Fuel System; Governor - Nanni 5.280HE Workshop Manual

03-M Series, WSM

3. FUEL SYSTEM

[1] GOVERNOR

The governor serves to keep engine speed constant
by automatically adjusting the amount of fuel supplied to
the engine according to changes in the load. This engine
employs an all-speed governor which controls the
centrifugal force of the steel ball (1) weight, produced by
rotation of the fuel camshaft (5), and the tension of the
governor spring 1 (7) and 2 (8) are balanced.
(1) Steel Ball
(2) Governor Sleeve
(3) Steel Ball
(4) Governor Ball Case
(5) Fuel Camshaft
(6) Governor Lever
At Start
Flowing of the battery current into the engine stop
solenoid (16), the plunger (17) is actuated to arrow
direction.
Since the steel ball (1) have no centrifugal force, the
control rack (14) is pushed to the right by the start spring
(13). Accordingly, the control rack (14) moves to the
maximum injection position to assure easy starting.
(13) Start Spring
(14) Control Rack
(15) Injection Pump
(16) Engine Stop Solenoid
M-4
DIESEL ENGINE
(7) Governor Spring 1
(8) Governor Spring 2
(9) Fork Lever 2
(10) Fork Lever 1
(11) Fork Lever Shaft
(12) Fork Lever Holder
W1017186
(17) Plunger
(18) Guide
(19) Idling Apparatus
W1017215
KiSC issued 08, 2012 A