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Bell System Practices 630 Series Installation And Maintenance Manual page 8

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SECTION
502-600-100
Fig. 11 —810155501
Adapter
(3)
Place blocking
rings in plungers
to be blocked.
(4)
Reassemble
button
retainer
and lamp
block
assembly.
Fig. 12—Blocking
Ring Installed
in 590 or 650
Series
Keys
2.21
The
812365948
( P-23FW4
) button
stop
is
used
to
make
an
individual
pickup
key
inoperative
on the 635-type
key and is installed
as
follows.
(1)
Remove
collar.
(2)
Remove
button
and
cap.
(3)
Place
button
stop
over
lamp
(Fig.
13)
Not e:
It may
be necessary
to support
the
button
plunger
before attempting
to reassemble
key hutton.
(4)
Reinstall
button,
cap, and
collar.
Fig. 13—Button
Stop Installed
in 635-Type
Key
2.22
Any unused
key module
should
be replaced
by a 105B (early
production
sets)
or a 111 B
(current
production
sets)
apparatus
blank.
2.23
Insulate
and store
unused
t50&type
plugs
on
the 111 B apparatus
blank as showm in Fig.
14.
Individual
508-type
plugs
cm
k
inslllat~~
and
stored
by
taping
an
814632659
(P-46(%5
I cover
over
the contacts
of the
plug.
Page
8

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1630 series2630 series