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"MACHINE OPERATOR, CENTRIFUGAL-CONTROL SWITCHES"
Job Description and Jobs

Job Description:

  • 1) Operates machines, such as lathe and drill press, to machine centrifugal switch assemblies for electric motors, performing any combination of following duties: Positions switch bore and hub cylinder in fixture on hydraulic press.

  • 2) Starts press to lower ram and force hub into switch bore.

  • 3) Clamps assembly to bed of drill press and starts press to ream bore of hub cylinder to specified size.

  • 4) Verifies diameter of bore, using plug gauge.

  • 5) Mounts switch assembly to lathe and inserts specified cutting tool in tool holder.

  • 6) Sets cutting tool to specified depth of cut, using micrometer.

  • 7) Starts lathe to cut outside diameter of switch, to cut slot in contact surface, or to remove rivet heads and burs.

  • 8) Verifies diameter of switch or depth of slot, using micrometer or plug gauge.

  • 9) Mounts switch to test motor.

  • 10) Starts motor and turns control spring setscrew, observing tachometer, until switch opens at specified revolutions per minute.

  • 11) Inserts mandrel in bore of switch assembly and mounts assembly in test stand.

  • 12) Rotates mandrel and observes assembly for static balance.

  • 13) Drills metal from rivet heads or solders additional metal onto heads to balance switch assemblies.

  • 14) Mounts assembly to lathe and adjusts dial indicator to specified setting.

  • 15) Starts lathe and observes dial indicator to test balance of assembly.

 

 

 


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End Of Job Description for: "MACHINE OPERATOR, CENTRIFUGAL-CONTROL SWITCHES"
DOT:   609.682-022

Job Number: 6099