Starting Problems - Toro Groundsmaster 4700-D Service Manual

Starting Problems

Problem
No electrical power to machine (including gauges).
Starter solenoid clicks, but starter will not crank.
NOTE: If the solenoid clicks, the problem is not in the in-
terlock circuit.
Nothing happens when start attempt is made. Control
panel lights and gauges operate with the ignition
switch in ON.
Engine starts, but stops when the ignition switch is
released from the START position.
Electrical System
Possible Causes
Battery is discharged.
Battery cables are loose or corroded.
Ground connection on machine is loose or corroded.
The ignition switch or circuit wiring is faulty.
Battery is discharged.
Battery cables are loose or corroded.
Ground connection on machine is loose or corroded.
Wiring at the starter is faulty.
Starter solenoid is faulty.
Starter is faulty.
The traction pedal is not in neutral position.
Operator seat is unoccupied OR the parking brake is
not applied.
The PTO switch is ON (engaged).
Fuse F1--1 (20 amp) is faulty (open).
TEC--5002 fuses are faulty.
The traction neutral switch or circuit wiring is faulty.
Seat switch or circuit wiring is faulty.
Ignition switch or circuit wiring is faulty.
Parking brake switch or circuit wiring is faulty.
Start relay or circuit wiring is faulty.
Starter solenoid or starter motor is faulty.
TEC--5002 controller is faulty.
The engine run solenoid or circuit wiring is faulty
(solenoid pull coil operates but hold coil is faulty).
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