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18 HP 42" TRACTOR - MODEL NO. YTH180 (954001172A)
SCHEMATIC
BATTERY
G
B
S
L
M
IGNITION
SWITCH
FUSE 30 AMP.
2
3
4
IGNITION
UNIT
SPARK
PLUGS
RED
BLUEBLUE
12.2 VOLT
SENSOR
OIL PRESSURE SWITCH
(ENGINE OFF)
HOUR
METER
HEADLIGHT SWITCH (OFF)
HEAD-
LIGHTS
BLACK
BROWN
IGNITION SWITCH
CIRCUITPOSITION
OFF
B + LON
B + S + LSTART
M + G
S
B
G
M
L
NON-REMOVABLE
CONNECTIONS
REMOVABLE
CONNECTIONS
1 LOW FUEL
2 DISENGAGE ATTACHMENT
3 BATTERY DISCHARGING
4 CHECK OIL
INDICATOR LIGHTS
RED
BLACK
RED
RED
BLACK
BLACK
WHITE
RED
RED
BLACK
BLACK
YELLOW
01703 - (WH#141571)
RED
ORANGE
STARTER
M
RED
SOLENOID
BLACK
ALTERNATOR
YELLOW
28 VOLTS AC @ 3600 RPM (REGULATOR DISCONNECTED)
REGULATOR
CHARGING SYSTEM
OUTPUT
15 AMP DC @ 3600 RPM
WIRING INSULATED CLIPS
NOTE: IF WIRING INSULATED
CLIPS WERE REMOVED FOR
SERVICING OF UNIT, THEY
SHOULD BE REPLACED TO
PROPERLY SECURE YOUR
WIRING.
BLACK
BLACK
PTO SWITCH
CIRCUITPOSITION
OFF
C + F, B + E, A + DON
C + G
B
A
G
E
D
F C
1
RED
LOW FUEL
SENSOR
(TANK FULL)
BLACK
AFTER FIRE SOLENOID
RED
SEAT SWITCH
(NOT OCCUPIED)
GROUNDING
CONNECTOR
WHITE
PTO
(DISENGAGED)
C G
F
B
E
A
D
BLACK
BLACK
ELECTRIC CLUTCH
BLACK
CLUTCH / BRAKE
(PEDAL UP)
WHITE
BLACK
BLACK