Starting Problems - Toro Groundsmaster 5900 Series Service Manual

Starting Problems

Groundsmaster ® 5900 & 5910
16227SL Rev B
Remove all jewelry, especially rings and watches, before doing any
electrical troubleshooting or testing. Also, disconnect the battery
cables unless the test requires battery voltage.
For effective troubleshooting and repairs, you must have a good understanding
of the electrical circuits and components used on this machine (see
(page A–1)).
If the machine has any interlock switches by−passed, reconnect the switches
for proper troubleshooting and safety.
Note: Use the InfoCenter Display when troubleshooting a Groundsmaster 5900
or 5910 electrical problem.
Check the InfoCenter Display for any operator advisories or faults that may
appear. Use the InfoCenter Display Diagnostics feature to help identify the
problem (see DIAGNOSTICS SCREENS (page
Problem
All electrical power is dead, including
InfoCenter Display.
Starter solenoid clicks, but starter will not
crank.
Note: If the starter solenoid clicks, the problem
is not in the interlock circuit.
CAUTION
Possible Cause
Battery−Disconnect switch is in the OFF
position.
Batteries are discharged.
Battery cables are loose or corroded.
Fuse M2 (60 Amp) is faulty.
Fuse F−D3 (10 amp) to the key switch is faulty.
Fuse F−D1 (2 Amp) is faulty.
Fuse F−D2 (2 Amp) is faulty.
A faulty ground connection exists on machine.
Key switch or circuit wiring is faulty.
Batteries are discharged.
Battery cables are loose or corroded.
Ground cable is loose or corroded.
Wiring at the starter motor is faulty.
Starter solenoid or starter motor is faulty.
Page 3–9
Appendix A
6–22)).
Troubleshooting: