Kubota WG1605-G-E3 Workshop Manual page 75

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM
When the Pinion Gear Engages with the Ring Gear
without Collision
When the pinion gear engages with the ring gear at
a certain position, the magnetic switch main contact
closes, and a large current flows through the main
contact to the armature.
The force of the armature spiral spline pushes the
pinion gear forward, engaging the pinion gear with the
ring gear to start the engine.
(1) Ring Gear
(2) Pinion Gear
(3) Clutch
When the Pinion Gear and Ring Gear Collide
If the pinion gear and ring gear teeth contact, the
pinion gear cannot move any further. If this happens, the
magnetic switch drive spring compresses, and the
magnetic switch contact closes. As a result, the
armature rotates at high torque, and the teeth alignment
position slides. The compression force of the drive
spring and the force of the armature spiral spline move
the pinion gear forward, engaging the pinion gear with
the ring gear to start the engine.
(1) Ring Gear
(2) Pinion Gear
(3) Drive Gear
(4) Drive Spring
When the Engine is Started
When the engine starts, the clutch idles to prevent
the ring gear from driving the armature in reverse.
Starter Switch OFF
When the starter switch is turned OFF, the magnetic
switch attraction is cancelled and the pinion gear is
returned by the magnetic switch return spring.
The main contact then opens, interrupting the flow of
current to the armature.
(1) Ring Gear
(2) Pinion Gear
(3) Starter Switch
1-M21
ENGINE
(4) Starter Switch
(5) Armature
9Y1210661ENM0040US0
(5) Starter Switch
(6) Armature
(7) Planetary Gear
9Y1210661ENM0041US0
9Y1210661ENM0042US0
(4) Armature
(5) Planetary Gear
9Y1210661ENM0043US0
KiSC issued 05, 2014 A