Troubleshooting; Starting Problems - Toro Groundsmaster
4000?D Service Manual

PRELIMINARY – For Toro Distributor and Toro Company use only.

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
All electrical power is dead, including gauges.
Starter solenoid clicks, but starter will not crank.
NOTE: If the solenoid clicks, the problem is not in the in-
terlock circuit wiring.
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.
Groundsmaster 4000−D
CAUTION
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this machine (see Chapter 9 −
Foldout Drawings).
If the machine has any interlock switches by−passed,
reconnect the switches for proper troubleshooting and
safety.
Possible Causes
The battery charge is low.
The 10 amp fuse to the ignition switch is open.
Bad ground connection on machine.
The ignition switch or circuit wiring is faulty.
The fusible link from the battery is faulty.
Low battery charge.
Loose or corroded battery cables.
Loose or corroded ground.
Faulty wiring at the starter.
Faulty starter solenoid.
Faulty starter.
The traction pedal is not in neutral position or the
neutral switch or circuit wiring is faulty.
The cutting units are engaged.
Faulty ignition switch or circuit wiring.
Start relay or circuit wiring is faulty.
Starter solenoid or starter is faulty.
The fuel run solenoid is out of adjustment or circuit
wiring is faulty.
High temperature shutdown switch or circuit wiring is
faulty.
Page 5 − 5 Electrical System