAFE
P-i,
GASES
IN
National
New
York,
WELDING
HAVE
the
Rd,
AND
HELD
American
Miami,
CUTTING,
from
the
Batterymarch
NATIONAL
the
National
Fire
Park,
CUTTING
from
AND
the
Batterymarch
HANDLING
CYLINDERS
Standards
NY
10018.
CUTTING
COMBUS
Welding
FL
33126.
GAS
SYS
AND
ALLIED
National
Park,
Quincy,
ELECTRICAL
Protection
Quincy,
WELDING
National
Park,
Quincy,
OF
COM
obtainable
So
Fire
MA
Fire
fromtt,e
Davis
son
12.
CSA
WELDING
nadian 178
M9W
NWSA
13. PHY
Association,
19103.
14.
American
RECOMMENDED
PREPARATION
CONTAINERS
OF
HAZARDOUS
American
Miami,
15.
ANSI
TORY
can
New
Con~ressed
Highway,
Standard
AND
Standards
Rexdale
1R3.
Boulevard,
booklet,
obtainable
Welding
Welding
FL
33126.
Standard
PROTECTION,
National
NY
York,
Gas
Suite
W117.2,
CUTTING
Association,
WELDING
from
the
Arch
1900
Society
SAFE
FOR
WELDING
AND
SUBSTANCES,
Society,
Z88.2,
Standards
10018.
PRACTICE
obtainable
Association,
501,
Arlington,
CODE
Rexdale,
National
Street,
FOR
obtainable
Standards
Ontario,
SAFETY
Philadelphia,
Standard
PRACTICES
PIPING
THAT
obtainable
N.W.
550
Institute,
1235
VA
SAFETY
from
BIBLIOGRA
Welding
AWSF4.1,
FOR
AND
CUTTING
HAVE HELD
LeJeune
FOR
RESPIRA
from
the
1430
Broadway,
Jeffer
22202.
the
Ca
Sales,
Canada
Supply
THE
from
the
Rd,
Ameri
IN
PA
2-1.
GENERAL
A.
General
Information
bels,
tags,
design,
troubleshooting
followed The
nameplate
labeling
at
pear
B.
Safety
The
installation,
shooting
and
procedures
safety
stalled,
sons
codes
of
Section
Power
ing
presented
and
plates
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for
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of
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front
the
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arc
of
others.
operated,
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1
Safety
Source.
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safe
this
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Therefore,
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SECTION
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in
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the
on
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unit
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panel
sectioninthe
equipment
ensure
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not
Rules
For
2-
SAFETY
SAFETY
AND
manual
unit
andonvarious
pertainstoequipment
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use
The
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text.
this
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symbols
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personal
this
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istobe
onlybyqualified
manual
those
to,
Operation
all
and
listedatthe
Of
PRECAUTIONS
la
and and
for
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ap
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practices
the
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per
applicable
end
Arc
Weld
SAFETY
2-2.
WORDS
The
following
used
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tify
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words tion
a
a
IMPORTANT
necessary
ment.
AND
SIGNAL
ALERT
safety
this
levels
This
WARNING the
to
WARNING
practices
ous
personal
CAUTION
statements
for
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of
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equipment.
instructions
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SIGNAL
are
iden
signal
atten
or
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or
minor
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OM-125
676
Page
6
Page 11
Rated
Current
25%
At
Welding
Amperes
Duty
2000@
60
Volts
Cycle
Welding
Current
In
Amperes
30-415 ~
SECTION
Table
Max.
Open-
Circuit
Voltage
100
3-
SPECIFICATIONS
3-1.
SpecifIcations
At
Input
Load
60HzThree-Phase
Amperes
200VI230V
I
632
550 275
Rated
At
I
460V
I
kva
219
kw
153
Net
1011
(459
lbs.
kg)
1136
(515
-
Ship
lbs.
kg)
100
90
80
70
~60
~50
~40
30
20
10
3-1.
VOLT-AMPERE
The
volt-ampere
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capabilities
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In.
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1200
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show
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the
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2000
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voltage
power
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Dimensions
2400
3-1)
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at
180
the
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And
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curves
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determine
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3-2.
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The
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of
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minutes,
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Page
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possible
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676
Page 12
2400
2000
1000
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with
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DESCRIPTION
unit
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current
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power
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LOCATION
4-1.
CAUTION:
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WELD
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ca
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for
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to
Page 13
Table
4-1.
weld
Cable
Size
.
~
100 150 200
250
300
350
400
500 600 700
800 900
cable
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mils
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A~
1.
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IMPORTANT:
polarity.
connections
positive).
4-3.
