Bearing Service - Yanmar 6LPA-STP2 Service Manual

Alternator Service
12/05
Rectifier
1. Check the positive rectifier. Connect one of
tester probes of an ohmmeter to the positive (+)
terminal (Figure 11-25, (1)) and the other
probe to the rectifier terminal (Figure
11-25, (2)).
Figure 11-25
Figure 11-25
2. Reverse polarities of the probes and repeat the
procedure.
3. Check that one of continuity shows the state
while the other connection results in no
continuity state. If the continuity check results
are not as described above, replace the
rectifier.
4. Check the negative rectifier. Connect one of
tester probes of an ohmmeter to the negative (-)
terminal (Figure 11-26, (1)) and the other
probe to the rectifier terminal
(Figure 11-26, (2)).
6LPA Service Manual
(1)
(2)
0004850
© 2007 Yanmar Marine International
Figure 11-26
Figure 11-26
5. Reverse polarities of the probes and repeat the
procedure.
6. Check that one of connections shows the
continuity state while the other connection
results in no continuity state. If the continuity
check results are not as described above,
replace the rectifier holder.

Bearing Service

1. Inspect the front bearing for wear and damage.
If necessary replace the front bearing.
2. Remove the 4 bearing retainer screws and
bearing retainer (Figure 11-27).
Figure 11-27
Figure 11-27
ALTERNATOR
(1)
(2)
0004851
0004853
11-15