ELECTRICAL COMPONENTS
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NOTE:
Using a hacksaw blade into an appropriate
scale MICA, Can be installde right on the
commutator
a.connect of small Tester the connectivity
check Insulation① inspection②.
b.Measuring armature Assembly
c.If the resistance valueis incorrect,Replace
starter motor
CHECKING THE STARTER MOTOR
1. Check:
• commutator
Dirty
Clean it with #600 grit sandpaper.
2. Measure:
• commutator diameter
Out of specification
Replace the starte
motor.
3. Measure:
• mica undercut ○
b
Out of specification Scrape the mica using
a hacksaw blade.
NOTE:
Scrape the mica to the proper measurement
using a hacksaw blade which has been
grounded to fit the commutator.
4. Check:
• armature coil (insulation/continuity)
Defects
Replace the starter motor.
a. Connect the pocket tester for the continuity
check ① and insulation check ②.
b. Measure the armature resistances
c. If the resistance is incorrect, replace the
starter motor.
5. Measure:
• brush lengthⓐ (each)
Out of specification
Replace the brush.
6. Measure:
• brush spring force
Fatigue/out of specification
Replace as a
set.
7. Check:
• oil seal
• bushing
• O-rings
Wear/damage
Replace.