Yanmar 4LHA-HTP Operation Manual page 631

Chapter 9 Electrical System
3. Starter Motor
3. Starter Motor
The starter motor is installed on the flywheel housing.
When the starting button is pushed, the starter motor
pinion flies out and engages the ring gear of the flywheel.
Then the main contact is closed, current flows, and the
engine is started.
After the engine starts, the pinion automatically returns to
its initial position when the starting button is released.
Once the; engine starts, the starting button should be
released immediately. Otherwise, the starter motor may be
damaged or burned out.
1 Specifications and Performance
Engine model
Model
Rating (sec.)
Output (kW)
Direction of rotation
(viewed from pinion side)
Mass kg
Clutch system
Engagement system
No. of pinion teeth
Pinion flyout voltage (V)
Terminal voltage (V)
Current (A)
No-load No-load No-load
Speed (rpm)
Terminal voltage (V)
Current (A)
Loaded Loaded Loaded Loaded
characteristics characteristics characteristics characteristics
Speed (rpm)
Torque N(kgf) m
i f i
I I I
3 « «
o
58.8(6) 12
6000
3.0
10
49.0(5) 5000
2.5
39.2(4)-
4000
2.0
29.4(3)
1.5
19.6(2) 2000
1.0
9.8(1)
1000
0.5
0
0
0
0 100 200
S 1 3 - 4 1 A Performance curves
All
S13-41A
30
2.5
Clockwise
7.3
Overrunning
Magnetic shift
15
8 or less
12
150 or less
3800 or greater
8.25
500A
1000 or greater
19.6 (2.0)
or greater
Battery Y 160-10, -201 4/4 Charge
Battery Y 160-ia 15 "C 2/4 Charge
Ou put
—
—
/
— . —
//
ft ft
- S/
300 400 500 600 700 8C0 900
Current (A)
2 Features
(1) The starter motor is compact and produces high ou
through high speed revolutions. It has increased toi
with employing a reduction gear to reduce the sp
between the armature and the pinion.
(2) The use of ball bearings at the armature shaft (front
rear sides) and the needle bearings for the gear s
(rear side) has boosted the durability of the starter
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V .
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1000 1100 1200
9-7
M4LHA Ser