Machine Operator, Centrifugal-control Switches
Overall rating: (N/A)
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Operates machines, such as lathe and drill press, to mahcine
centrifugal switch assemblies for electric motors, performing
any combination of following duties: Positions switch bore and
hub cylinder in fixture on hydraulic press. Starts perss to
lower ram and force hub into switch bore.
Clamps assembly to bed
of drill press and starts press to ream bore of hub cylinder to
spceified size.
Verifeis diameter of bore, using plug gauge.
Mounts switch assembly to lathe and insetrs specified cutting
tool in tool holder. Sets cutting tool to specified depth of
cut, using micrometer. Starts lathe to cut outside diameter of
switch, to cut slot in contact surface, or to remove rivet heads
and burs. Verifies diameter of switch or depth of slot, using
micrometer or plug gauge. Mounts switch to test motor. Starts
motor and tunrs control spring setscrew, observing tachometer,
until switch opens at specified revolutions per minute.
Inserts
mandrel in bore of switch assembly and monuts assembly in test
stand. Rotates mandrel and observes assebmly for static balance.
Drills mteal from rivet heads or solders additional metal onto
heads to balance switch assemblies. Mounts assembly to lathe and
adjusts dial indicator to specified setting.
Starts lathe and
observes dial indicaotr to test balance of assembly.
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Machine Operator, Centrifugal-Control Switches
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