TOHATSU MFS 9.9 User Manual

8
8-19
4st 9.9/15/20 2008
6) Inspection of Brushes
1. Measure brush length. Replace brush holder ass'y if brush
length is less than specified value.
a
12
2. Check conductivity of brush holder ass'y. Replace if out of
specification.
Brush Length a : Standard Value
12.5 mm (0.492 in)
Wear limit a :
9.5 mm (0.374 in)
1
2. Measure commutator 1 outer diameter. Replace starter
motor ass'y if outer diameter is less than specified value.
Commutator Outer Diameter : Standard Value
30.0 mm (1.181 in)
Wear Limit :
29.0 mm (1.142 in)
b
c
d
2
Armature Conductivity :
b
between commutator segments 3-3 Conductive
c
Between Segment - Armature Core Non-conductive
d Between Segment - Armature Shaft Non-conductive
4. Check electrical conductivity of armature 2. Replace starter
motor ass'y if other than specified condition.
a
3
3
3
3
3
3
1
3. Measure undercut a of commutator 1. Replace starter
motor ass'y if less than specified value.
Commutator Undercut : Standard Value
0.5 - 0.8 mm (0.020 - 0.031 in)
Wear limit a :
0.2 mm (0.008 in)
Conductivity Between Brushes
Brush 1 – Brush 2
Non-conductive
Between Brush w - Earth Non-conductive
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TOHATSU MFS 9.9 Specifications

General

Brand	TOHATSU
Model	MFS 9.9
Category	Outboard Motor
Language	English