NECTIONS
IMPORTANT:
on
put
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tion
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per
Installation
WARNING:
Shutdown
nect
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locking removing
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3 3
2
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live
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To
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INPUT
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touch
welding
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WARNING:
procedures
Lockout/tagging
line
locking
removing
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CAUTION:
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unit.
Position
voltage
Store
minals.
three-phase,
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source
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than
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ter
which
of
the
input
Page
-
9
Page 14
label.
data
question
the
welding
B.
Available
This either low
on
installation
Open
cable
match
input
about
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power
Matching
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unit
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OM-125
676
Page
VIEW
SIDE
RIGHT
10
4-2.
Input
Conductor
Connections
Page 15
C.
Welding
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WARNING:
a
input
power
phase
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the
Table
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400
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suitable
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9.
deenergized
Secure
10.
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remaining
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fuses
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POWER
Pressing
the
OFF
the
welding
button
push
IMPORTANT:
ton
is
pressed,
does
not
run
warm.
only
Section
IMPORTANT:
POWER
The
operates
7-2).
switch
reenergize
SWITCH
POWER
power
unless
fan
when
the
source.
shuts
When
the
the
pilot
the
motor
additional
After
any
ON
push
welding
(Figure
switch
down
light
internal
is
thermostatically
interruption
power
5-1)
ON
push
Pressing
the
welding
POWER
comes
components
cooling
button
must
source.
button
the
switch
but
on,
is
of
input
be
energizes
POWER
source.
power
ONpushbut
the fan
are
already
controlled
required
power,
depressed
switch
motor
and
(see
the
to
5-2.
The
pilot
in
the
input
power.
5-3.
RANGE
The
tween
switch
rent
scaleisused
PILOT
ON
RANGE
light
position
the
two
in
is
the
LIGHT
comes
SWITCH
switch
coarse
LOW
JUSTMENTcontroI.
HI
the
RENT
current
scale
ADJUSTMENT
(Figure
whenever
on
and
indicates
(Figure
provides
output
position,
when
When
is
used
control.
5-1)
the
that
5-1)
the
means
ranges.
ensure
adjusting
inthe
HI
when
the
position,
POWER
the
unit
is
of
selecting
When
the
that
the
LOW
CURRENT
ensure
adjusting
OM-125
the
676
switch
is
receiviing
be
RAN(3E
cur
AD
that
CUR
11
Page
Page 16
I
Remoti
Current
And
Contactor
Control
Receptacle
Control
Arc
Contactor
Control
Switch
N.
Switch
Switch
Rang.
I
Current
Control
Switch
/
/
Current
Adlustmsnt
Control
Pilot
Power
Switch
Light
CURRENT
5-4.
(Figure
The
means
range
crease
IMPORTANT:
may
5-5.
RENT
If
tions
tacleasinstructed
When
RENT
MOTE
not
tion.
RENT
trol
When trol
OM-125
5-1)
CURRENT
of
being
the
be
adjusted
REMOTE
CONTROL
Remote
a
from
remote
CONTROL
position.
desired,
When
ADJUSTMENT
Remote
a
is
functioning
676
selecting
used.
current
The
CONTROL
Current
the
controltothe
control
Likewise,
the
switch
in
the
12
Page
ADJUSTMENT
ADJUSTMENT
the
exact
Rotate
output.
CURRENT
while
welding.
SWITCH
Control
in
Section
of
the
switch
must
STANDARD
control
Current
fine
a
as
current
the
RECEPTACLE
is
to
REMOTE
4-3.
current
must
if
Remote
a
be
on
Control
current
Positive
Ouput
control
desired
control
clockwise
ADJUSTMENT
be
used,
make
CONTROL
is
desired,
be
placed
Current
in
the
STANDARD
position,
the
is
front
being
only
panel
used,
adjustment
I
Weld
Terminal
CONTROL
within
to
control
CUR
AND
connec
recep
CUR
the
in
the
Control
the
CUR
will
the
for
5-1.
posi
con
con
FIgure
provides
the the
RE
the
in
is
Front
I
Negativ.
Terminal
Output
Panel
CURRENT
ing
power
JUSTMENT
the
at
mid-range
will
provide
adjustment
age
output
through
selected
trol
on
mum
position.
REMOTE
5-6.
TACTOR
a
Weld
View
ADJUSTMENT
source.
control
(from
for
the
use
is
desired,
the
welding
CONTROL
WARNING:
Do
Do
the
contactor
Do
clamp
When
STANDARD
the
present
the
as
position,
its
of
one
current
the
of
CONTROL
touch
not
touch
not
not
touch
at
the
the
CONTACTOR
the
at
welding
For
example,
the
on
mm.
to
half
range
remote
CURRENT
the power
SWITCH
ELECTRIC
live
the
is
energized.
stud
same
position,
weld
power
control
welding
the
max.
of
setting
if
the
power
Remote
positions)
the
welding
selected.
controlofthe
ADJUSTMENT
source
must
RECEPTACLE
(FIgure
SHOCK
electrical
weld
output
welding
time.
