TM 11-5895-846-14
(e) Reinstall power connector at top.
(4) Remove slide stops by removing Phillips
z. Removal and Replacement of the Central
screw.
(5) Carefully extend drawer to obtain access
Distribution Frame (CDF), A30.
to two connectors on rear of unit.
CAUTION
(6) Remove two circular connectors from rear
Because of unit weight, two persons are
of unit.
required for removal or installation
(7) Working from underneath the unit,
purposes.
remove the six bolts retaining the teletype machine to the
(1) Remove four circular connectors from top
tray.
of frame and one from back.
(8) Carefully lift unit off of tray.
(2) Remove four circular connectors from
(9) Reinstall unit following steps (1) through
bottom of frame.
(8) above in reverse order.
(3) Remove the plexiglass terminal block
ac. Removal and Replacement of the AC
protective cover from upper region of unit, and remove
Regulator Monitor Panel, A33.
all ring-type ground lugs with wires attached from
(1) After opening hinged front panel of the
terminal block. Reinstall all loose hardware.
data patch panel (A8), remove the power plug from the
(4) Remove five captivated screws from
right-hand side of the AC voltage regulator (located
bottom flange on unit and the five captivated screws from
inside the rack). This procedure disables power to the
the top flange (being careful and support unit).
monitor panel.
CAUTION
(2) Being careful to keep the monitor panel
Do not use the folding handle on the
from dropping, remove the captivated screws securing
front surface of the unit for either
the front panel to the rack.
supporting or lifting purpose.
(3) Remove the plexiglass protective terminal
(5) Reinstall unit by following steps (1)
board cover from TB1 and ring-type lug connections.
through (4) above in reverse order.
(Replace all loose hardware on terminal board.)
aa. Removal
and
Replacement
of
the
(4) Remove the panel from the rack.
NOTE
(1) Turn the power switch on the unit to the
If emergency operation of the terminal is
OFF position.
required in the absence of the monitor
(2) Remove the loose hardware retaining
panel, carefully tape lugs on ends of all
front of unit to rack and pull unit out to the first stop.
six wires left exposed.
(3) From underneath the scope (above the
(5) Reinstall panel by following steps (1)
teletype machine), remove the power plug from the wall
through (4) above in reverse order.
mounted receptacle.
ad. Removal and Replacement of the AC Voltage
(4) While depressing the slide stop tabs,
Regulator, VR1.
carefully withdraw the unit from the rack until clear of
NOTE
slide tracks.
This unit is located behind the data
CAUTION
patch panel, A8.
Because of unit weight, two persons are
required for removal purposes. Observe
(1) Repeat step f above.
extra caution while handling the fragile
(2) After loosening the captivated screws for
cathode-ray-tube.
unit A8, swing the hinged cover open.
(5) Reinstall unit following steps (1) through
(3) Remove the six screws from underneath
(4) above in reverse order.
the unit.
ab. Removal and Replacement of the Teletype
(4) Repeat step e above to enable this unit to
Machine, A32.
be pulled out from the rack for enough to allow removal
WARNING
of the AC voltage regulator power plug from the wall
The teletype weighs 100 pounds. Two
mounted receptacle.
persons are required to lift it.
(5) Remove the AC power plug from the
(1) Turn the POWER switch on the unit to the
connection on the right-hand side of regulator.
OFF position.
(6) Carefully lift unit out of rack.
(2) Loosen captive screws securing front of
(7) Reinstall unit following steps (1) through
tray to rack.
(6) above in reverse order.
(3) Pull the tray out of the rack as far as the
ae. Removal and Replacement of the 48V Power
slide stop buttons enable the slides to extend.
Supply No. 1, A34.
5-81