Komatsu 4D98 Series Shop Manual page 129

9. Startinn Motor
(b) Pinion sliding inspection
Check if the pinion slide smoothly in the
axial direction.
If damaged, rusted or heavy in sliding, re-
pair it.
If grease is applied too much on the pinion
shaft, sliding becomes heavy.
(cl Ball bearing inspection
Rotate the ball bearing while holding the
outer race with fingertips. Inspect if it is
sticking or if there is play.
Fig. 25
Fig. 26
9-l 3