There is nothing worse than a weak flipper. People usually attribute this
to a weak coil. While that does occasionally happen, often the flipper's
end of stroke switch (EOS) is in need of cleaning and adjustment. If you
need proof, just place the corner of a business card between the flipper EOS
points and activate the flipper. You'll get anything from a chatter to just
a hum with an occasional slow full flipper motion. NOTE: Prolonged
actuation of an incorrectly adjusted flipper will lead to overheated coils
and blown fuses. Anyway, the function of the EOS is to cut the windings
being used, thus prevent overheating and lowering current draw. Beyond
that, it really affects flipper performance. A fully actuated flipper
should break the EOS contacts about 1/16th of an inch. If one flipper seems
stronger than the other take a good look at the flipper's path from the
underside of the playfield. Also, give the EOS contacts a good cleaning and
replace if in bad shape. It'll make your flippers flip better!
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