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

Troubleshooting

CAUTION
Remove all jewelry, especially rings and
watches, before doing any electrical trouble-
shooting or testing. Also, 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.
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
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 safety and efficient trouble-
shooting.
Possible Causes
The traction pedal is not in the neutral position.
The battery is discharged.
Fuse A2 (10 amp) to the ignition switch is faulty.
Bad ground connection on machine.
The ignition switch or circuit wiring is faulty.
The neutral switch or circuit wiring is faulty.
The fusible link from the battery is faulty.
The battery is discharged.
The battery cables are loose or corroded.
A ground wire or cable is loose or corroded.
Wiring at the starter motor is faulty.
The starter solenoid is faulty.
The starter is faulty.
The traction pedal is not in the neutral position.
The cutting decks are engaged.
The ignition switch or circuit wiring is faulty.
The neutral switch or circuit wiring is faulty.
The start relay or circuit wiring is faulty.
The starter solenoid or starter is faulty.
The engine fuel run solenoid or circuit wiring is faulty.
The high temperature shutdown switch or circuit wiring
is faulty.
Page 5 - - 5 Electrical System