Toro TimeCutter SW4200 Service Manual page 8

TABLE OF CONTENTS
7 - Electrical
Chassis Switches ............................................................................................................................................7-1
Key/Ignition Switch ..........................................................................................................................................7-1
Purpose .....................................................................................................................................................7-1
Location ....................................................................................................................................................7-1
How It Works .............................................................................................................................................7-1
Testing .......................................................................................................................................................7-1
PTO Switch ......................................................................................................................................................7-2
Purpose .....................................................................................................................................................7-2
Location ....................................................................................................................................................7-2
How It Works .............................................................................................................................................7-2
Continuity Testing ......................................................................................................................................7-3
Seat Switch......................................................................................................................................................7-4
Purpose .....................................................................................................................................................7-4
Location ....................................................................................................................................................7-4
How It Works .............................................................................................................................................7-4
Testing .......................................................................................................................................................7-4
RH and LH Neutral Switch...............................................................................................................................7-5
Purpose .....................................................................................................................................................7-5
Location ....................................................................................................................................................7-5
How it Works .............................................................................................................................................7-5
Testing .......................................................................................................................................................7-5
Brake Actuator Module ....................................................................................................................................7-6
Purpose .....................................................................................................................................................7-6
Location ....................................................................................................................................................7-6
Brake Actuator Module Replacement ..............................................................................................................7-7
Brake Actuator Module Removal ..............................................................................................................7-7
Brake Actuator Module Installation ...........................................................................................................7-8
Testing and Diagnostic ....................................................................................................................................7-8
Brake Actuator Module Diagnostic Tips: ........................................................................................................7-10
Test: ........................................................................................................................................................7-10
Starter Solenoid & Starting System ............................................................................................................... 7-11
Purpose ................................................................................................................................................... 7-11
Location .................................................................................................................................................. 7-11
How It Works (solenoid only) .................................................................................................................. 7-11
Starter Solenoid Testing (solenoid only).................................................................................................. 7-11
Starter Solenoid Circuit & Operation .......................................................................................................7-12
Starting System Schematic ...........................................................................................................................7-13
Electric PTO Clutch .......................................................................................................................................7-14
Purpose ..................................................................................................................................................7-14
Location ..................................................................................................................................................7-14
How It works ...........................................................................................................................................7-14
Testing .....................................................................................................................................................7-14
Coil Resistance Measurement ................................................................................................................7-14
PTO Clutch Continuity to Ground Check ................................................................................................7-15
Measuring Clutch Current Draw ..............................................................................................................7-15
PTO Clutch Electrical Specifications .......................................................................................................7-15
PTO Circuit & Operation .........................................................................................................................7-16
PTO Circuit Schematic ..................................................................................................................................7-17
PTO Clutch Replacement ..............................................................................................................................7-18
PTO Clutch Removal ..............................................................................................................................7-18
TOC-4
Toro
TimeCutter SS/MX/ZS
Service Manual