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A typical dynamo

A typical dynamo Spring-loaded brush holders are placed one on each side of the commutator. Commutator Armature Pivot bolt Adjuster strap bolt

The electrical connections from a dynamo are on the rear endplate. Current generated in the armature is passed through the commutator to spring-loaded brushes and thence to terminals on the endplate.

Explained in

    How to fix a dynamo

    Wear on the carbon brushes and commutator is the most common cause of dynamo failure. Read more

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