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 106 of 148

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TB 9-2320-280-35-13

NOTE

Perform step 24-10 only if not installing cargo soft-top enclosure;

otherwise, start with step 24-11.

24-10.

Install antenna (25) on antenna mount assembly (23) with four capscrews (24), gasket (26), eight

lockwashers (31), and four nuts (30).

NOTE

Perform steps 24-11 through 24-12 only when installing cargo

soft-top enclosure.

24-11.

Install cargo soft-top enclosure (32). (Refer to TM 9-2320-280-10.)

NOTE

Ensure all slack has been taken out of cargo soft-top enclosure,

and that cargo soft-top enclosure has been properly installed.

24-12.

Using antenna (25) as template, locate, mark, and drill four 0.375-in. holes (33) and cut “X” (34) in

cargo soft-top enclosure (32).

24-13.

Install antenna (25) on antenna mount assembly (23) and cargo soft-top enclosure (32) with

gasket (26), eight lockwashers (31), and four nuts (30), ensuring that ground strap (29) is inserted

through cut hole (34).

24-14.

Install ground strap (29) on antenna mount assembly (23) with screw (28), three lockwashers (27),

and nut (18).

24-15.

Tighten all nuts (18) and (30).

Figure 5-96.

18. NUT – 9419143 – QTY. 1

24. CAPSCREW – B1821BH038C150N – QTY. 4

25. ANTENNA – A3017889-2 – QTY. 1

26. GASKET – A3013655-1 – QTY. 1

27. LOCKWASHER – MS45904-68 – QTY. 3

28. CAPSCREW – B1821BH025C075N – QTY. 1

29. GROUND STRAP

•

BRAIDED WIRE – AA59569F30T0375 – QTY. A/R

•

TERMINAL LUG – MS20659-141 – QTY. 2

30. NUT – 13218E0320-293 – QTY. 4

31. LOCKWASHER – MS45904-76 – QTY. 8

24

31

26

25

29

31

30

32

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29

18

27

30

31

24

25

26

23

28

27

31

33

33

34