3. STATOR
1) Continuity test
Inspect stator coil for continuity between each end
of the lead wires. If there is no continuity between
individual lead wires, the lead wire is broken, and
so replace stator assembly.
S6M0408
2) Insulation test
Inspect stator coil for continuity between stator
core and each end of the lead wire. If there is
continuity, the stator coil is grounded, and so
replace stator assembly.
G6M0079
4. BRUSH
1) Measure the length of each brush. If wear
exceeds the service limit, replace the brush. Each
brush has the service limit mark (A) on it.
Brush length:
Standard
18.5 mm (0.728 in)
Service limit
5.0 mm (0.197 in)
H6M0499C
2) Checking brush spring for proper pressure
Using a spring pressure indicator, push the brush
into the brush holder until its tip protrudes 2 mm
(0.08 in). Then measure the pressure of the brush
spring. If the pressure is less than 2.648 N (270 g,
9.52 oz), replace the brush spring with a new one.
The new spring must have a pressure of 4.609 to
5.786 N (470 to 590 g, 16.58 to 20.81 oz).
G6M0143
5. BEARING (FRONT SIDE)
1) Check front ball bearing. If resistance is felt
while rotating, or if abnormal noise is heard,
replace the ball bearing.
2) Replacing front bearing
(1) Remove front bearing retainer.
(2) Closely install a fit tool on the bearing inner
race. Press the bearing down out of front
bracket with a hand press or vise. A socket
wrench can serve as the tool.
S6M0409A
(A) Front bracket
(B) Socket wrench
15
[W2C5]6-1SERVICE PROCEDURE
2. Generator
1. Starter
Trouble Probable cause
Starter does not start.Magnet switch does not operate.
(no clicks are heard.)Magnet switch poor contact or discontinuity of pull-in coil cir-
cuit
Improper sliding of magnet switch plunger
Magnet switch operates.
(clicks are issued.)Poor contact of magnet switch's main contact point
Layer short of armature
Contaminants on armature commutator
High armature mica
Improper grounding of yoke field coil
Insufficient carbon brush length
Insufficient brush spring pressure
Starter starts but does not
crank engine.Failure of pinion gear to engage
ring gearWorn pinion teeth
Improper sliding of overrunning clutch
Improper adjustment of stud bolt
Clutch slippage Faulty clutch roller spring
Starter starts but engine cranks too slowly.Poor contact of magnet switch's main contact point
Layer short of armature
Discontinuity, burning or wear of armature commutator
Poor grounding of yoke field coil
Insufficient brush length
Insufficient brush spring pressure
Abnormal brush wear
Starter overruns. Magnet switch coil is a layer short.
23
[K100]6-1DIAGNOSTICS
1. Starter
