Troubleshooting; Starting Problems - Toro 30821 Service Manual

Troubleshooting

Remove all jewelry, especially rings and
watches, before doing any electrical trouble-
shooting or testing. Disconnect the battery
cables unless the test requires battery voltage.

Starting Problems

Problem
Starter solenoid clicks, but starter will not crank
(if solenoid clicks, problem is not in safety interlock
system).
Nothing happens when start attempt is made.
Electrical System (Rev. G)
CAUTION
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this machine (see Electrical Dia-
grams - Chapter 8).
If the machine has any interlock switches by- passed,
they must be reconnected for proper troubleshooting
and safety.
Possible Causes
Low battery charge.
Loose or corroded battery cables.
Loose or corroded ground.
Faulty wiring at the starter.
Faulty starter solenoid.
The traction pedal is not in neutral position or the
neutral switch is faulty.
Cutting unit drive switch is in the ENGAGE position or
faulty.
Parking brake is disengaged with seat unoccupied.
The engine is too hot or the over temperature shut
down relay is faulty.
The battery is dead.
Fuse F1 or F3 is faulty or blown.
Loose or corroded battery or ground cables.
Loose or corroded ground.
Wiring in the crank circuit (see Electrical Diagrams -
Chapter 8) is loose, corroded, or damaged.
The ignition switch is faulty.
Starter solenoid wiring loose, corroded or damaged.
Starter solenoid is faulty.
The interlock relay is faulty.
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