Komatsu 4D98 Series Shop Manual page 63

4. Engine Body
(5.2)
0
Idle gear
Mainly check the bushing seizure and
wear, and gear damage.
Shaft outside diameter and bushing in-
side diameter measurement
(mm)
I
( Standard j Limit
1 Shaft outside diameter 145.950-49.975 1459Od
1 Bushing inside diameter 146.000-46.025 146.075 1
I
Clearance / 0.025-0.075 1 0.175 1
(5.3) PTO drive gear
Idle
gear
Mainly check sticking of bearings on both sides, gear damage and looseness, and gear shaft
damage and wear.
Shaft
4-15