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6H-12 CHARGING SYSTEM
Generator Inspection
ROTOR
1) Using ohmmeter, check for continuity between slip rings of
Standard resistance between slip rings of rotor
2.7 – 3.1 Ω at 20°C (68°F)
2) Check slip rings for roughness or scoring. If rough or scored,
Slip ring diameter
Standard: 16.1 – 16.3 mm (0.634 – 0.642 in.)
Limit: 15.0 mm (0.591 in.)
BRUSH
Check each brush for wear by measuring its length as shown. If
brush is found worn down to service limit, replace brush.
Exposed brush length "a"
Standard: 12.5 mm (0.492 in.)
Limit: 2.5 mm (0.098 in.)
"a"
rotor. If there is no continuity, replace rotor.
replace rotor.
Using a vernier caliper, measure the slip ring diameter.
If the diameter is less than minimum, replace the rotor.
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