Simplicity Coronet Series Service & Repair Manual page 40

SECTION CONTENTS
Introduction
Tools Needed .....................................................................................5-2
System Description ............................................................................5-2
Principals Of Operation
Ignition System ...................................................................................5-2
Charging System ................................................................................5-2
Cranking System ................................................................................5-2
Safety Interlock System......................................................................5-2
Checking Out The System
General...............................................................................................5-3
Test Series .........................................................................................5-3
Electrical System Exploded View Diagram
1. Checking the Power Supply / Fuel Solenoid
A. Wiring .............................................................................................5-6
B. Battery Tests ..................................................................................5-6
C. Battery Cables ...............................................................................5-7
D. Fuel Solenoid Test .........................................................................5-7
2. Isolate Cranking and Safety Systems
3. Testing the Cranking System
A. Test Circuit Breaker .......................................................................5-8
B. Test Power to Ignition Switch.........................................................5-9
C. Test Ignition Switch........................................................................5-9
D. Test Power to Solenoid..................................................................5-10
E. Test Solenoid .................................................................................5-11
F. Solenoid Bench Test ......................................................................5-11
G. Test Power To Starter ...................................................................5-12
4. Test Safety Interlock System
A. PTO Interlock Switch .....................................................................5-13
B. Seat Switch (Mechanical) ..............................................................5-13
C. Seat Switch (Electrical) ..................................................................5-14
D. Clutch/Brake Switch (Mechanical) ................................................5-14
E. Clutch/Brake Switch (Electrical) ....................................................5-14
F. Neutral Safety Switch (Electrical) ...................................................5-15
G. Interlock Module ............................................................................5-15
5. Misc. Tests
A. Hour Meter .....................................................................................5-15
B. Power to Hour Meter ......................................................................5-16
C. Test Electric PTO Clutch ...............................................................5-16
6. Wiring Diagrams
Wiring Diagram...................................................................................5-17
Safety System Diagram......................................................................5-18
4
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5 - 1
5 Electrical Troubleshooting
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