Yanmar 3TNV84 - Page 347

STARTER MOTOR
TNV DI Service Manual
11-13
Starter Motor
Figure 11-13
See Starter Motor Specifications on page 11-7 for
the service limit.
Measure Commutator Insulation Depth
Measure the depth of the insulating material
(Figure 11-14, (1)) between commutator segments
(Figure 11-14, (2)). If the depth measures less
than the limit, use a hacksaw blade
(Figure 11-14, (3)) to remove the insulating
material until the depth is within the limit.
A normal commutator condition is indicated in
(Figure 11-14, (4)). An abnormal commutator
condition is indicated in (Figure 11-14, (5)).
Figure 11-14
See Starter Motor Specifications on page 11-7 for
the service limit.
Armature Coil Continuity Test
Check for continuity between the commutator
segments using a multimeter (Figure 11-15). The
multimeter should indicate continuity.
Figure 11-15
If the multimeter does not indicate continuity,
replace the armature.
Armature Coil Insulation Test
Check for continuity between a commutator
segment and the shaft or armature using a
multimeter (Figure 11-16). The multimeter should
not indicate continuity.
Figure 11-16
If the multimeter indicates continuity, replace the
armature.
0000113
(3)
(5)
(4)
(2)
(1)
0000118
0000114
0000115
TNV_DI_SM_A4.book 13 ページ ２００７年１２月６日 木曜日 午前９時２３分