Table 3-1. Preventative Maintenance Checks and Services
Operator Maintenance Category
Daily Schedule (or weekly)
Item to be
Check to see that the controls are in the
OFF or neutral position before connecting
the external power supply.
See that the camera rail is free of objects
that could obstruct movement of the
copyboard and lensboard.
Check for operating position. See that the
flexible rubber hose is connected. See that
the vacuum back is properly positioned
on the hinge assembly.
Copyboard and lensboard
Check limit switches by moving the
copyboard and lensboard forward and
backward to insure proper operation.
Check copyboard and lensboard
Darkroom connecting frame
Check to see that the vertical connecting
frame strips, curtain holders, and
darkroom panels are properly connected
and secure. Check to see that the top and
bottom curtains are properly drawn to
prevent light leakage.
Arc lamps and flash lamp
Check the arc lamps for correct operating
position and correct or irregular size
carbons. Check that the arc lamp cables
are firmly connected to the arc lamps.
Check the flash lamp for broken face
glass and bent or damaged reflector. See
that the flash lamp is in a vertical non-
operating position, and that all con-
necting points are tight.
Check to see that the valve handle on the
vacuum back is properly positioned to
correspond with size of negative. Check to
see that the vacuum diverter knob is
Check arc lamp arm brackets to be sure that
they are in their outer position ap-
proximately a 36 degree angle to the
camera ways. Observe light of arc lamp
for flickering, and if erratic lighting exists
regap carbons or replace them.
Unusual operation or noises
Check for any unusual noises from the
back and copyboard. If any irregularity
exists, stop operation and report the
condition to the proper authority.
Check that all controls are in the OFF or
neutral position before disconnecting the
external power supply. Disconnect plug
from transparency holder.
Remove lens from lensboard. Wipe with an
approved lens tissue only if finger prints
or grime are noted. Use a camel's hair
brush to remove dust or other particles.
Avoid excessive cleaning of the lens, as
the coating is relatively soft and easily