CONTROL
open-circuit
terminals
output
source
is
the
on
CURRENT
source
Current
fine
power
If
full
adjustment
current
be
set
AND
5-1)
kIll.
can
parts.
terminals
device
and
switch
voltage
for
energized.
weld
AD
is
Control
amper
source
range
con
maxi
at
CON
when
work
is
as
long
set
in
is
Page 17
IMPORTANT:
the
on
put
tactor;
trolled
tactor.
The
source
availability
if
nections structed TROL
push
will
trol
If
the
position.
will
nameplate
is
not
rather,
Rectifier
contactor
Remote
a
switch
button
available
be
switch
Remote
a
CONTACTOR
available
be
switchedon
enables
of
Contactor
the
to
in
Section
in
on
closed.
is
Contactor
When
Although
and
the
output
(SCR)
control
the
weld
output
REMOTE
4-3.
REMOTE
the the
welding
whenever
CONTROL
in
the
after
the
term
throughout
oroff
bya
is
controlled
which
stack
circuitry
operator
from
Control
is
CONTROL
Place
the
position.
power
the
Control
switch
STANDARD
ON
the
push
SECTiON
CONTACTOR
this
manual,
physical
by
functions
in
this
to
remotely
the
work
to
be
used,
receptacle
CONTACTOR
Depress
source.
Remote
is
not
to
in
the
position,
button
is
the
secondary
Silicon
a
as
a
welding
station.
Contactor
be
is
power
control
make
the
Weld
output
used,
STANDARD
weld
output
depressed.
6
SEQUENCE
used
out
con
Con
con
the
con
in
as
CON
ON
Con
place
will
Weld
output
continue
pressed.
ARC
ARC
CONTROL
the
switch
rapidly
This
position
the
switch
slightly
This
the
switch
fashion
This
Gas
with
OPERATION
CONTROL
provides welding
provides
which
as
provides
Tungsten
as
is
as
is
set
is
is
set
the
5-7.
The characteristicstosuit
When
creases
proached.
of
out
electrodes.
When
creases
proached.
arc
starting
trodes.
When linear
proached.
ated
OF
until
SWITCH
switch
individual
MAX.
at
the
short-circuit
extra
well
as
MED.
set
at
the
short-circuit
a
necessary
at
SOFT,
short-circuit
current
Arc
the
OFF
push
(FIgure
provides
welding
(maximum),
condition
current
for
for
as
(medium),
condition
increase
for
certain
current
condition
characteristics
Welding
(GTAW).
button
51)
selection
conditions.
current
arc
starting
certain
current
in
current
types
types
increases
Is
Je
of
arc
is
ap
is
ap
of
elec
~n
is
ap
associ
in
in
of
in
for
a
AA
WARNING:
MOVING IMPROPER ENVIRONMENT
Do
not
Keep
all
erating.
Warranty
operated
removed.
ARC
can
with
RAYS,
burn
hearing.
Wear
correct
FUMES
your
gases.
AND
health.
Ventilate
If
ventilation
breathing
HOT
METAL,
Watch
Have
to
Allow
lire
for
a
use
work
cause
how
ELECTRIC
PARTS
AIR
FLOW
can
touch
live
covers
is
voidifthe
any
SPARKS,
and
eyes
eye,
GASES
to
keep
is
device.
SPATrER,
and
burns.
fire.
fire
extinguisher
it.
and
equipment
SHOCK
can
cause
AND
damage
electrical
and
panels
welding
of
portion
the
AND HOT
NOISE
skIn;
and
ear,
can
from
breathing
inadequate,
AND
nearby,
to
can
serIous
EXPOSURE
Internal
parts.
in
power
body
while
place
source
enclosure
outer
SURFACES
can
protection.
seriously
fumes
use
approved
SLAG
and
coo!
before
kIll;
Injury;
TO
parts.
op
is
harm
and
can
know
han
MAGNETIC
can
fore
welding
See
Arc
safety
STUD
6-1.
1.
Install
If
2.
Remote
a
Control CONTROL
in
the
and/or
place
CONTROL Sections
Place
3.
Section
4.
Place
sition
5.
Rotate
Remote tion
(see
IMPORTANT:
be
may
6.
adjusted
Prepare
to
its
affect
Wearers
oing
Section
Welding
information.
WELDING
and
connect
are
STANDARD
Remote
a
CURRENT
the
5-5
RANGE
the
5-3).
