Troubleshooting
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this machine (see Chapter 10 --
Foldout Drawings).
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.
NOTE: UsetheInfoCenterDisplay whentroubleshoot-
ing a Groundsmaster 5900 or 5910 electrical problem.
Starting Problems
Problem
Possible Causes
All electrical power is dead, including Info Center
Display.
Batteries are discharged.
Battery cables are loose or corroded.
Fuse 1F1 (5 amp) to the ignition switch is faulty.
Ignition switch or circuit wiring is faulty.
Batteries are discharged.
Starter solenoid clicks, but starter will not crank.
NOTE: If the starter solenoid clicks, the problem is not
in the interlock circuit.
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.
Engine starts, but stops when the ignition switch is
released from the START position.
Engine or fuel system is malfunctioning (see Chapter 3
- Cummins Diesel Engine).
Engine cranks, but does not start.
Engine and/or fuel may be too cold.
Fuel tank is empty.
Engine or fuel system is malfunctioning (see Chapter 3
-
Cummins Diesel Engine).
Hydraulic load is slowing engine cranking speed.
Engine cranks, but should not, when the traction pedal Traction pedal potentiometer is out of adjustment.
is depressed.
Traction pedal potentiometer or circuit wiring is faulty.
Electrical System
Page 5 -- 6
Groundsmaster 5900/5910
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Document Type | Service Manual |
| Language | English |
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| Publisher | toro.com |
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