F-1
SP-175 PLUS
F-1

WIRING DIAGRAMS

M19060
L1
L2
31
H2
202
201
D5
D7
D2
D8
204
204
203
203
203
204
-

+

OUTPUT CHOKETOWORKELECTRICAL SYMBOLS PER E1537
CIRCUIT
BREAKER 31A
123
456
LATCH
FAN
MOTOR
1234
LATCH
5
678910
J1 J2
CAVITY NUMBERING SEQUENCE
123456 1234
5678910
7
32A
CONTROL P.C. BOARD
539
541
207 205 206 541539 203 204 210 209 213 208
211
T1
WIRE FEED MOTOR
213A
GUN TRIGGER
THERMOSTAT
(MOUNTED TO
DIODE HEATSINK)
+
208
209
210
5K
WIRE SPEED
205
206
207
5K
( J1 )
( J2 )
*
*
*
CONNECTOR CAVITY NUMBER
ARC VOLTAGE
R1
R2
7
32A
N.A.
N.C.
N.C.
N.D.
24 VAC
AUX WDG.
NOTES:N.C. COMPONENT VIEWED FROM REAR.
HIGH VOLTAGE
can kill
Only qualified persons should install, use or
service this machine.
Do not operate with covers removed.
Do not touch electrically live parts
Disconnect input power by unplugging
power cord before servicing
WHICH IS CLOSEST TO THE CENTER PANEL.
N.B., N.D.
(COMPONENT SIDE OF BOARD)
N.D. BOLTED ALUMINUM CONNECTIONS REQUIRE T12837 JOINTCOMPOUND (DOW CORNING 340) WHEN REATTACHING.
SP-175 Plus WIRING DIAGRAM CODE 10542
12
3
4
5
LATCH
J3
54321
JUMPERED PLUG STANDARD
SPOT/STITCH TIMER OPTIONAL
215 215 213
( J3 )
*
203
203
D4
D6
D1
204
204
C1
N.D.
+
THERMOSTAT
(MOUNTED TO
SEC. COIL)
31A 32
H1
H1
(230V)
208/230 60Hz
GAS
SOLENOID
H1
H3
G
CASEGROUNDING STUDTO EARTHGROUND PERNATIONAL,LOCAL OROTHERAPPLICABLEELECTRICALCODES.
H3
(208V)
N.A. DIODES D1, D3, D5 & D7 ARE MOUNTED ON THE OUTSIDE HEATSINK.N.B. DIODES D2, D4, D6 & D8 ARE MOUNTED ON THE INSIDE HEATSINK, CUSTOMER VOLTAGE RECONNECTION FOR DUAL VOLTAGE MACHINEMACHINES ARE SHIPPED FROM FACTORY CONNECTED FOR 230V AS SHOWN. TO CONNECT WELDER FORREVERSE OF ABOVE PROCEDURE. SEE INSTRUCTION MANUAL FOR DETAILS.SLEEVING, REINSTALL CASE SIDE BEFORE CONNECTING INPUT POWER. RECONNECTION TO 230V IS
D3
ON-OFF
SWITCH
S1
FROM TAB TERMINAL H1. REMOVE TAPE SECURING H3 TO LEAD SLEEVING AND CONNECT H3 TO TABTERMINAL H1. INSULATE UNUSED H1 LEAD FOR 300V WITH ELECTRICAL TAPE AND SECURE TO LEAD208V INPUT. DISCONNECT WELDER FROM INPUT POWER, REMOVE CASE SIDE, REMOVE LEAD MARKED H1GUN CABLECONDUCTOR BLOCK
120,000 f
50V
.0047 f
3KV
.0047 f
3KV
CASEGROUNDING STUD
RF CHOKE
AS'BLY
4-16-99G
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. Thespecific diagram for a particular code is pasted inside the machine on one of the enclosure panels.