## Charging System

#### Alternator Overhaul (cont'd)

4-36

Rotor Slip Ring Test

16. Check that there is continuity between the slip rings (A).

- If there is continuity, go to step 17.
- If there is no continuity, replace the rotor assembly.

17. Check that there is no continuity between each slip ring (A) and the rotor (B) and the rotor shaft (C).

- If there is no continuity, replace the rear housing assembly, go to step 18.
- If there is continuity, replace the rotor assembly.

Alternator Reassembly

18. If you removed the pulley, put the rotor in the drive-end housing, then tighten its locknut to 111 Nm (11.3 kgf/m, 81.7 lbf/t).
19. Remove any grease or any oil from the slip rings.
20. Push the brushes (A) in, then insert a pin or drill bit (B) (about 1.8 mm (0.77 in.) diameter) to hold them there.

21. Heat the rear bearing seat with a 1,000 W hair drier for about 5 minutes (50 - 60oC, 129 - 140oF).
22. Put the rear housing assembly (A) and drive-end housing/rotor assembly (B) together, tighten the four through bolts (C) and pull put the pin (D).

23. After assembling the alternator, turn the pulley by hand to make sure the rotor rotates smoothly and without noise.
24. Reinstall the alternator, and adjust its belt tension (see page 4-37).