Replacement of Input Filter 2A15A5FL2 or 2A15A5FL3

TM 11-5820-695-35

replacement filter to the filter assembly cover.

Replacement.

(2) Place the filter cover close to the filter

(1) Position replacement low pass filter

assembly box and solder the wire lead removed in step

2A15A6FL1 close to low pass filter assembly 2A15A6

a(8) to the filter top terminal.

and solder the wires removed in step d(6) to the upper

(3) Place the filter cover on the filter box,

terminals of the filter.

checking that the leads from the filters are not crimped.

(2) Carefully insert the filter into filter

Secure the filter cover to the filter box by replacing and

assembly and secure in place using the six screws and

tightening the four screws removed in step M(8).

washers removed in step a(4).

(4) Position the filter assembly in the

(3) Solder the wires removed in step a(3)

cabinet so that ground lug El is on the right side of the

to their respective bottom terminals on the filter.

filter assembly. Solder the leads removed in step a(6)

(4) Perform steps (1) through (8) of

to each input filter terminal.

paragraph 3-44b.

(5) Solder the lead removed in step a(6)

3-48. Replacement of Input Filter 2A15A5FL2 or

to ground lug El on right side of the filter assembly.

2A15A5FL3 (fig. 3-19)

(6) Position and lift the filter assembly,

WARNING

aligning the mounting holes with the cabinet mounting

holes. Secure the filter assembly to the cabinet using

115 vac is applied to input filters

the four screws and washers removed in a(4) above.

2A15A5FL2 and 2A15A5FL3. Be sure

that the external ac. power cable is

(7) Replace the filter clamp and secure in

place using the four screws removed in step a(3).

disconnected from 2A15A5J5 (fig. 3-

20) before performing this procedure.

(8) Perform steps (1) through (8) of

paragraph 3-44b.

(1) Remove

power

from

R-

1467(P)/GRC144(V) or R-1467(P)A/GRC-144(V) (para

3-49. Replacement of Electrical Equipment Chassis

3-38a).

2A14A10 (fig. 3-17)

(2) Perform steps (2) through (8) of

Removal.

paragraph 3-44a.

(1) Set the POWER ON/OFF switch on

(3) Remove the four screws securing

meter panel assembly 2A15A2 to OFF.

filter clamp in place (fig. 3-35) and remove the filter

(2) Disconnect coaxial cable 2A15W3

clamp.

from electrical equipment chassis 2A14A10 front panel

(4) Remove the four screws and washers

connector OUTPUT J8 (fig. 3-24).

on top of electrical equipment cabinet 2A15 releasing

(3) Loosen the two 2A14 captive screws

filter assembly 2A15A5 from electrical equipment

(fig. 3-17) by alternately turning each captive screw two

cabinet 2A16.

turns at a time until the captive screws rotate freely.

(5) From inside the cabinet, tag,

Withdraw electrical frequency synthesizer 2A14 from

unsolder, and remove the wire connected to ground lug

electrical equipment cabinet 2A15.

El on right side of the filter assembly.

(4) Loosen and remove the two screws

(6) Tag, unsolder, and remove the leads

securing the left side handle assembly to electrical

connected to bottom terminals of the filters.

equipment chassis 2A14A10.

(7) Carefully remove the filter assembly

(5) Remove plug-in components 2A14A1

from the cabinet 2A15.

through 2A14A8 from electrical frequency synthesizer

(8) Remove four screws securing the

2A14 (TM 11-820-695-12).

filter assembly cover to the filter assembly box.

Replacement.

Carefully ease cover off box providing access to the top

(1) Insert plug-in components 2A14A1

terminals of the filters. Unsolder and remove lead from

through 2A14A8 into replacement electrical equipment

the filter being removed.

chassis (TM 11-5820-695-12).

(9) For the filter being replaced, remove

(2) Install the left side handle assembly

the hex-nut securing the filter to the cover and then

on replacement electrical equipment chassis 2A14A10

remove the filter.

and secure in place using the two screws removed in

Replacement.

step a(4).

(1) Remove the hex-nut from the

replacement filter, and use the hex-nut to secure the

Change 6

3-71