Starting Motor; Specifications; Characteristics - Yanmar 3YM30 Service Manual

12. Electrical System

12.3 Starting motor

A starting motor turns the ring gear installed on a engine flywheel by the pinion while overcoming
resistance such as the compression pressure and the friction loss of the engine and makes the engine
start.

12.3.1 Specifications

YANMAR Part No.
HITACHI Model No.
Nominal power (kW)
Nominal voltage (V)
Rating (sec)
Direction of rotation
(Looking from the pinion side)
Number of pinion teeth
Weight (kg)
No load Terminal voltage (V)
Electric current (A)
Revolutions (min
Load Terminal voltage (V)
Electric current (A)
Torque (N•m)
Revolutions (min

12.3.2 Characteristics

2.4
2.0
1.6
1.2
0.8
0.4
0
129608-77010
S114-817A
1.4
12
30
Clockwise
3.0
90 (MAX)
2,700 (MIN)
-1
)
8.4
250
8.3 (MIN)
1,000 (MIN)
-1
)
Standard Performance 12V 1.4kW
48 6000 12
40 5000 10
32 4000 8
24 3000 6
16 2000 4
8 1000 2
0 0 0
0
11
11
V
kW
min -1
200 400
Current (A)
186
N m
600 800