Section VI. MAINTENANCE OF COMMUNICATIONS

TM 11-5895-1123-34

(3) Pull forward on the face of the patch panel until

3-19. Replacement of Communications VF

the mounting screws clear the holes in the rigid support

Patch Panel SM-A-935851

bars on the frame.

WARNING

(4) Rest the front of the patch panel face down in

Two persons are required to perform

front of the frame.

this procedure due to the weight of the

(5) Cut the nylon tie wraps on the cables that

unit.

impede the removal of the defective multipin connector

a. Fully extend the slides out of the rack.

and if necessary remove other multipin connectors from

b. Mount the patch panel on the slides, release the

the rear panel when performing (6) below.

slide latches and push the patch panel into the rack until

(6) Perform the replacement procedure as outlined

it only protrudes two or three inches from the rack.

in 36b above.

c. If necessary, loosen the 14 captive screws on

(7) Remount all multipin connectors and replace the

the access panel located on the right side of rack 8

nylon tie wraps on the cables that were removed.

above the central distribution frame and remove it.

(8) Lift the front of the patch to an upright position

d. Refer to figure 31 and connect the 12 cables in

and mount it on the front of the frame.

numerical order (1 through 12) to the rear frame of the

(9) Mount and tighten the eight nuts on the mounting

patch panel by reaching through the access port.

screws protruding through the rear of the rigid support

e. Push the patch panel into the rack and tighten

bars on the frame.

the eight captive screws on the front to secure it in

(10) Place the patch panel into it's rack as outlined in

position.

paragraph 319 below.

f. Position the access panel on the right side of

rack 8, and tighten the 14 captive screws to secure it to

the rack.

Section VI. MAINTENANCE OF COMMUNICATIONS

TTY/LOW LEVEL P ETCH PANEL SM-A-935861

3-20. Removal of Communications TTY/Low Level

Release the slide latches and remove

Patch Panel SM-A-935861

the patch panel.

a. Loosen the four captive screws on the front of

3-21. Maintenance of Communications TTY/Low Level

the patch panel which hold it to the rack.

Patch Panel SM-A-935861

b. Pull on the two handles on the front of the patch

CAUTION

panel to extend it out of the rack.

Jack sets should only be handled by the

c. Tug and remove the three cable connectors from

body.

the rear frame of the patch panel.

3-43