SECTION 5-Breaker Operation (Cont.)
FIG . 1 2 - ROLLER ENGAG ED WITH CLOSING PROP
There is a ratchet assembly attached to the camshaft
extension . This ratchet is normally driven by the breaker's
gear motor. A roller on this ratchet engages with a prop
when the closing spring is fully charged and driven over
center, see Fig. 1 2. This holds the closing spring in a
charged condition.
Rotate the camshaft using the maintenance handle until
the ratchet assembly roller engages with the prop. Do not
drive the roller against the prop with undo force. The
breaker can now be closed by removing the prop from the
roller. This is done by manually activating the closing
solenoid armature by pushing the solenoid armature into
its windings. See Fig. 1 3.
FIG. 1 3 - MAN UAL OPERATION OF CLOSING SOLENOID
1 4
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