Toro 3100 manual Troubleshooting, Condition Cause Correction

Troubleshooting

CAUTION

Remove all jewelry, especially rings and watches, before doing any electrical trou- bleshooting. Disconnect battery cables un- less the test requires battery voltage.

For effective troubleshooting and repairs, you must have a good understanding of the electrical circuits and components used. Tools such as a volt/ohm multimeter will help find problems in the circuitry.

Studying the operating characteristics preceding an electrical failure will help in identifying the area of diffi- culty. Try to isolate the failure to a specific functional system; then check that area, repairing one component at a time. Attempting to repair two systems at once will lead to confusion.

NOTE: The interlock switches are described as nor- mally open (NO) or normally closed (NC). The NC-NO description indicates the switch contact position with the switch installed in the machine with MOW OFF, TRANSMISSION in NEUTRAL, and OPERATOR OFF of seat. Should the machine being repaired have these components by-passed, they should be reconnected for proper troubleshooting and safety.

Condition	Cause	Correction
1. Engine starts (but should not)	Traction switch adjusted incorrectly	Adjust or replace traction switch.
when shift selector is in gear.	or is malfunctioning.
2. Engine starts (but should not)	Mow/lift switch adjusted incorrectly	Adjust or replace mow/lift switch.
when mow pedal is depressed	or is malfunctioning.
(reels engaged).
3. Engine fails to crank, regard-	Mow/lift switch and/or traction	Adjust or replace traction switch
less of shift selector or mow	switch out of adjustment or mal-	and/or mow/lift switch.
pedal position.	functioning.
	Loose or corroded battery connec-	Clean and tighten connections.
	tions.
	Mow/lift switch or traction switch	Check wires and connect prop-
	wires are loose.	erly.
	Battery is dead.	Charge or replace battery.
	Starter solenoid is malfunctioning.	Replace solenoid.
	Ignition switch is malfunctioning.	Replace ignition switch.
	Starter is malfunctioning.	Replace or repair starter.
	Engine is seized.	Repair engine.
	Key switch, ammeter or solenoid	Connect wires.
	wires loose.
4. Engine fails to crank with con-	Wiring harness connected wrong.	Connect wiring harness correctly:
trols in “neutral” when operator is		refer to Electrical Schematic.
off seat, but does crank when op-
erator is on seat.	Wiring harness malfunctioning.	Install new wiring harness.

Troubleshooting Page 5 - 6 Greensmaster® 3100