Service Manual

Greensmaster 3300/3400Page 6 − 50Electrical System

Fuel Solenoid (Greensmaster 3400 machines)

The fuel solenoid used on Greensmaster 3400 ma-

chines must be energized for the diesel engine to run.

The fuel solenoid is mounted to the injection pump on

the engine (Fig. 66). The Toro Electronic Controller

(TEC) energizes the fuel solenoid when the ignition

switch is in either the RUN or START position.

The fuel solenoid includes two (2) coils for operation: the

pull coil and the hold coil. When the ignition switch is

turned to START, the fuel solenoid pull coil is energized

and the solenoid plunger retracts. Once the plunger is

retracted, the hold coil will keep it retracted for continued

engine operation. When the solenoid is de−energized,

the plunger extends to shut off fuel supply to the engine

causing the engine to stop running.

NOTE: A fusible link in the machine wire harness pro-

tects the fuel solenoid pull coil circuit. If this link should

fail, the fuel solenoid will not function and the engine will

not run. Refer to electrical drawings in Chapter 10 −

Foldout Drawings when troubleshooting the fuel sole-

noid.

NOTE: See Kubota Workshop Manual, Diesel Engine,

SM−E3B Series for information regarding fuel solenoid

testing procedure.

Figure 66

1. Engine assembly 2. Fuel stop solenoid