ARC
the
Section
(see
the
Current
Section
and
Owners
FIELDS
pacemaker
should
near
consult
arc
operations.
1
Safety
Power
unit
Current
not
and
and/oraRemote
to
be
used,
CONTACTOR
position.
Contactor
CONTROL
switches
and
in
5-6).
switchinthe
CONTROL
5-7).
CURRENT
Control
5-4).
The
CURRENT
while
welding.
connect
stud
Manual.
FROM
HIGH
operatIon.
with
welding,
Rules
Source
for
according
place
CONTROL
If
a
Control
and
REMOTE
the
desired
switch
ADJUSTMENT
if
used,
to
ADJUSTMENT
welding
CURRENTS
their
doctor
gouging,
For
Operation
basic
Section
to
Contactor
CURRENT
the
switches
Remote
to
be
are
CONTACTOR
position
position
in
the
desired
control,
the
desired
device
according
be
or
spot
Of
welding
4.
Cunent
used,
(see
(see
po
or
pDsi
control
OM-125
676
Page
13
Page 18
7.
8.
Wear
dry
suitable
Prepare
a.
Connect
work
Select
b.
stud
insulating
work
safety
clamp
flash-type
for
welding
piece.
and
obtain
welding
device.
gloves
goggles.
follows:
as
proper
and
to
clean,
stud(s)
bare
and
and
insert
clothing,
metal
wear
at
into
9.
10.
6-2.
1.
2.
3.
Depress
Section
Begin
welding.
SHUTTING
Stop
welding.
Allow
the
with
utes
Depress
POWER
the
5-1).
DOWN
welding
load
no
POWER
the
switch
source
power
applied.
switch
ON
OFF
to
push
idle
push
button
forthree
button.
(see
min
7-1.
ROUTINE
IMPORTANT:
for
unit
this maintained
when
necessary.
cautionary
WARNING:
4~
Shutdown
nect
cedures
Lockout/tagging
lockinQ
removing
red-tagging
ing
MOVING
Keep
HOT
Allow
Table
MAINTENANCE
Everj
legibility.
in
a
clearly
See
labels.
ELECTRIC
Do
not
input
before
line
device.
touch
wer
po
disconnect
fuses
circuit
PARTS
away
SURFACES
cooling
7-1.
MaIntenance
SECTION
months
six
All
precautionary
readable
List
Parts
live
electrical
welding
powersource,
employing
inspecting,
procedures
from
from
switch
fuse
breakerorother
can
cause
moving
can
cause
before
MAINTENANCE
7-
labels
state
part
the
labels
and
number
can
must
replaced
kill.
inspect
for
SHOCK
parts.
and
discon
lookout/tagging
open
disconnect
burns.
orserv
of
position,
Injury.
maintaining,
consist
in
or
box,
shutting
serious
parts.
severe
servicing.
Schedule
of
off
pre
pro
pad
and
on
be
&
TROUBLESHOOTING
Fan
A.
This
forced
manufactured
no
S.
a
Motor
is
unit
equipped
draft
for
maintenance.
Weld
Cables
WARNING:
tion
at
proceeding.
three
Every
tion.
Repair
present.
tion.
Internal
C.
a
months
or
Clean
Cleaning
WARNING:
tlon
at
proceeding.
six
Every
the
outer
uum
conditions
7-2.
months
insideofthe
enclosure,
suction
RECTIFIER
for
are
withanexhaust
adequate
with
lifetime
Read
beginnIng
inspect
replace
and
cables
tighten
Read
begInnIng
blow
Out
welding
and
use
the
cleaning
present,
clean
PROTECTION
fan
cooling.
sealed
and
of
entire
cables
connections
and
of
entire
or
vacuum
power
a
clean,
The
bearings
follow
SectIon
for
breaksininsula
if
insulation
follow
SectIon
dust
source.
airstream
dry
safety
operation.Ifdusty
the
unit
monthly.
at
and
fan
and
7-1
breaks
each
7-1
and
Remove
relies
on
is
motor
requires
Informa
before
are
inspec
Infomia
before
dirt
from
the
or
vac
or
dirty
FREQUENCY
Every
Every
Every
*
Frequency
hours
40
enance
OM-125
676
Month
3
Months
6
Months
per
if
usage
Page
of
service
week.
14
Units
ments:
Check internal
Check
7-18).
Check
ANT
internal
Increase
exceeds
MAINTENANCE
in
heavy
labels,
parts.
weld
all
labels
block,
parts
is
based
frequency
40
hours
service
weld
cables
(see
Section
(Section
units
on
per
environ
cables,
clean
(Section
IMPORT
Clean
7-1).
operated
of
maint
week.
