4
I N T R O D U C T I O N
NUMERO DI PAGINA
T I T O L O S E Z I O N E
X
W
NOTES FOR EASY CONSULTATION
PAGE LAYOUT
MODIFIED PAGES
Modified pages shall bear the same number as those in the previous edition, followed by the letter
M
, with the
new date
of issue appearing in the appropriate box.
Modified pages may contain new illustrations; in this case, the added illustration (or illustrations) will bear the number of the illustration on the former page, followed by a
letter.
ADDITIONAL PAGES
Any additional pages shall bear the last number of the section to which they belong, followed by the letter
A
and the
new date
of issue.
EDITING SYMBOLS
Symbols have been provided for
quick and easy reference
(see page 5), identifying situations requiring utmost attention or providing practical suggestions or simple information.
These symbols
may appear
next to a text
(in which case they refer solely to the text itself),
next to a figure
(in which case they refer to the topic illustrated in the figure
and to the relative text), or
at the top of the page
(in which case they refer to all the topics dealt with in the page).
The meaning of the symbols should be duly memorised as their scope is to avoid having to repeat basic technical concepts or safety recommendations. They
are therefore to be considered as veritable “
memory tags”.
In case of any doubt as to their meaning, consult the page in which they are fully described.
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SECTION TITLE
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PAGE NUMBER
Summary of Contents for Centro 50 4T
Page 1: ......
