TB-9-2320-280-35-13

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

OCTOBER 2006

CHANGE 1

TB-9-2320-280-35-13 - Page 114 of 148

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TB 9-2320-280-35-13

Section XXVII. LOUDSPEAKER MOUNT INSTALLATION

27-1.

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

27-2.

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

hole (2) in B-beam.

27-3.

Install two inserts (8) in holes (1) and (2) in B-beam (3).

27-4.

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

and washers (6).

27-5.

Install loudspeaker (11) on loudspeaker bracket (7) with existing lockwasher (10) and wing nut (9).

Figure 5-103.

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

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