Section 1 (Starting System & Charging System (STI)): Generator: Inspection: Rotor
WARNING: This page is about a different variant/trim than selected.
- Inspect the slip rings for contamination or any roughness on the sliding surface. Repair the slip ring surface using a lathe or sand paper.
- Measure the slip ring outer diameter. Replace the rotor if the slip ring is worn.
Slip ring outer diameter:
Standard
22.7 mm (0.894 in)
Limit
22.1 mm (0.870 in)
- Using a circuit tester, check the resistance between slip rings. If resistance exceeds the standard, replace the rotor.
Standard:
Approx. 1.8 - 2.2 Ω
- Check the continuity between slip ring and rotor core or shaft. If there is continuity, replace the rotor because the rotor coil is grounded.
- Check the bearings. If there is any noise, or the rotor does not rotate smoothly, replace the bearings.