ADJUSTMENTS AND MAINTENANCE.—
Normally, when the machine is first installed, no
adjustments are required. Occasionally, however,
some readjustment may be necessary because of
atmospheric changes, which may cause shrinkage
or expansion of some of the belts. These
adjustments should be performed according to the
manufacturer’s instructions and only then by
qualified personnel.
Maintenance is required on a daily, weekly,
monthly, semiannually, annually, and whenever
necessary basis. The following guide should be
followed:
1. Daily requirements:
a. Empty the residue bottle after at least
every 8 hours of operation. Never reuse residue
water.
b. Replenish the ammonia supply.
c. Clean the outside of the cylinder with
glass cleaner. (Operate the machine at slow speed
while cleaning the cylinder. )
d. Clean the feedboard, tracing receiving
tray, and print receiving tray. Keep them free of
foreign objects.
2. Weekly requirements:
Clean the inside of the cylinder when the
machine is COLD, using the following procedure:
a. Open the door at each end of the lamp
housing.
b. Remove the lamp connector from each
end.
c. Swing the triangular stop aside and
withdraw the lamp assembly.
d. Clean the inside of the cylinder—wrap
a damp, clean cloth around a swab and wipe the
cylinder while it is in slow motion. Repeat the
procedure with a dry cloth wrapped around the
swab until the cylinder is thoroughly clean.
e. Wipe the lamp assembly with a DAMP
cloth.
f. Reinstall the lamp assembly.
IMPORTANT: Handle the lamp assembly
with great care, as it is fragile and expensive. DO
NOT ATTEMPT TO REMOVE THE LAMP
FROM THE MACHINE UNTIL IT HAS
COOLED. Always rest the lamp assembly flat on
a table; never stand it on end.
3. Monthly requirements:
Lubricate the bearings and drive chain
assembly sparingly with No. 10 motor oil.
4. Semiannual requirements:
Clean all suction holes of the rotating
tracing separation drum with pipe stem cleaners.
5. Annual requirements:
a. Lubricate the bearings and drive chain
sparingly with No. 10 motor oil.
b. Remove all hoses of the airflow system
and clean out dust and dirt.
6. Whenever necessary:
a. If the developer sealing sleeve becomes
tacky, remove it from the machine; wash both the
inside and the outside thoroughly with soap and
water and dry well. NEVER attempt to wash the
sealing sleeve while it is in the machine.
b. It is advisable to clean the perforated
side of the developing tank at the same time.
Use any commercial cleaning fluid. This will
prevent any smudging of prints because of dirt
accumulations on the perforated side.
REPRODUCTION MATERIALS
Diazo materials are available from various
sources under different trade names and desig-
nations, such as K&E, 3M, and GAF. Basically,
all diazo reproduction materials have been
coated with a light-sensitive dye. The two types
commonly used for reproduction of original
drawings are standard weight blueprint paper and
sepia line intermediates.
Blueprint Paper
Standard weight paper (commonly called
blueprint paper) provides a black or blue image
on a white background. The printing speed for
paper is described as rapid. Paper is available in
sheet sizes that range from 8 by 10 in. to 34 by
44 in., or in rolls that range in widths from 11
to 42 in. with lengths of 50 or 100 yd.
Colored paper provides black or blue images
on blue, green, pink, or yellow stock.
Plastic-coated papers are now available that
give a slightly glossy print with better line
density than the standard paper.
Sepia Line Intermediates
Sepia line intermediates are used as duplicate
originals. These intermediates are prints from
which additional prints can be made, saving wear
on the original. When you use the sepia inter-
mediate, it is possible to keep emulsion-to-
emulsion contact in each generation, resulting in
a sharper image. In addition, sepia has a greater
density and is capable of delivering a darker
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