Analog (500/2500-type) telephones Page 311 of 504Telephones and Consoles Description, Installation, and OperationProcedure 56Designating 500-type telephones1 Remove the finger wheel (refer to Procedure 57 on page 311).2 Remove the number card from its envelope.3 Designate the number card with the appropriate directory number andstation designator.4 Insert the number card into the finger wheel (making sure the numbercard is properly oriented).5 Place the telephone on a flat surface.6 Place the finger wheel over the clamp on the dial, with the “0” hole directlyover the digit “9,” making sure the finger wheel depressions are properlypositioned on the prongs of the clamp plate.7 Rotate the finger wheel counterclockwise until the clamp spring snaps intothe notch on the underside of the finger wheel.End of ProcedureFollow the steps in Procedure 57 to remove the finger wheel from 500-typetelephones.Procedure 57Removing the finger wheel fromanalog 500-type telephone1 Place the telephone on a flat surface.2 Rotate the finger wheel clockwise as far as possible.3 Insert a paper clip into the small hole between the digits “9” and “0”located on the edge of the grooved section of the finger wheel.4 Press down on the releaser to disengage the finger wheel clamp spring.5 Rotate the finger wheel further clockwise until the clamp spring releases.6 Remove the finger wheel when it becomes loose. The dial returns tonormal position.End of Procedure