Table 2-2. Safety Switches

TM 5-3610-286-20 Table 2-2. Safety Switches (cont). Reference designation b42 b59 b89 b90 b135 Normal condition NC NC NC NC NO NC = Normally closed NO = Normally open Function Plexiguard Delivery Paper Safety Upper Pile Safety Limit Switch Suction Head Safety Limit Switch Cylinder Guard Location O/S Side PIate Delivery End Feeder Feeder Suction Head Feeder End c. Reference Designations. The reference designations used throughout the text are those provided by Heidleberg. These reference designations are not to military specifications, but are used in this manual because they appear on tags, nameplates and components on the equipment. A list of reference designations used in this manual is provided in table 2-3. Refer to table 2-4 for a listing of all printing press electrical components. They are listed by reference designation and identify their specific description and function. Table 2-3. Reference Designation. Ref des a b c d e 9 h m Component Main switch, overload Micro switch, toggle Contractors Auxiliary contractors Fuses, thermistors Generators Control lamps, indicators Motors 2-9