Troubleshooting
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits (see
Chapter 8 – Electrical Diagrams) and components used
on this machine.
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,
they must be reconnected for proper troubleshooting
and safety.
Starting Problems
Problem
Possible Causes
Starter solenoid clicks, but starter will not crank
(if solenoid clicks, problem is not in safety interlock
system).
Battery charge is low.
Battery cables are loose or corroded.
Battery ground to frame is loose or corroded.
Wiring at starter is faulty.
Starter solenoid is faulty.
Starter mounting bolts are loose or not supplying a
sufficient ground for solenoid.
Starter is faulty.
Nothing happens when start attempt is made (traction
lever must be in neutral position for successful start).
Traction lever is not in the neutral position.
Battery cables are loose or corroded.
Battery ground to frame is loose or corroded.
Battery is dead.
Fuse F1 (20 amp) is open.
Wiring to start circuit components is loose, corroded, or
damaged (see Chapter 8 – Electrical Diagrams).
Neutral proximity switch is out of adjustment or faulty.
Sensing plate on traction lever is loose.
Neutral switch relay is faulty.
Ignition switch is faulty.
Fuse block is faulty.
Starter solenoid is faulty.
Electrical System
ProCore 648
Page 5 – 8
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro 648 |
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| Document Type | Service Manual |
| Language | English |
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