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G-5
SCHEMATIC - COMPLETE MACHINE - CODE 11397 (L13104)
S3 OPERATION
OFF
AUTO
HIGH
START
X= CLOSED CIRCUIT
J51-1
IGNITION
MODULE
+
HOUR
METER
POSITIVE
TERMINAL
Open Circuit Volts:
Max
Min
DC
68
34
NEGATIVE
TERMINAL
6A
6
3
3A
CB3
CB1
CB4
20A
40A
20A
6B
3B
11
12
J3
J2
J4
5K
5L
GND-D
GND-C
GND-G
5
+14V IN AUTO IDLE / OV IN HIGH IDLE
2
1
AUTO IDLE (2)
OFF
4
3
HIGH IDLE (3)
+14V RUN
IDLE SOLENOID COIL
S3
-ENERGIZED FOR
START (4)
1 2 3 4
+BAT (1)
LOW IDLE.
X X X
Idle solenoid is
X
X
located on top of
X
X X
generator stator
assembly
211
224C
CB7 25A
208C
J51-3
J51 - Engine
208
209A
Connector
BATTERY
Engine diodes
224A
224C
J51-2
CHARGING
are in engine
R
R
ALT/REG
wire harness.
U
B+
AC
ENGINE
STARTER
210
AC
SOLENOID
ENGINE OIL
44 TO 45 VAC
GND
PRESSURE
BETWEEN AC
ENGINE
SWITCH
TERMINALS
STARTER
OPENS ON
AT HIGH IDLE
LOW OIL
PRESSURE
Resistance of fuel
solenoid cannot be
If engine oil pressure drops below safe
accurately
operating pressure, the oil pressure
measured through
switch opens removing 12 volts from
diodes.
circuit 224 shutting off fuel solenoid to
stop engine. Hourmeter will also stop
running and PCB1 will denergize idle
solenoid.
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
ELECTRICAL DIAGRAMS
Choke mounted on base in
front of generator.
D1 - BRIDGE RECTIFIER
L1 CHOKE
S1 - SELECTOR SWITCH
Rectifier mounted on top of choke and
AC reactor in front of generator..
Torroid Core located on
wiring behind receptacles.
SUPPRESSOR FOR
213
D1 RECTIFIER
8 (J1-12)
12 to 14 volts
5K
15 Ohms
across coil when
energized
10 (J1-6)
213A (J2-1)
215 (J1-3)
+14V @ NORMAL OIL PRES.
224 (J1-9)
J51-4
Fuel solenoid is mounted
OUTPUT
on engine carburetor.
Battery voltage:
CONTROL
12.6 volts at rest
10K
14 volts engine running
5.64 V
77A (J1-1)
+
ENGINE DIODES
R1
76A (J1-8)
12 VOLT
BATTERY
1.28 V
75A (J1-7)
FUEL
SHUTOFF
FRAME
SOLENOID
5E (J1-2)
Control board common is
GROUND
one diode drop above
REVERSE VOLTAGE
welder frame ground.
PROTECTION DIODE
CONNECTOR PIN NUMBERS:
4
3
12
7
2
1
6
3
2
1
J2
J1
STATOR
WELD
210DC
WINDINGS
145
W1
90
NO CONNECTION
TO C1, E AND S2
254
C1
R5
R3
R1
AC tapped reactor mounted
1
E
S2
on base in front of generator.
TOROID: SENSES
T
S1
W2
WELD OR AC
U
POWER LOAD TO
AC TAPPED REACTOR
R
STATOR AUXILIARY
ACTIVATE IDLER
N
POWER WINDINGS
3
2 TURNS
LEADS 3 AND 6 PASS
2 TURNS
120 V AC
THROUGH TORROID
TWO TIMES IN
240 V AC
OPPOSITE DIRECTIONS
5
GND E
120 V AC
6
7
41 TO 45 VAC
9
STATOR
EXCITATION
WINDINGS
260
261
7
(J2-4)
(J2-3)
+10V
FIELD
LOAD
FLASHING
.05
SENSOR
IDLE TIMER
CIRCUIT
130V
+
38J
(12 SEC.)
-
FLYBACK
20
DIODE
IDLE SOLENOID
+10 VOLT
+10V
COIL
REGULATOR
SWITCHING
CIRCUIT
TRANSISTOR
(OVER-CURRENT PROTECTED)
+10V
HYSTERESIS SWITCH
68.1K
47.5
LEVEL
+
CHANGING
AND DRIVER
-
47.5
CIRCUIT
+
-
FIELD CURRENT FEEDBACK
FEEDBACK AMP
FIELD & IDLE CONTROL
PC BOARD (L12198-1)
G-5
74 TO 78 VAC BETWEEN W1
AND W2 AT HIGH IDLE AND
MAXIMUM RHEOSTAT NO LOAD.
TWO POLE 3600
RPM ALTERNATOR
REVOLVING
BRUSHES
FIELDS
+
RESISTANCE
APPROX. 5 OHMS @ 75F
Rotor Flashing: 2.5
volts @ 0.5 amps.
10 TO 50 VDC AT
until generator build-up.
1.7 TO 6.8 AMPS
-
SLIP RINGS
219
200A
EXCITATION WINDING
VOLTS MEASURED AT
MAX RHEOSTAT HIGH
IDLE NO LOAD
PC Board
located on rear
of fan
baffle near top
of machine.
9
219
200A
(J1-5)
(J1-11)
FLYBACK
DIODE
FIELD
CURRENT
0.1
FEEDBACK
RESISTOR
+
4700uF
80VDC
FIELD CURRENT
SWITCHING
TRANSISTOR
(OVER-CURRENT PROTECTED)
A
L13104
EAGLE™ 10,000
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Troubleshooting
