Maintenance Instructions |
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| ELECTRICAL SYSTEM | |||||||||
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| WALKER MODEL MDD | ||||
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| Beginning S/N | ||||
Wiring Diagram - Model MDD |
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| IGNITION SWITCH CIRCUITS | ||||||||
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| OFF |
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| ALL OPEN | ||||||
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| GLOW PLUG |
| 30 + 19 + AC | ||
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| START |
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| 30 + 17 + 50 + AC | |
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| RUN |
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| 30 + AC | |
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| FUEL |
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| 30 = BATTERY |
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| PUMP |
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| GRASS PAK R |
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| 17 = START / REVERSING MODULE | ||||||
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| SWITCH |
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| 19 = GLOW PLUGS |
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| BLK |
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| 50 = START |
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| BLK/WHT |
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| BLK/WHT | BLK |
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| AC = FUEL PUMP, FUEL SOLENOID | |||||||
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| BLK/WHT |
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| GAUGES, AND FAN |
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| YEL |
| POWERFIL R |
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| RED | BLK |
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| RELAY - A |
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| MOTOR |
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| FUEL SOLENOID START RELAY (PULL) | |||||
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| OFF |
| 30 + 87A |
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| GLOW PLUG | 30 + 87 |
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| BLK/WHT | BLK/WHT |
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| START |
| 30 + 87 |
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| RUN |
| 30 + 87 |
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| BLK |
| BLK | - |
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| RELAY - B |
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| HORN |
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| WARNING RELAY | |||
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| + |
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| OFF |
| 30 + 87A |
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| YEL |
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| GLOW PLUG | OPEN |
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| RED ALTERNATOR |
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| START |
| 30 + 87A |
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| RED |
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| RUN |
| 30 + 87A |
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| STARTER |
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| RELAY - C |
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| ORG |
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| FUEL SOLENOID RUN RELAY (HOLD) | |||||
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| STARTER SOLENOID |
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| PUR | WATER | GRN | GRN | WATER | GRN | OFF |
| OPEN |
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| TEMP |
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| GLOW PLUG | 30 + 87 |
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| SWITCH 1/4" |
| SWITCH 3/8" |
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| BLU/RED | WATER TEMP |
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| GRN |
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| START |
| 30 + 87A |
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| GAUGE SENDER |
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| RUN |
| 30 + 87A |
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| YEL/GRN OIL PRESSURE |
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| GRA |
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| RELAY - D |
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| SWITCH |
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| FAN SPEED CONTROL | |||||||
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| RELAY - D | |||||||
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| OFF |
| 30 + 87A |
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| YEL | 85 30 86 | GRN |
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| BRN | RUN (LOW) | 30 + 87A |
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| BLK |
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| RUN (HIGH) | 30 + 87 |
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| 87 |
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| GLOW PLUGS |
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| 87A |
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| RELAY - E |
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| GRA |
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| ORG |
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| FAN |
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| START/TIME DELAY RELAY | |||||
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| WHT |
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| OFF |
| 30 + 87A |
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| ORG |
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| BLK BLK |
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| START |
| 30 + 87A |
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| RED/BLK | RED |
| FUEL |
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| RESISTOR |
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| PTO ON |
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| BLK | BLK | SOLENOID |
| ENGINE |
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OPTIONAL |
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| OPTIONAL |
LIGHT | RED |
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| RED |
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| BLK |
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| YEL/GRN |
| YEL/GRN |
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| YEL/GRN |
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| GRA |
| GRA |
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| YEL |
| YEL |
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| ORG/WHT |
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| BLU/RED |
| BLU/RED |
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| PUR |
| PUR |
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| PUR |
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| VOLTAGE |
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| RED |
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| RED |
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| METER |
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| RED |
| RED | GRA |
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| RED |
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| G | I |
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| LIGHTS |
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PTO |
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| BLK | WATER | RED |
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INTERLOCK |
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| HOUR |
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| TEMP |
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SWICH |
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| METER |
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| BLK/WHT |
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| + - | BLK | BLK |
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| G | I |
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| BLU/RED |
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BLK |
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| RED |
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BLK |
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| GRA |
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| RED | 10 AMP |
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| CIRCUIT | YEL |
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| YEL | YEL |
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GRN | TIME |
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| BREAKER |
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| RED | RED |
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| DELAY |
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MODULE |
| BLK | RED/BLK |
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| BLK |
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| YEL/RED | 30 |
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| OIL |
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| 85 |
| 86 |
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| BRN | BRN |
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| ORG/WHT |
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| 87 |
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| GRN |
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| 87A | BLU | LIGHT |
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| YEL |
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| RED |
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| ORG |
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| RED | 7 AMP |
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| RELAY - B |
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| GRN |
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| RED |
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| CIRCUIT |
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| SEAT |
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| RED |
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| RED | BREAKER |
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| 87 |
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| SWITCH |
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GRN | RED |
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86 |
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85 | BLK |
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| ORG | WATER |
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| RELAY - A | TEMP |
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| 30 |
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| LIGHT |
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RELAY - C |
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| RED | 30 |
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| GRA |
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| 85 |
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| RED | 30 AMP | RED | REVERSING BRN |
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| 86 |
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| PUR |
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| ORG |
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| CIRCUIT |
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RED |
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| MODULE | ORG/WHT |
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| 87 |
| 87A | ORG |
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| BREAKER |
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| BLK/WHT |
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| + | RED | 40 AMP RED | BLK |
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| YEL/GRN |
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| YEL/RED |
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| BLU |
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| CIRCUIT |
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| PUR |
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| 17 |
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| BREAKER |
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| AC |
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| RED | 19 |
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| 30 |
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| |
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| BLK |
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| BRN | BRN |
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| RED | ||||
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| GRA |
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BATTERY |
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| PUR |
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| |||
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| FSC |
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| 87A |
| IGNITION |
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| |
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| - |
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| 85 |
| 86 |
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| |
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| NEUTRAL |
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| BLK |
| RED |
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| INTERLOCK |
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| WARNING |
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| 30 |
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| |||||
| _ | BLK |
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| |||||||
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| SWITCH |
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| HORN | BLU |
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| ||||
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| + |
| RELAY - E |
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| FOR | |||
BLK |
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| ORG/GRN |
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| TAIL | ||
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| WHEEL |
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| CHASSIS |
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| RED | LOCK | ||
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| GROUND |
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84