Yanmar BY Series Service Manual page 227

ALTERNATOR
Note: Bolt (Figure 11-4, (3)) must be removed
and installed with the belt tensioner
spring assembly.
7. Loosen bolt (Figure 11-4, (3)) securing
tensioning pulley and arm to belt tensioner
spring assembly.
8. Remove arm and pulley (Figure 11-4, (4)) in
direction of arrow.
Figure 11-5
9. Remove bolts. Remove tensioner spring
assembly (Figure 11-5, (1)) in direction of
arrow.
10. Installation is done in reverse of removal. Install
new seal (Figure 11-5, (2)).
11-8 BY Service Manual
Repair