TB-9-2320-280-35-14

TECHNICAL BULLETIN

INSTALLATION INSTRUCTIONS FOR SINGLE CHANNEL GROUND AND AIRBORNE RADIO SYSTEM (SINCGARS) AN/VRC-88F, AN/VRC-89F, AN/VRC-90F, AN/VRC-91F, AN/VRC-92F

SEPTEMBER 2006

TB-9-2320-280-35-14 - Page 114 of 148

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TB 9-2320-280-35-14

Section XXXII. LOUDSPEAKER MOUNT INSTALLATION

32-1.

Locate, mark, and drill one 0.391-in. diameter hole (1) in B-beam (3).

32-2.

Using speaker mounting bracket (7) as template, locate, mark, and drill second 0.391-in. diameter

hole (2) in B-beam.

32-3.

Install two inserts (8) in B-beam (3).

32-4.

Install loudspeaker mounting bracket (7) on B-beam (3) with two capscrews (4), lockwashers (5),

and washers (6).

32-5.

Install loudspeaker (11) on loudspeaker mounting bracket (7) with existing lockwasher (10) and

wingnut (9).

Figure 5-116.

4. CAPSCREW – B1821BH025C088N – QTY. 2

5. LOCKWASHER – MS35338-44 – QTY. 2

6. WASHER – MS27183-10 – QTY. 2

8. INSERT – 12446871-2 – QTY. 2

11. SPEAKER – 10181-5180-01 – QTY.1

3

1

4

5

6

7

8

9

7

11

10

2

33.50

1.00

~

3

~

Figure 5-114.

Figure 5-115.