The
main
protected
with
series
of
the
ing
causing
open
thereby
will
ing
7-3.
suspending
be
necessary
operation.
OVERLOAD
WARNING:
a
nect
cedures
in
rectifier
byanormally-closed
the
main
SRi
contactor
rectifier
the
contactor
all
allow
to
this
W
coil
occur,
to
output.
a
cooling
welding
thermostat
circuit.
drop
If
this
PROTECTION
ELECTRIC
Do
Shutdown
touch
not
live
welding
input
powerenploying
before
inspecting,
electrical
powersource,
power
TP1
Should
this
thermostat
out
(deenergize)
condition
before
period
SHOCK
can
parts.
and
locko
ut/tagging
maintaining,
source
wired
overheat
would
occurs,
resum
kill.
discon
pro
orserv
is
in
it
Page 19
A.
Control
Fl
Fuse
Fl
located
is
power
pletely
To
replace
1.
Remove
2.
Check
Reinstall
3.
B.
Circuit
Fuses These
fuses
welding
weld
open,
completely.
stop
To
replace
follows:
1.
Remove
2.
Check
Reinstall
3.
Lockout/tagging
disconnect
device.
Use
only
rating
Circuit
on
line
from
fuses
circuit
FUSE
replacement
Parts
(see
Fuse
control
the
center
the
fuse
Fl
If
locking removing
red-tagging
ing
INCORRECT
and
protects
source.
inoperative.
and
right
replace
and
right
Fuses
F6
located
would
these
and
right
and
right
as
protect
If
fuses
F6,
F2
through
power
any
Fl,
proceed
top
and
Fl,
top
Board
are
source.
output
of
top
F2
through
top
procedures
switch
fuse
box,
breaker
can
or
damage
fuse
List).
Fl
circuit
from
battle
follows:
panel.
it
necessary.
panel.
Through
the
the
center
of
one
become
F2
through
panel.
and
replace
side
panel.
the
opens,
side
side
F2
on
any
either
side
consist
in
open
or
shutting
other
of
same
overload.
inside
unit
F6
circuit
baffle
these
very
F6,
if
necessary.
of
position,
off
disconnect
unit.
size,
the
welding
will
be
com
board
inside
should
fuses
erratic,
proceed
pad
and
type,
Fuse
PCi.
the
or
as
7-4.
TROUBLESHOOTING
a
WARNING:
Do
Shut
employing internally
ELECTRIC
touch
not
down
unit
lockout/tagging
inspecting,
Lockout/tagging
line
cking
MOVING
Keep
HOT
Allow
fuses
device.
away
SURFACES
cooling
disconnect
from
circuit
PARTS
from
Troubleshooting
formed
Itisassumed
Section
to
ing
with
the
function
was
working
the
to
welding
to
diagnose
that
les
Use
while trouble
dures,
shouldbecontacted.Inall
tion,
strictly
may
this
performing
is
the
the
followed.
only
that
4
properly,
process.
and
provide
develop
in
table
not
remedied
nearest
manufacturers
qualified
by
the
unit
of this
manual,
of
controls,
and
in
conjunction
troubleshooting
Factory
(Table
SHOCK
electrical
live
and
disconnect
maintaining,
procedures
switch
fuse
box,
breakerorother
cause
can
moving
can
period
of
was
that
The
following
remedies
this
welding
after
Authorized
cases
recommendations
parts.
cause
before
internal
persons.
property
the
the
welding
the
trouble
for
with
performing
of
equipment
7-2)
kill.
can
parts.
input
procedures
or
servicing.
consist
in
open
or
serious
severe
of
position~,
shutting
disconnect.
Injury.
burns.
servicing.
be
to
parts
installed
operator
table
some
power
the
circuit
power
is
not
is
of
source.
is
the
accord
designed
diagram
procedures.
these
Service
malfunc
should
power
before
padlo
re
off
and
per
familiar
source
related
troub
lithe
proce
Station
be
OM-125
676
Page
15
Page 20
Table
7-2.
TroubleshootIng
TROUBLE
Completely
weld
weld
output.
Erratic
Low
inoperative.
output.
PROBABLE
line
Open
Fuse
Contactor
Poor
connections.
Main
(thermal
Poor
and/or
Fuses
Electrode.
Open
Poor and/or
Low
fuse(s).
Fl
open.
W.
and/or
rectitier
shutdown).
and/or
output
F2-F6
line
fuse.
and/or
output
line
voltage.
improper
SRI
improper
connections.
open.
improper
connections.
input
overheating
input
input
CAUSE
Replace
Replace
Check necessary.
Refer
connections.
Allow 7-2.
