Yanmar 4JH2E Service Manual page 335

Chapter 9 Ekctrical System
3. Starter Motor
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7. Operation S;ecifications Check
Perform the no-load test as instructed because this provides an easy way to confirm the
specifications.
Note: The rating is 30 seconds, so perform the test quickly.
(1)
The No-load Test
Set the starter securely on a test bench and lay the lines as shown in fig. 36. When the
switch is turned off, the electric current flows into the starter in no-load operating
conditions. With the electric current flowing, measure the voltage and the r.p.m. and see
whether they satisfy the specifications.
Switch
A~mm_e_t_er~cL8
D
IT\
Voltmeter
If..,~--
D
e
Battery
8 EB
Fig. 36
The No-load Test
9-24
Printed in Japan
AOA1029-9002