Service manual

90-898303
4-33
Charging System Alternator
Battery charging system is contained within the belt driven alternator,
including the regulator. At cranking speeds, electrical power for the engine is
provided by the boat battery – mini-mum recommended size is 490 Cold
Cranking Amperes (CCA) or 630 Marine Cranking Amperes (MCA). Above
550 RPM, all electrical power is provided by the alternator. Should engine rpm
drop below 550 RPM, the alternator is not capable of providing sufficient
output and the battery becomes the primary source of electrical power.
Alternator output (when hot) to the battery @ 2000 RPM is approximately 35 -
41 amperes.
a) Alternator
Notes
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________
_______________________