Refer and
Replace
Replace
Replace
Refer
and
Correct
open
Fl.
W
points
Section
to
the
unittocool
Sections
to
output
open
electrode.
open
Section
to
output
low
line
fuse(s).
for
wear
4-4
for
down,
4-2
and
connections.
fuse
(see
line
fuse.
4-2
and
connections.
line
voltage.
REMEDY
and
proper
4-4
Section
4-4
replace
input
and
see
for
7-3).
for
proper
points
Section
proper
if
input
input
No
weld
output.
Improper
Control
RENT
Fuse
Fuse
in
ADJUSTMENT
Fl
F2-F6
of
use
Remote
conjunction
open.
open.
Current
with
CUR-
control.
Refer
to
Current
Replace
Replace
Section
Control.
Fl
(see
F2-F6
5-5
Section
as
necessary
for
proper
7-3).
use
(see
Remote
of
Section
7-3).
OM-125
676
Page
16
Page 21
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0
C)
Cl)
I.
384
C-089
No.
Diagram
Circuit
RECEPTACLE
(OPTIONAL-EXTRA)
lisp
Diagram
CIrcuit
8-1.
Diagram
Page 22
C,,
OM-125
676
Page
N
18
Page 23
0
C
B
Diagram
8-3.
F<
A.
Clrcuft
Diagram
D5
L~
r~
07
09
~
For
3-Phase
__
1R2
1
Feedback-Burden
D4
D6
08
ri
Circuit
Board
Diagram
PC2
No.
A-120
005
OM-125
676
Page
19
Page 24
SECTION
9-
PARTS
LIST
7
8
r
4
9
-1
10
~
I
OM-125
676
Page
9-1.
20
Panel,
Front
W/Components
Page 25
Item
No
Figure
2
3
4
5
6
7 8 9
10
11
Mkgs.
9-1
Cl
Dia.
S5
R3
R4
S3
RC1
4-17
S2,4
R5
Pci
RC2
PB1
PL1
C4,5
Part
No.
011
610
091
377
052
140
030853
085
089
035 523 094 206
750
097
011
609
097926
072
623
072590
070609
035815
035
506
073 756
011
636
027645 005397 086554
605
583 086615 038
612
038613
038
847
038
900 602247 605
787
601
840
601
839
006034
-
Panel,
SWITCH,
RESISTOR
SWITCH,
front
toggle
RESISTOR,
RESISTOR,
toggle
W/Components
ASSEMBLY
carbon carbon
RECEPTACLE,
CAPACITOR
ASSEMBLY
CAPACITOR,
SWITCH,
KNOB,
pointer
POTENTIOMETER,
RI
LOCK,
CIRCUIT
TERMINAL, GUIDE, STAND-OFF, SWITCH, LIGHT,
PLATE, PANEL,
CATCH, BRACKET,
TERMINAL
TERMINAL BUS
CAPACITOR,
shaft
indicator-red
BAR
STUD, WASHER, WASHER,
brass-hex
NUT,
brass-hex
NUT,
CARD,
header
circuit
card
6-32
push
indicator
front
spring
mtg
ASSEMBLY,
BOARD
brass
1/2-13x2-1/4
flat
lock
ceramic
Description
SPOT
15
(consisting
0.5
0.5
SPST
20
5
socket
ceramic
SPDT
root
button
loaded
-
terminal
SAE
-
MS-3102A-16S-8S
0.05uf500
15
carbon
pass
29
socket
5/8
PCi
x
10
lens
power
1/2
internal
1/2-13
jam
full
1/2-13
0.003
125
amp
volts
of)
330
2.2K
125
ohm
ohm
volts
watt watt
amp
(consisting
volts
125
amp
1
(Fig
amp
volts
turn2watt
9-2)
550
volts
assembly
output
1/2
tooth
uf
3000
center
of)
dc
ohm
1000
ac
(consisting
volts
cic
off.
of)
Quantity
1 I
1 1 1
2 2 2
1
1
1
I I 2 4
1 I
1
1
1
I
2
I 1
2 2 2 4 2 2
BE
SURE
TO
PROVIDE
MODEL
AND
SERIAL
NUMBER
WHEN
ORDERING
REPLACEMENT
PARTS.
OM-125
676
Pago
21
Page 26
R127
C80
~
I
________IVR5I
077
______
~I
C76
C77
D76
~Jo1]
_______
________IVR5O
I
_____________
C.)
SR50
~
~iU
+~
C79
___
_____
C96
~
151
150
T53
152
o~I
UL~)
155
154
0)
-
I
1
ASSY
0
_____
29
0
OM-125
676
Page
Rel
0.084
204.E
9-2.
