R O T A R Y
PAGE 30
10.4 ....Numbering Head
Numbering Heads are precision instruments and should be
handled carefully to avoid damage.
The quality of the paper being numbered, and the type of ink used,
all have a bearing on the reliability of the heads performance.
Fluffy paper will clog the head quickly and lead to various faults,
including jamming of the number wheels which may necessitate
dismantling of the head.
( See Section 10.5 ).
If your machine is fitted with re-inkable rollers, thick or sticky inks,
or excessively applied thin inks, will have a similar effect, so care
should be exercised when re inking.
NOTE ...... Do not attempt to re-ink standard ink rollers.
The numbering heads should be regularly cleaned and lubricated,
preferably by following the head manufacturers cleaning and
lubrication instructions. If these are not available the following
guide-lines may be followed.
The complete numbering head may be soaked in a bath of white
spirit, with two or three drops of light machine oil added.
After soaking, a small brush may be used to remove ink from
crevices. Dry the head using a lint-free cloth.
When the head is
completely dry
lubricate all moving parts,
including the operating arm and its ball or roller and between the
number wheels,
sparingly
with a light machine oil (SAE 30) taking
great care not to get oil on the numbering faces.
NOTE ...... Do not use aerosol lubricants as they are normally too
thin and very difficult to apply precisely.
Section 10
MAINTENANCE
