Troubleshooting
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this machine (see Electrical Dia-
grams -- Chapter 8).
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.
NOTE: UsetheStandardControlModuleinputandout-
put LED’s when troubleshooting a Groundsmaster
3505--D
electrical problem.
Starting Problems
Problem
Possible Causes
Starter solenoid clicks, but starter will not crank
(if solenoid clicks, problem is not in safety interlock
system).
Low battery charge.
Loose or corroded battery cables.
Loose or corroded ground.
Faulty wiring at the starter.
Faulty starter solenoid.
Nothing happens when start attempt is made.
The traction pedal is not in neutral position or the
traction neutral switch is faulty or out of adjustment.
Parking brake is disengaged with seat unoccupied.
PTO switch is in the ENGAGE position or is faulty.
The engine is too hot or the over temperature shut
down switch is faulty.
The battery is dead.
Fuse F1 or F3 is faulty or blown.
Loose or corroded battery or ground cables.
Loose or corroded ground.
Wiring in the crank circuit is loose, corroded or
damaged (see Electrical Diagrams -- Chapter 8).
The ignition switch is faulty.
Starter solenoid wiring is loose, corroded or damaged.
Starter solenoid is faulty.
The standard control module is faulty.
Electrical System
Page 5 -- 4
Groundsmaster 3505--D
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