FIgure
22
CIrcuit
Card,
Root
Pass
Page 27
10
6
Dia.
Mk~s.
Figure
9-2
A50-59
C51-53
C54,56,59-61
.63,66,
67,68,70,73,74
C55,62,69
C57,58,64,65,71,
72,77,80,82,87
C75
C76,79
C78,81
C83,85,88-93,
95,96,99
C98
D50-52,54-56,58-60
66-66,70-72,74,75,81,86
D53,57,61
,65,69,
73,76,77,82,85
Q50
52,54,56,58,60
Q51
53,55,57,
59,61,62
Q63
R50-52,11i
R53,54,61
,112
62,68,75,76,82,
83,90,91,109,124,135
R55,63,69,77,84,92,
R56,64,70,78,85,93,
R57,65,71
79,86,94,99
R58,72,87
R59,66,73,80,88,95
R60,67,74,81
.89,96
R97,101,133
Ri
Ri
137 02 04
R98,125
R106,130,134
R107 RhO
R113,116
Ri19
Ri
20
Ri
22
RI
27
R13i
136,139
Ri
32
R138
SR5O
T50-55
VR5O
VR51
,62-64,
108,126 100,129
Part
No.
609
070
035845
035
035 833 035
053991
038 000 859 031
059
007
028
026
037
035
000088 000 885
035
035
035 035 825
035 035
605919
035 885 035
030024
035829 035
035 039 030
030
039 076712
039329 039331 039 335
035886 035 035 081 046 035
CIrcuit
IC,Iinear3o7
834
CAPACITOR,
CAPACITOR,
835
CAPACITOR,
CAPACITOR,
585
CAPACITOR,
CAPACITOR,
630
CAPACITOR,
122
CAPACITOR,
742
CAPACITOR,
351
DIODE,
202
DIODE,
277
TRANSISTOR,
842
TRANSISTOR,
TRANSISTOR,
RESISTOR,
884
RESISTOR,
826
RESISTOR,
827
RESISTOR,
RESISTOR,
823
RESISTOR,
257
RESISTOR,
RESISTOR,
RESISTOR,
887
RESISTOR, RESISTOR, RESISTOR,
848
POTENTIOMETER,
888
RESISTOR,
108
RESISTOR,
089
RESISTOR,
045
RESISTOR,
106
RESISTOR,
RESISTOR, RESISTOR,
RESISTOR,
RESISTOR,
RESISTOR,
841
RECTIFIER,
846
TRANSFORMER,
832
IC,
932
IC,Iinear7gi5
849
TERMINAL,
Card,
linear
Description
Root
metal
mylar electrolytic
ceramic
mylar electrolytic electrolytic
ceramic
electrolytic
0.020
signal
I
400
amp
NPN
PNP
NPN
carbon
carbon carbon carbon carbon carbon carbon carbon carbon carbon carbon carbon
carbon
carbon
carbon
WW carbon carbon carbon carbon
carbon carbon
integrated
78M15
header
Pass
film
0.033
0.22uf50
amp
volts
200MA
0.6 800MA
film
film
film
film
film
film
0.25
0.25 film
film
0.5 film
cermet
film
film
0.5
fIxed
film
0.25 film
film film film
pulse
29
1.5
4.7
0.05
220 22ut50
0.01 10uf35
SP
amp
0.25
0.25
0.25
0.25
0.25
0.25
watt
watt
0.25
0.25
watt
0.25
0.25
0.25
watt
3.25
0.25
watt
0.25
0.25
0.25
0.25
1.5
pin
uf
75
uf
100
uf
ut
uf
volts
30
40
1K
25
2.7
watt
amp
100
500
volts
uf
500
40
watt
watt
watt watt
watt watt
270
47
watt
watt
watt
turnS
watt watt
watt
220K
watt
watt watt
watt
volts
35
volts
volts
35
volts
volts
volts
SP
volts
volts
volts
10K
lOOK
6.8K 10K
1K
100
ohm
ohm
68K
3.3K
ohm
1.5K
2.2K
82K
ohm
100
470
2.7K
4.7K
47K
22K
200
volts
volts
ohm
watt
ohm
ohm
volts
dc
dc
dc
dc
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm
ohm ohm
dc
ohm
10K
ohm
Quantity
10
3
12
3
10
1
2 2
ii
1
22
7
I
5
14
8
8
7
3 6
6
3
3
1
1
3
1 I
2
1
1
1
1
3
1
1
1
6
1
I I
BE
SURE
TO
PROVIDE
MODEL
AND
SERIAL
NUMBER
WHEN
ORDERING
REPLACEMENT
PARTS.
OM-125
676
Page
23
Page 28
1II315I
Item
No.
