Inspection

Inspection

Inspect Rotor
1. Check that there is continuity between the slip rings(A).




2. Check that there is no continuity between the slip rings and the rotor(B) or rotor shaft(C).
3. If the rotor fails either continuity check, replace the alternator.

Inspect Stator
1. Check that there is continuity between each pair of leads(A).




2. Check that there is no continuity between each lead and the coil core.
3. If the coil fails either continuity check, replace the alternator.

Alternator Belt Inspection And Adjustment

NOTE:
When using a new belt, first adjust the deflection or tension to the values for the new belt, then readjust the deflection or tension to the values for the used belt after running engine for five minutes.

Deflection method :
Apply a force of 98N (10 kgf, 22 lbf), and measure the deflection between the alternator and crankshaft pulley.

Deflection
Used Belt : 5.0 - 6.0 mm (0.20 - 0.23 in)
New Belt : 4.0 - 5.0 mm (0.16 - 0.20 in)


NOTE:
If the belt is worn or damaged, replace it.





Belt tension gauge method :
Attach the belt tension gauge to the belt and measure the tension. Follow the gauge manufacturer's instructions.

Tension
Used Belt : 340 - 490 N (35 - 50 kgf, 77 - 110 lbf)
New Belt : 540 - 640 N (55 - 65 kgf, 121 - 143 lbf)


NOTE:
If the belt is worn or damaged, replace it.





If adjustment is necessary :
1. Loosen the adjusting bolt(A) and the lock bolt(B).
2. Move the alternator to obtain the proper belt tension, then retighten the nuts.




3. Recheck the deflection or tension of the belt.