Yanmar 4TNE98, Service Manual

Page: 229 / 246

4TNV98 & 4TNE98 Diesel Engine Section 7. Starter Motor 227
9. Remove the three M4 bolts (Figure 11-9, (1))
securing the bearing retainer assembly (Figure
11-9, (2)) to the gear housing. Remove the
bearing retainer assembly from the gear housing.
Figure 11-9
10. Remove the pinion clutch assembly (Figure 11-
9, (3)) from the bearing retainer assembly.
11. Using a flat-blade screwdriver, remove the
retaining ring (Figure 11-10, (1)) from the shaft
of the pinion.
Figure 11-10
12. Disassemble the pinion stop (Figure 11-11, (3)) ,
return spring (Figure 11-11, (4)) , pinion clutch
assembly (Figure 11-11, (1)) , and pinion shaft
(Figure 11-11, (5)) .
Figure 11-11
Cleaning and Inspection
Armature
Commutator Surface Inspection
If the commutator surface is rough, polish the
surface with a #500 to #600 emery cloth
(Figure
11-12) .
Figure 11-12
Measure Commutator Outside Diameter
Measure the commutator outside diameter
(Figure11-13) . Replace the armature if the
measurement is less than the limit.