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TM 11-5895-1123-34
a. Replacement of Jack Sets on Subpanels A, E G,
jacks on subpanel K must be replaced,
and L (fig.
then both K and L subpanels must be re-
(1) Remove the communications VF patch panel
moved to provide access.
from its rack as outlined in paragraph 317 above.
(1) Remove the communications VF patch panel
(2) Remove the eight nuts protruding through the
from the rack as outlined in paragraph 317 above.
rear of the rigid support bars which hold the face of the
(2) Remove the eight nuts protruding through the
patch panel to the frame.
rear of the rigid support bars which hold the face of the
(3) Pull forward on the face of the patch panel until
patch panel to the frame.
the mounting screws clear the holes in the rigid support
(3) Pull forward on the face of the patch panel until
bars on the frame.
the mounting screws clear the holes in the rigid support
(4) Ease the face of the patch panel forward and
bars on the frame.
downward until it is lying flat, face down.
(4) While supporting the face of the patch panel in
(5) Unscrew the two screws holding the defective
an upright position, remove the six screws from the front
jack set (set of three jacks) to the rear of the front panel.
of the patch panel that hold each of the subpanels that
(6) Lift upward on the defective jack set until the
must be removed.
tubes clear the sleeves in the front panel and then twist
(5) While supporting the loose subpanels in place,
the defective jack set outward from the patch panel.
lower the face of the patch panel until it is face down.
(7) Tag the wires connected to the defective jack
(6) Reach beneath the face of the patch panel, and
set.
push upward on the loose subpanels to dislodge them
(8) If the wires on the defective jack set are wire
from the panel.
wrapped to the connectors, cut the wires as close as
(7) If necessary, cut the nylon tie wraps around the
possible to the connectors. If the wires are soldered to
cables which greatly restrict separating the subpanels to
the connectors, unsolder them.
gain access to the defective jack or jack set.
(9) Prepare the wires for soldering and using good
NOTE
soldering practices, solder the wires to the connectors on
In the next step, only one mounting
the replacement jack set.
screw is used to hold the single jacks on
(10) Twist the jack set inward and push downward to
subpanel K in place.
seat the jack set tubes into the sleeves in the front panel.
(8) Remove the two mounting screws holding the
(11) Insert and tighten the two mounting screws to
defective jack set to the rear of the subpenel.
secure the jack set to the patch panel.
(9) Tag the wires connected to the defective jack or
(12) Lift the front of the patch panel off of its face and
jack set.
mount it on the patch panel frame.
(10) Pull upward on the defective jack or jack set until
(13) Mount and tighten the eight nuts on the rear of
its tubes clear the sleeves in the front panel and then
the rigid support bar.
twist it outward away from the subpanel.
(14) Place the patch panel back into its rack as
(11) If the wires are wire wrapped to the jack or jack
outlined in paragraph 3-19 below.
set connectors, cut them as close as possible to the
connectors. If they are soldered, unsolder them.
b. Replacement of Jacks and Jack Sets on
(12) Prepare the wires for soldering and using good
Subpanels B, C, D, E, H, I, J, and K (fig. 3-2)
soldering practices, solder them to the replacement jack
NOTE
or jack set.
Depending on the physical location of
(13) Twist the jack or jack set inward and push it
the defective jack or jack set, varying
down until the tubes are seated in the sleeves on the
degrees of disassembly are required.
subpanel.
Basically, the subpanels on the outer
(14) Insert and tighten the two mounting screws (one
side of the subpanel containing the
screw in the case of a single jack) to secure the jack or
defective jack must be removed from
jack set to the subpanel.
the front of the panel. For example, if a
(15) Reinsert the subpanels into their holes in the
jack set must be replaced on subpanel
face of the patch panel.
B, subpanel A must be removed from
(16) While supporting the subpanels in place, raise
the front panel. If the jack set is located
the face of the patch panel to an upright position.
on subpanel J, subpanels K and L must
(17) Reinsert and tighten the six mounting screws
be removed from the front panel.  An
into the front of the patch panel to secure the subpanels
exception is that if the inward single
in place.
3-41

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