Overhaul
DISASSEMBLY
1. Remove the generator cover(A) using a screw driver(B).
2. Loosen the mounting bolts(A) and disconnect the brush holder assembly(B).
3. Remove the slip ring guide(A).
4. Remove the nut, pulley(A) and spacer.
5. Loosen the 4 through bolts(A).
6. Disconnect the rotor(A) and cover(B).
7. Reassembly is the reverse of disassembly.
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 generator.
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 generator.
GENERATOR 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 value for the used belt after running engine for five minutes.
Deflection method:
Apply a force of 98N (10kg, 22lb), and measure the deflection between the generator and the water pump pulley.
Deflection
Used belt: 4.2 - 4.7 mm (0.1654 - 0.1850 in)
New belt: 3.3 - 3.7 mm (0.1299 - 0.1457 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: 392.3 - 490.3N (40 - 50kg, 88.2 - 110.2lb)
New belt: 637.4 - 735.5N (65 - 75kg, 143.3 - 165.3lb)
NOTE:
If the belt is worn or damaged, replace it.
If adjustment is necessary:
1. Loosen adjusting bolt (A) and the lock bolt (B).
2. Move the generator to obtain the proper belt tension, then retighten the nuts.
3. Recheck the deflection or tension of the belt.
NOTE:
For the power steering pump belt and A/C compressor belt adjustments, refer to ST group - power steering pump and HA group - air compressor.