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
