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CHARGING SYSTEM —Alternator—

-Rotor Slip Ring Check

1. Continuity test

SEL589A

• No continuity ... Replace rotor.

2. Insulation test

SEL590A

• Continuity exists ... Replace rotor.

3. Check slip ring for wear.

Slip ring minimum outer diameter:

32.4 mm (1.276 in)

-Brush Check_

1.    Check smooth movement of brush.

• Not smooth ... Check brush holder and clean.

2.    Check brush for wear.

Wear limit length: 7 mm (0.28 in)

Brush wear limiting linę

SEL.988A

•    Less than the specified value ... Replace.

3.    Check brush pig taił for damage.

•    Damaged ... Replace.

4.    Check brush spring pressure.

Measure brush spring pressure with brush pro-jected approximately 2 mm (0.08 in) from brush holder.

Spring pressure:

3.040 - 4.217 N (310-430 g, 10.93-15.17 oz)

When brush is worn, pressure decreases approxi-mately 0.196 N (20 g, 0.71 oz) per 1 mm (0.04 in) wear.

i 2.

2 mm i0.08 inl

EE0-49

• Not in the specified value ... Replace.