Replacement of Capacitor 1 A15C1

TM 11-5820-695-35

right section of electrical equipment cabinet lA15.

WARNING

Connect wire lugs to the fall terminals sing the three

115 vac is applied to input filters

screws removed in step a(7).

1A15A6FL1 and lA15A6FL2. Be sure

(2) Position the fan against top wall of the

that the external ac power cable is

cabinet between the four synclamps which clamp the

disconnected from 1A15A6J18 (fig.

fan to the cabinet frame.

3-7) before performing this procedure.

(3) Secure the fan to the cabinet by tighteng

the four screws still connected to the four 'nclamps.

f. Removal.

(4) Mount air exhaust filter 1A15MP2 to top

of the cabinet and tighten the four thumbscrews.

(1) Remove power from T-1054/GRC-144

(5) Connect the connector removed ill step a

(para 3--20a).

(3) to J21 or J20 on electrical equipment cabinet 1A15.

(2) Remove power supply 1A1 (para 3-22a

(6) Replace power supply 1A1 (para 8-2?2 (6)

(2) though (6))

through (10)).

(3) Disconnect cables from connectors

(7) Restore power to T-1054/GRC44 (para 3-

1A15WIJ2, 1AlW2J3, 1A'14W3J6,, and 1A15W26J17

20b).

on top of electrical equipment cabinet lAl5 (fig. 3-7).

(4) Using a 3/4-inch open end wrench,

3-24. Replacement of Capacitor 1 A15C1

remove the hex-nut and washers that secure connector

1A15W26J17 to the top of electrical equipment lA15.

(fig. 3-3)

Note the position of the washers for replacement.

a. Removal.

(5) From inside of electrical equipment

cabinet lA15, lower coaxial cable 1A15W26 with

attached connector lA15W26J17 (fig. 3-7).

(1) Remove power from T-1054/GRC--144

(para 3-20a).

(6) Using a 5/8-inch open end wrench,

remove the hex-nut and washers that secure

(2) Remove power supply 1A1 (para 322 (2)

1A15W3J6, LA15W1J2, and 1A15W2J3 (fig 3-7) to the

through (6)).

top of electrical equipment cabinet 1A15. Note the

(3) Remove the two nuts securing capacitor

position of the washers for replacement.

ounting bracket to rear wall of electrical equipment

(7) From inside of electrical equipment 1A15,

cabinet lA15 and remove the capacitor mounting

lower coaxial cables 1A15W3, lA15W1, and IA15W2

bracket.

with attached connectors 1A15W3J6, 1A15W1J2, and

(4) Tag and unsolder the wires connected to

1A15W2J3.

capacitor 1A15CL terminals and remove the capacitor.

(8) Remove the four screws that secure the

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

b. Replacement.

clamp.

(9) ,unsolder and remove the four wires

(1) Insert replacement capacitor into the

connected to terminal board 1A 15TB4 (fig. 3-36).

cabinet and solder the two capacitor wires removed in

(10) Remove the four 1A15A6 input filter

step a(4).

assembly mounting screws and washers (fig. 3-7) from

(2) Insert capacitor mounting bracket Over

top of electrical equipment cabinet lA15 to release input

the replacement capacitor and place the capacitor

filter assembly lA15A6 (fig.

33) from electrical

mounting bracket on the threaded studs on rear wall of

equipment cabinet lA15.

the cabinet.

(11) From inside the cabinets tag, unsolder,

(3) Replace and tighten the two -nuts

and remove the wire lead attached to ground terminal

securing capacitor mounting bracket to rear wall of the

E2 (located on the right side of the filter assembly).

cabinet.

(12) Position the filter assembly to provide

(4) Replace power supply 1A1 (para 3-22g t6)

access to the bottom terminals of the filters. Tag,

through (10)).

unsolder, and remove the leads attached to the bottom

(5) Restore power to T-10.4d/GRC-144

terminals of the filters.

)para 3--20b).

(13) Carefully remove the filter assembly filter

from the cabinet.

3-25. Replacement of Terminal Board lA15TB4, Input

(14) On the filter assembly, remove the four

Filter 1A15A6FL1 or 1A15A6FL2 (fig. 3-3, 3-35 and 3-

screws that secure the cover to the box. Carefully

36)

Change 1

3-47