ii
Printing History
New editions of this manual will incorporate all material updated since the previous edition. Update
packages may be issued between editions and contain replacement and additional pages to be
merged into the manual by the user. Each updated page will be indicated by a revision date at the
bottom of the page. A vertical bar in the margin indicates the changes on each page. Note that pages
which are rearranged due to changes on a previous page are not considered revised.
The manual printing date and part number indicate its current edition. The printing date changes
when a new edition is printed. (Minor corrections and updates which are incorporated at reprint do
not cause the date to change.) The manual part number changes when extensive technical changes
are incorporated.
March 1985 ... Edition 1