Page text (OCR transcript)
CH–13
CHARGING SYSTEM – GENERATOR
GENERATOR INSPECTION AND REPAIR
Rotor
1. INSPECT ROTOR FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between
the slip rings.
Standard resistance:
2.8–3.0 Ω at 20˚C (68˚C)
If there is no continuity, replace the rotor
Continuity
Ohmmeter
CH0784
2. INSPECT ROTOR FOR GROUND
Using an ohmmeter, check that there is no continuity be-
tween the slip ring and rotor.If there is continuity, replace the
rotor.
Ohmmeter
No Continuity
CH0783
3. INSPECT SLIP RINGS
(a) Check that the slip rings are not rough or scored. If rough or
scored, replace the rotor.
(b) Using a vernier caliper, measure the slip ring diameter.
Standard diameter:
14.2–14.4 mm (0.559–0.567 in.)
Minimum diameter:
12.8 mm (0.504 in.)
If the diameter is less than minimum, replace the rotor.
CH1023
Stator (Drive End Frame)
1. INSPECT STATOR FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between
the coil leads.If there is no continuity, replace the drive end
frame assembly.
Conituinity
Ohmmeter
P10622
2. INSPECT STATOR FOR GROUND
Using an ohmmeter, check that there is no continuity be-
tween the coil lead and drive end frame.If there is continuity,
replace the drive end frame assembly.
No Continuity
Ohmmeter
P90623
