Electrical System; Starting System; General; Starter - Kubota WG1605-G-E3 Workshop Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM

6. ELECTRICAL SYSTEM

[1] STARTING SYSTEM

(1) General

The starting device is composed of the starter, starter switch, fuse, battery etc., and the outline of the basic
operation is as the followings;
1. Voltage from battery is added to the B terminal of starter switch through the fuse.
2. If the starter switch is turned on, B terminal will be connected to AC, and the electrical current will flow to each
load.
3. If the starter switch is turned to the starting position, B terminal will be connected to AC, 19, and 50 will be
connected to the ST terminal of starter (in case of the type with safety relay, it shall be connected via relay) to
start the engine.
4. After the engine is started, if you have let your hand off the starter switch, it automatically returns to ON position.

(2) Starter

[A] P Type Starters
• The P type starters are reduction type starters that
uses a planetary gears. The P types use the same
type of compact, high-speed motor as the reduction
type, and have planetary gears between the clutch
and armature.
As a result, a more compact and lightweight starter
design has been achieved.
• To engage with the engine, the magnetic switch
moves the clutch forward via the drive lever.
The clutch slides along a shaft (planetary carrier
shaft) connected to the planetary gears.
• The P type starters are equipped with shock
absorbers that reduce the shock generated during
starter actuation.
(1) Clutch
(2) Drive Lever
(3) Magnetic Switch
(4) Armature
(5) Field Coil
Starter Switch ON
When the starter switch is on, current flows to both
the pull-in coil PC and holding coil HC, and the plunger
is pulled in by the electromagnetic force generated in
both coils.
The pinion gear is thus pushed out to the left, and
engages with the ring gear.
(1) Ring Gear
(2) Pinion Gear
(3) Drive Lever
1-M19
ENGINE
9Y1210661ENM0037US0
(6) Planetary Gear
(7) Internal Gear
(8) Sun Gear
(9) Pinion Gear
9Y1210661ENM0038US0
(4) Starter Switch
(5) Plunger
(6) Planetary Gear
9Y1210661ENM0039US0
KiSC issued 01, 2012 A