Table of Contents
Advertisement
MECHANISM
8. Electrical system
8.6.3 Function of key switch
Key switch posi-
tion
•
Power supply is turned OFF and en-
OFF
gine is stopped
•
Key can be inserted and removed
•
All electrical equipment can be used
•
Engine operating position
ON
•
Pre-heats combustion chamber (de-
pending on vehicle type)
•
Starters rotates and starts the engine
Start (ST)
•
When the hand is removed it automat-
ically returns to the ON position
•
Accessories can be used while engine
ACC
is stopped
•
Pre-heats engine combustion cham-
Preheat (glow)
ber (depending on vehicle type)
8.6.4 Specification of key switch
Specification is different depending on the OEM
installed so reference the installed OEM specification
for details.
A standard contact connections table for Kubota is
given below.
Contact connections table
03-CR-E4,03-CR-TE4BG
Operation
8.7 Starter (Planetary gear reduction
type)
8.7.1 Outline of starter (planetary gear
reduction type)
The starter uses electric power from the battery to start
the engine.
8.7.2 Structure of starter (planetary gear
reduction type)
The starter is made up of a magnet switch (3), various
gears (4), (7), (8), shaft (6) and the like.
(1) Front bracket
(2) Drive lever
(3) Magnetic switch
(4) Pinion gear
(5) Overrunning clutch
8.7.3 Function of starter (planetary gear
reduction type)
The starter uses electric power from the battery to start
the engine.
Start flow
1. When the key switch is rotated to the start position,
current flows from the battery to the starter.
2. Upon receiving current, the starter motor rotates
and a pinion gear engages and starts to rotate.
3. The pinion gear meshes with the ring gear
(flywheel) and causes the flywheel to rotate.
4. The crankshaft that is connected to the flywheel
rotates, and the engine starts.
4. ENGINE
(6) Armature shaft
(7) Outer gear
(8) Planetary gear
(9) Armature
4-71
KiSC issued 02, 2021 A
Advertisement
Chapters
Table of Contents
