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