Troubleshooting
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this machine (see Chapter 9 --
Electrical Diagrams).
CAUTION
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.
If the machine has any interlock switches by--passed,
reconnect the switches for proper troubleshooting and
safety.
Starting Problems
Problem
Possible Causes
All electrical power is dead, including gauges.
The battery charge is low.
Fuse 1 to the ignition switch is open (failed).
Bad ground connection on machine.
The ignition switch or circuit wiring is faulty.
The fusible link from the battery is faulty.
Low battery charge.
Starter solenoid clicks, but starter will not crank.
NOTE: If the solenoid clicks, the problem is not in the in-
terlock circuit.
Loose or corroded battery cables.
Loose or corroded ground.
Faulty wiring at the starter.
Faulty starter solenoid.
Faulty starter.
Nothing happens when start attempt is made. Control
panel lights and gauges operate with the ignition
switch in ON.
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 motor is faulty.
Engine starts, but stops when the ignition switch is
released from the START position.
The engine run solenoid is out of adjustment or circuit
wiring is faulty.
High temperature shutdown switch or circuit wiring is
faulty.
Groundsmaster 4500--D/4700--D
Page 5 -- 3
Electrical System (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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