Teletype 43K001/AAA, Руководство по ремонту

Страница: 47 / 82

(b) Remove the keytop and plunger retainer
from the upper plunger.
(c) Slide the upper plunger out through the
bottom of keyswitch housing (Fig. 45 ).
Fig. 45-Upper Plunger Removal
To remove the indicator keyswitch assembly:
(a) With the circuit card and indicator keytop
assembly removed, (Fig. 41), depress the
indicator plunger assembly until it slides out of
the housing.
(b) The magnet can be removed by lifting it
off the upper keeper. When reassembling
insure the magnet is fully seated in the upper
keeper of the housing. (See Note.)
To remove the latching keyswitch: (caps lock
and control).
(a) Remove the keytop, plunger retainer,
compression spring and circuit card. (See
3-14).
(b) Depress the plunger assembly until it slides
out of the housing.
MANUAL 525, 3-15
(c) Remove the latching cam by grasping it's
ring and pulling cam out of the housing.
(Fig. 46.)
(d) Remove the latch magnet and latch keeper
by slipping them off the latching
cam.
(Fig. 46.)
(e) During reassembly of the latch magnet
and keeper, place the keeper against the
magnet making. sure to orient them
so
their
outlines match.
(f) Place the magnet and keeper into the cam
recess with the magnet toward the cam.
(See Note.)
.
PLUNGER
COMPRESSION
SPRING
PLUNGER
RING
KEE
::
)
b
Fig. 46-Latching Keyswitch Removal
Note:
Any magnets removed during disassembly should be cleaned of foreign particles before reassem­
bling in the keyswitch housing.