PRO TECHNICIAN

Conventional Starter

Other Constructions of Starter

4. Brake mechanism
(1) General
Most conventional type starters are equipped with a brake mechanism, which stops the rotation of the armature once the engine starts. The brake mechanism also acts to control the speed of the armature immediately after the engine starts
REFERENCE:
A Most reduction type starters do not have a brake mechanism for the following reasons:
The armature is much smaller and lighter than a conventional starter and the inertia force is low. .
The pressure of the brush springs acts to control the speed of the armature
The reduction gear mechanism also causes friction.
However, there are some large-sized starters (24V-type) which are equipped with an electrical brake mechanism.
(2) Operation
The brake spring and lock plate force the armature against the commutator end frame to produce a braking effect.

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