TM 5-3610-220-14
Table 3-1. Preventative Maintenance Checks and Services
Operator Maintenance Category
Daily Schedule (or weekly)
Interval and
Sequence No.
Before
During
After
Item to be
Paragraph
operation
operation
operation
inspected
Procedure
reference
1
Controls
Check to see that the controls are in the
OFF or neutral position before connecting
the external power supply.
2
Camera rail
See that the camera rail is free of objects
that could obstruct movement of the
copyboard and lensboard.
3
Vacuum back
Check for operating position. See that the
flexible rubber hose is connected. See that
1-3. c.
the vacuum back is properly positioned
on the hinge assembly.
4
Copyboard and lensboard
Check limit switches by moving the
copyboard and lensboard forward and
backward to insure proper operation.
Check copyboard and lensboard
distances.
5
Darkroom connecting frame
Check to see that the vertical connecting
frame strips, curtain holders, and
2-1. h.
darkroom panels are properly connected
(4) (h)
and secure. Check to see that the top and
bottom curtains are properly drawn to
prevent light leakage.
6
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.
thru
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.
7
Vacuum controls
Check to see that the valve handle on the
vacuum back is properly positioned to
1-3. c.
correspond with size of negative. Check to
see that the vacuum diverter knob is
properly positioned.
8
Arc lamps
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.
9
Unusual operation or noises
Check for any unusual noises from the
turbo-compressors or from the vacuum
back and copyboard. If any irregularity
exists, stop operation and report the
condition to the proper authority.
10
Shutdown precautions
Check that all controls are in the OFF or
neutral position before disconnecting the
external power supply. Disconnect plug
from transparency holder.
11
Lens
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
damaged.
3-3
