Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Alternator: Description and Operation

All types of generators are solidly mounted to the engine and are driven at approximately twice the engine speed. The powertrain control module controls the output voltage of the generator through the voltage regulator.

The voltage regulator is fitted to the generator and can not be renewed separately. Generators should be repaired as an assembly and not dismantled for repair.