Starting Problems - Toro GroundsmasterR 4300-D Service Manual

Starting Problems

Problem
No electrical power to machine (including gauges).
Starter solenoid clicks, but starter will not crank.
NOTE: If the starter solenoid clicks, the problem is not
in the interlock circuit.
Engine starts, but stops when the ignition switch is
released from the START position.
Engine cranks, but does not start.
Electrical System
Possible Causes
Battery is discharged.
Ignition switch or circuit wiring is faulty.
Fusible link harness at the engine starter motor is
faulty.
Battery cables are loose or corroded.
Fuse F1--1 (15 amp) or F1--2 (10 amp) is faulty.
Battery is 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.
Engine fuel stop solenoid or circuit wiring is faulty (pull
coil operates but hold coil is faulty).
Engine and/or fuel may be too cold.
Fuel tank is empty.
Glow plugs or circuit wiring are faulty.
Engine fuel stop solenoid or circuit wiring is faulty.
Engine or fuel system is malfunctioning (see Chapter 3
- Kubota Diesel Engine).
Hydraulic load is slowing engine cranking speed
(disconnect hydraulic pump drive shaft from engine to
test).
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