TM 11-5895-846-14
(5) Remove all cabling from connectors on
CAUTION
rear of unit.
Unit All directly beneath this unit must
(6) Carefully pull unit completely out of rack.
be installed at this time in order to
(7) Reinstall unit following steps(l) through (6)
prevent the rear of the orderwire shelf
above in reverse order.
from falling downwards as the unit is
NOTE
pulled past the short rear support rails.
During step (7) above, observe the
In the event that unit All cannot be
following cable reinstallation sequence:
installed at this time, extra precaution
(a) Working from operator's right to left,
should be given to pulling the unit from
reinstall rectangular connectors with captivated screws.
the rack.
(b) Reinstall large rectanglar connector
(4) Disconnect all cables from connectors
with captivated screws.
mounted on rear of shelf.
(c) Reinstall eight twin-axial plugs.
(5) Carefully pull unit out past front rail
(d) Reinstall eight circular connectors
supports.
(work from bottom to top).
(6) Reinstall unit following steps (1) through
(e) Reinstall power connector at top.
(5) above in reverse order. (Carefully guide unit into rack
j.
Removal and Replacement of LIU Shelf, A14.
on support rails.)
(1) Remove units A15 and A14. Follow this
h. Removal and Replacement of Analog/Digital
procedure as outlined for the applicable unit.
Converter, All and A12 (CV-3034).
NOTE
(1) Place the POWER switch located on the
The blank panel positioned between
unit to the OFF position.
units A14 and A15 does not have to be
NOTE
removed.
Because of vertical clearances between
(2) Turn the three power switches located on
the two units and the support system,
modular unit to the OFF position.
unit All may be removed independently
(3) Remove all plugs from front of modules.
from the rack. If unit A12 is to be
(Note their proper location for reinstallation.)
removed, unit All should first be
(4) Remove loose hardware retaining front
removed before any attempts are made
panel to rack and pull on edges of panel in-order that unit
to remove unit A12.
may be pulled approximately half way out of rack.
(2) Remove the four, cross-recess head
(5) From underneath unit, disconnect all
captive screws from the front panel of rack.
circular connectors.
(3) Carefully pull unit out of rack just far
(6) Reinstall unit following steps (1) athrough
enough to disconnect all cables from rear mounted
(5) above in reverse order.
connectors.
k. Removal and Replacement of TTY/Low Level
(4) Remove cabling and withdraw unit from
Patch Panel, A15.
rack.
(1) Remove all external cables from front
(5) Reinstall unit following steps (1) through
panel.
(4) above in reverse order.
(2) Loosen all captive screws securing front
i.
Removal and Replacement of Multiplexer A13
panel to rack and pull on edges of front panel to extend
(AN/FCC-98).
the drawer to its maximum open position (as allowed by
NOTE
the opening stops on the drawer slide assembly).
Front cover on unit may be left in place
(3) Disconnect all cabling from connectors
during removal of unit.
located on rear of chassis.
(1) Turn the power switch for rack No. 6
(4) Depress slide stop tabs, and slide unit
(located on the power distribution panel) to the OFF
outward until clear of slide tracks.
position. This disables all primary power to the rack.
(5) Reinstall unit following steps (1) through
(2.) Remove units A9 through A12 above the
(4) above in reverse order.
multiplexer following procedures previously outlined.
l.
Removal and Replacement of Transmission
(3) Remove all loose hardware retaining front
Test Set, A16.
panel to rack.
(1) Turn the power switch to the OFF position
(4) Carefully slide unit on support rails
on the unit.
approximately ten inches out of rack.
(2) Loosen all captive screws securing the
CAUTION
front panel to rack. (While carefully supporting unit, pull
Because of unit weight two persons are
partially out of rack).
required for removal purposes.
5-78