Testing The Starter - Westerbeke 9.0 BCG Technical Manual

Testing the Starter
The starter motor is a reduction gear type with activation solenoid mounted on it.
Performance Specifications
Voltage
Current
Torque
Speed
No-load Performance 11.5 V
Mal( 90 A
~
Min. 3300 rpm
Loaded Performance
7.7 V 300 A Min. 0.93 kg-m Min. 850 rpm
Stall Performance 4 V Mil( 570 A Min. 2.5 kg-m
----------
Rated Output
12 kw (12 V)
435 kg
CAUTION
If an engine fails to turn over when the starter circuit is energized, it's not always a starter
problem. The cause of the problem may be related to something else, such as water in the
cylinders causing a hydraulic lock or a faulty starter switch in the panel. In the event the starter
fails to turn the engine over, check the engine and starter circuit. If no fault is found, remove
the starter and test it.
Standard Value
1. Starter Circuit
Descripton
A. Charged condition of battery
No-load char-
B. Tightened condition of battery terminals
acteristics
C. Tightened condition of starter terminals
of starter
D. Condition of wiring (grounded or broken)
E. Grounded condition of starter
(Battery
voltage:
1l.5~
2. No-load Test
Connect the starter with the battery as illustrated and
close the switch to turn the starter.
The starter must turn lightly at the current and speed
shown at the right when the battery voltage is 11.5
volts.
If any abnormality has been found, make the follow-
ing inspections.
Westerbeke Generators 128
Qurr~nt Sll~~d
1.61<N'J
100 A or less 3,000 rpm
Q[
mQr~
2.0 I<N'J 180A or less 3,300 rpm
Qr
mQr~
Switch