| Generator brush holder assembly brush exposed length | Standard exposed length | 9.5 to 11.5 mm (0.374 to 0.453 in.) |
| Minimum exposed length | 4.5mm (0.177 in.) | |
| Generator rotor assembly resistance | Slip ring - Slip ring | 1.7 to 2.1 Ω at 20°C (68°F) |
| Slip ring - Rotor | 10 MΩ or higher | |
| Generator rotor assembly slip ring diameter | Standard diameter | 14.2 to 14.4 mm (0.559 to 0.567 in.) |
| Minimum diameter | 14.0 mm (0.551 in.) | |
| Generator drive end frame assembly resistance | Coil lead - Coil lead | Below 1Ω |
| Coil lead - Generator drive end frame assembly | 10 kΩ or higher | |
| Generator holder with rectifier resistance | P1, P2, P3 - B | Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction. |
| P1, P2, P3 - E | Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction. | |
| Generator regulator assembly resistance | Terminals F - Terminals B | When the positive and negative poles between terminals F and B are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction. |
| Terminals E - Terminals F | When the positive and negative poles between terminals E and F are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction. |