Shibaura ST330, Workshop Manual

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11. Fa ult Finding
Troub le Parts Cause Remedy
No ch arging
Wiring, ammeter Disconn ection, short circu it, loosen ed conn ection Correct
Altern ator
Disconn ection of coils, earth short circuit Replace
Defectiv e rectifier Replace
Disconn ection of RF resistor Replace
Regu lator Defectiv e regulator Replace
Insufficient
charg ing
Wiring Disconn ection, short circu it, loosen ed conn ection Correct
Altern ator
Loosened alternator belt Correct
Lay er short of rotor coil Replace
Lay er short of stator co il Replace
Defectiv e rectifier Replace
Insu fficien t con tact of brush , stain ed slip ring Correct
Regu lator Defectiv e regulator Replace
Battery Defectiv e b attery Replace
Over ch arge
Battery Intern al short circuit Replace
Regu lator Defectiv e regulator Replace
Unstable
charg ing
current
Wiring Disconn ection or breakage of w ire Replace
Altern ator
Slackened alternator drive belt Replace
Short o f ro tor coil, breakage of wire Replace
Shortag e of stator coil, b reak age of wire Replace
Insu fficien t contact of b rush , stained brush and slip
ring
Correct
Broken brush and sprig Replace
Insu fficien t con tact of terminals Correct
Regu lator Defectiv e regulator Replace
Abnormal
noise o f
alternato r Altern ator
Incorrect installation of alternator Correct
Defectiv e b earing Replace
Rotor core and stator core in con tact Correct
Defectiv e d iode Replace
Short o f stator coil Replace