1. Continuity test (between two segments side by side).
• No continuity ... Replace.
2. Insulation test (between each commutator bar and shaft).
4. Check diameter of commutator.
Commutator minimum diameter:
31 mm (1.22 in)
• Less than specified value ... Replace.
EE022
• Continuity exists ... Replace.
3. Check commutator surface.
• Rough ... Sand lightly with No. 500 - 600
sandpaper.