Service Manual

ELECTRICAL SYSTEM
12-12
2.3 Inspecting and repairing starter
2.3.1 Inspecting brushes for wear
Measure the length of the brushes. If the measured value is
less than the limit, replace both the brush holder assembly
and the brush assembly with new ones.
Inspecting brushes for wear
2.3.2 Measuring brush spring load
Using a new brush, measure the spring load at which the
spring lifts from the brush. If the measured value is less than
the limit, replace the spring with a new one.
Measuring brush spring load
2.3.3 Inspecting brush holder for insulation
Check for no continuity between each brush holder and the
brush holder base. If continuity is found, replace the brush
holder assembly.
Check the brush holders for looseness.
Checking brush holder for grounding
2.3.4 Measuring commutator radial runout
(1) Inspect the commutator surface. If the surface is rough,
polish it using a 400 to 600 grit sandpaper.
(2) Measure the commutator radial runout with a dial
gauge. If the measured value exceeds the limit, replace
the armature with a new one.
Measuring commutator radial runout
Item Standard Limit
Brush length
18 mm
[0.71 in.]
11 mm
[0.43 in.]
Measure the
length of the
brush. Replace if
the length is equal
to or less than the
limit.
Item Standard Limit
Brush spring load
29.4 to 39.4 N
{3.0 to 4.0 kgf}
[6.6 to 8.8 lbf]
13.7 N
{1.4 kgf}
[3.1 lbf]
Insulated brush holder
Brush holder base
Item Standard Limit
Commutator
runout
0.05 mm
[0.0020 in.] or less
0.10 mm
[0.0039 in.]
Commutator