
RECEIVING-HANDLING
OM-125
878
11/89
Before
age
claims
Assistance
from
ers
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
Output
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

Table
4-1.
weld
Cable
Size
.
~
100
150
200
250
300
350
400
500
600
700
800
900
cable
WeId
mils
B.
A~
1.
2.
IMPORTANT:
polarity.
connections
positive).
4-3.
NECTIONS
IMPORTANT:
on
put
tactor;
trolled
factor.
The
tion
ampere.
per
Installation
WARNING:
Shutdown
nect
procedures
Lockout/tagging
locking
removing
red-tagging
ing
Connect
minal.
Connect
terminal.
If
dc
CURRENT
the
nameplate
is
switchedon
not
rather
Rectifier
REMOTE
for
point
10To60%
Duty
1/0
1/0
2/0
3/0
4/0
4/0
2-2/0
size
(AWG)
Do
not
touch
input
line
disconnect
fuses
device.
work
cable
electrode
The
connections
straight
weld
to
AND
(Figure
Although
and
the
output
(5CR)
CONTROL
connecting
OrLess
100
ft.
(30m)
60
Cycle
4
3
3
2
1
based
is
ELECTRIC
live
electrical
welding
power
before
employing
inspecting
procedures
from
fuse
circuit
breaker
NEGATIVE
to
cable
polarity
output
CONTACTOR
5-1)
the
term
throughout
oroff
bya
is
controlled
stack
receptacle
Remote
a
Cable
Total
(Copper)
150
(45m)
Thru
100%
Cycle
Duty
4
3
2
1
1/0
2/0
2/0
3/0
4/0
2-2/0
2-2/0
2-3/0
on
SHOCK
either
can
4
a
1/0
210
3/0
3/0
4/0
2-2/0
2-3/0
2-3/0
2-4/0
voltsorless
kill.
parts.
discon
wersource,
po
and
lockout/tagging
or
installing.
switch
box,
or
POSITIVE
to
given
is
desired,
terminals
CONTACTOR
this
consist
in
or
shutting
other
weld
are
(work
CONTROL
manual,
open
disconnect
output
weld
fordc
reverse
becomes
of
position,
reverse
is
the
physicalsecondary
Silicon
a
which
by
functions
pi~vides
Contactor
asacon-
a
and/or
Length
ft.
4
2
1
pad
off
and
ter
output
cable
CON
used
out
con
Con
junc
a
in
Weld
200
ft.
(60m)
10
3
1
1/0
210
3/0
4/0
4/0
2-210
2-3/0
2-4/0
2-4/0
3-3/0
or
drop
Remote
welding
and/or
tor
receptacle,
Control
clockwise.
lar
4-4.
ELECTRICAL
a
a
A.
Electrical
This
welding
from
a
hasaline
electrical
250
(70m)
Thn~
2
1/0
2/0
3/0
4/0
2-2/0
2-210
2-3/0
2-4/0
3-3/0
3-4/0
3-4/0
current
a
Current
power
Current
insert
into
fully
Do
Shutdown
nect
Not
ft.
100%
source.
the
not
input
Exceeding
30011.
(90m)
Duty
1
2/0
3/0
4/0
2-210
2-3/0
2-3/0
2-4/0
3-3/0
3-4/0
3-4/0
4-4/0
density
Control
To
Control
the
five-pin
receptacle
INPUT
ELECTRIC
touch
welding
power
before
Circuit
WARNING:
procedures
Lockout/tagging
line
locking
removing
red-tagging
device.
ing
CAUTION:
JUMPER
unit.
Position
voltage
Store
minals.
three-phase,
voltage
input
fuses
LINK
jumper
label
unused
Input
power
rating
voltage
disconnect
from
circuit
INCORRECT
(see
jumper
RequIrements
source
60
that
shown
_______
1
~
40011.
(120m)
35011.
(105m)
Cycle
of
more
to
the
connect
the
to
CONNECTIONS
live
electrical
powersource,
employing
1/0
3/0
4/0
2-2/0
2-3/0
2-3/0
2-4/0
3-3/0
3-4/0
3-4/0
4-4/0
4-4/0
than
internal
the
REMOTE
plug
and
rotate
SHOCK
300
Remote
from
parts.
lockout/tagging
1/0
3/0
4/0
2-2/0
2-3/0
2-4/0
2-4/0
3-3/0
3-4/0
4-4/0
4-4/0
circular
S-000718-88
circuitry
Contac
CONTROL
Remote
the
threaded
kill.
can
and
discon
inspectingorinstalling.
procedures
switch
fuse
box,
breaker
PLACEMENT
linksasshown
Figure
Hertz,
4-2).
links
is
designed
ac
corresponds
the
on
consist
in
or
shutting
other
or
INPUT
across
to
power
nameplate
OM-125
open
disconnect
VOLTAGE
can
on
linked
be
supply
with
one
676
of
position,
off
damage
the
operated
or
of
the
col
pad
and
input
ter
which
of
the
input
Page
-
9

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
slight
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
dling.
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
damage
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
Owners
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.
Cunent
used,
(see
(see
po
or
pDsi
control
OM-125
676
Page
13

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,
toggle
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

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

Item
No.
FIgure
Mkgs.
9-3
Dia.
Part
No.
Right
Side
View
(Contd)
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,
ph/sec
COIL,
BASE
FUSE,
HOLDER,
ph/sec
cartridge
fuse
TRANSFORMER,
STABILIZER
RECTIFIER,
CAPACITOR,
THYRISTOR,
THERMOSTAT,
CLAMP,
thyristor
STAND-OFF,
CONTACTOR,
COIL
.
258
821
089
144
KIT,
points
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