Figure
1
2
Mkgs.
9.3
CT1-3
Dia.
F2-6
Part
No.
283
035
035
282 084
057
086575
088618
*012633
082976
Side
Right
CONTROL
COVER, BUSHING,
TRANSFORMER, ANGLE,
FUSE,
HOLDER,
View
BOX,
control
snap
mtg
miniature
fuse-miniature
Description
PCi
box
-
in
current
-
current
-
glass
2
H:
1/4
nylon
transformer
1
amp
ID
3/8
hole
mtg
~
Quantity
13~
12-~~
7
OM-125
676
Page
Right
Side
View
24
9-3.
Page 29
Item
No.
FIgure
Mkgs.
9-3
Dia.
Part
No.
Right
Side
View
(Contd)
Description
Quantdy
3
4
5
PC2
D4-9
Ri
TEl
R6,7
6
7
8
9
10
11
12
13
TEl 089
SRi
C7-i
SCR1-6
TP1
Wi
C21-23
*Recommended
+When
BE
ordering
SURE
TO
,2
FM
Ti
Fl
12
Z
W
2
Spare
a
component
PROVIDE
053
026
007 038
038
038
038 038890 026
010915
601
038
088 039 032 032
089 038 602
605 601
601
086854
086
086 086 086 086656
*012
070
090
088
084 080
070 601
044 025
004
004259 004
034 089 086
086574
+089
010853 010 010357
086
026
109 035
Parts.
MODEL
CIRCUIT
908
202
264
954
622
620
846
DIODE,
RESISTOR,
TERMINAL
BLOCK,
LINK,
TERMINAL
CARD,
1
amp
terminal
jumper
STUD,brassl/4-20x2-1/8
754
INSULATION,
~WASHER,fIat-brass1/4
836
652
131
210
605
616 088
087
654
246
787
839
840
.
WINDTUNNEL, RESISTOR, MOTOR,
BLADE,
TERMINAL
brass
NUT, LINK,
jumper
TERMINAL
STUD, WASHER, WASHER,
brass-hex
NUT,
brass-hex
NUT,
SP
fan
brass
PANEL,rear
NAMEPLATE
891
TRANSFORMER,
681
682
683
639 404
474
616
005
894
160
066
267
248
104
COIL,
pri/sec
COIL,
COIL,
BASE
FUSE,
HOLDER,
cartridge
fuse
TRANSFORMER,
STABILIZER
RECTIFIER,
CAPACITOR,
THYRISTOR, THERMOSTAT,
CLAMP,
thyristor
STAND-OFF,
CONTACTOR,
COIL
.
258
821
089
144
KIT,
INTERLOCK,
CAPACITOR
CAPACITOR,
PANEL,sideLH
093
PANEL,
side
FASTENER,
855
RETAINER,
~NUT,speedNo.2clipon
578
COVER,
627
GASKET,
LABEL,
originally
AND
top
rubber
warning
displaying
SERIAL
feedback
400
volts
WW
fixed
ASSEMBLY,
30
-
terminal
BOARD
barrier
stud
-
hex
jam
-
primary
20
inch
WW
fixed
1/4
60Hz20
hp
230
ASSEMBLY,
BOARD
1/2-13
1/2
flat
-
lock
internal
full
jam
(order
by
power
6
amp
-
cartridge
KVA
SCR
(consisting
ceramic SCR
NC
insulator
3P
600
NO
ASSEMBLY
ceramic
RH
~consisting
screw
No.
screw
-lifting
electric
a
precautionary
NUMBER
(consisting
SP
12
watt
(consisting
pn
5
amp
pole
block
1/4-20
studs
375
watt
volts
ac
3
inch
wing
pri
(consisting
2-5/8
x
tooth
1/2-13
1/2-13
&
model
-
main
600
volts
30
amp
1/2
of)
0.01
uf
1200
amp
1/4-20
volts
x
(consisting
(consisting
0.0022UI6000
of)
-
slottedhdNo.
2
eye
shock
can
WHEN
of)
ohm
6.6
of)
12
ohm
1625
rpm
21
degree
of)
1/2
serial
number)
(consisting
600
volts
1000
volts
dc
500
volts
1-1/4
of)
of)
volts
2
kill
etc
the
label,
ORDERING
of)
dc
label
should
REPLACEMENT
also
be
ordered.
PARTS.
OM-125
676
I
6
2
1
1
1
1
18
18 18
36
6
1
2
1
1
I 1
3 3
3 6
6
1 1
1
1
2
3
1
1
1
I
1 1
6 6
1
3
6
1
i
3
1 1
3
1
1
2 2 2
I
1
1
Page
25
Page 30
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