Fuel Pump; Engine Stop Solenoid - Kubota ZD221-48 Workshop Manual

ZD221, WSM
ELECTRICAL SYSTEM
[5] FUEL PUMP
An electro magnetic fuel pump uses a transistor that
causes the pump to start pumping fuel when the main
switch is turned to the "ON" position.
Therefore, fuel is supplied to the fuel injection pump
regardless of engine speed. This pump is driven by the
battery. It can therefore be operated even with the
engine being stopped.
A: Inlet 8: Outlet
W1013306
3TAAAAB9P008A
[6] ENGINE STOP SOLENOID
AS
~
3TAAAAB9P009A
Controller is provided to actuate the engine stop
solenoid approx. 10 seconds to stop after the main
switch is turned from ON position to OFF position.
Flowing of the battery current into the coil while the
controller's timer works attracts the plunger to actuate
the stop lever or control rack of the injection pump.
When the battery current stops, the plunger is returned
to the original position by the spring.
a:
ON
[A] ZD321 , ZD323
b: OFF [8] ZD326, ZD331
W1013394
5-M6