Yanmar 3TNV Series Service Manual page 159

(2) Disassembly procedure
1) Nut M8
Remove the magnetic switch nut M8 (12 mm),
and disconnect the connecting wire.
2) Screw M4 (2)
3) Through bolt M5 (2)
4) Rear cover
Remove the M4 screw fastening the brush holder
and remove through bolt M5 for rear cover
removal.
5) Brush holder
Pull the brush spring up with the brush spring
puller. On the negative (-) side, bring the brush
spring into contact with the side of the brush for
lifting from the commutator surface. On the
positive (+) side, extract the brush from the brush
holder.
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9. Starting Motor