Assembly - Yanmar 3TNV Series Service Manual

(5) Pinion
1) Check the pinion teeth for wear and damage. Replace with a new one, if necessary.
2) Check if the pinion slides smoothly. If it is damaged or rusted or does not slide smoothly, repair.
3) Check springs for damage, and replace if necessary.
(6) Ball bearing
If abnormalities such as irregular noises are detected to the ball bearing, replace with a new one.

9.2.7 Assembly

The assembly procedure is reverse of the disassembly procedure, but pay attention to the following
points.
(1) Apply grease as instructed below.
Greasing point
Sliding portions and head of plunger
Pinion metal and metal portions of gear case
Spline portions of pinion
Sliding portions of shift lever
Deceleration gear
(2) Armature thrust
No adjustments are needed for the thrust.
(3) Gear shaft thrust
Some thrust washers of 1.0 and 0.25 mm thickness are provided between the center bracket and gear
shaft supporting surface. Make sure to check them at reassembly.
If washers are deformed or worn, replace them with new ones.
The appropriate thrust is from 0.05 to 0.3mm. If it is over 0.3mm, and the appropriate thrust washer,
but pay attention so that the thrust is not 0.
Grease type
NPC-FC6A Grease
MALTEMP SRL Grease
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9. Starting Motor