TRACTOR - MODEL NUMBER PR20PH42STB
SCHEMATIC
RED
BLACK
BATTERY
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| SOLENOID |
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A |
| RED |
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| RED | RED | M |
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AMMETER |
| FUSE |
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| STARTER | |
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(OPTIONAL) | WHITE |
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| WHITE |
| BLACK | ||
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RED |
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| C |
| G |
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B | S | BLACK |
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| ELECTRIC CLUTCH | |
M |
| CLUTCH / BRAKE | BLACK |
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| RED |
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G | A1 |
| (PEDAL UP) |
| F |
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| H |
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L | A2 |
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| B |
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| RED |
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BLACK
IGNITION
SWITCH
ORANGE
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| E |
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SEAT SWITCH |
| D |
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(NOT OCCUPIED) |
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| PTO (DISENGAGED) | |
GREEN | GREEN |
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| BLUE | HOUR | BLACK |
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| METER |
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85 | 86 |
| BLACK |
87 | 30 |
| 87A |
OPERATOR | |
PRESENCE | |
RELAY #1 | |
FUEL (OPTIONAL)
LINE
BLACK
BLUE
FUEL
RED
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| SPARK | ||
IGNITION |
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| PLUGS GAP |
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UNIT |
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| (2 PLUGS ON | |||
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| TWIN CYL. ENGINES) | |||
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CHARGING SYSTEM OUTPUT |
| 28 VOLTS AC @ 3600 RPM | ||||
16 AMP DC @ 3600 RPM |
| (REGULATOR DISCONNECTED) | ||||
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REGULATOR
ALTERNATOR
BROWN
BLACK 
IGNITION SWITCH
POSITION | CIRCUIT | “MAKE” |
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OFF | M+G+A1 | NONE |
RUN/LIGHT | B+A1 | A2+L |
RUN | B+A1 | NONE |
START | B + S + A1 | NONE |
WIRING INSULATED CLIPS
NOTE: IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT, THEY SHOULD BE REPLACED TO PROPERLY SECURE YOUR WIRING.
PTO SWITCH
POSITION | CIRCUIT |
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OFF | C + G, B + H |
ON | C + F, B + E, A + D |
CONNECTIONS CONNECTIONS
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| HEADLIGHTS | |
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| 87 |
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| H |
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86 87A |
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85 |
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30 |
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RELAY
G F C
E 
D A
B
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