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 111 of 148

5-83

TB 9-2320-280-35-13

NOTE

Perform step 25-10 only if not installing cargo soft-top enclosure;

otherwise, start with step 25-11.

25-10.

Install antenna (31) on antenna mount assembly (14) with four capscrews (24), gasket (30), eight

lockwashers (25), and four nuts (26).

NOTE

Perform steps 25-11 through 25-12 only when installing cargo soft-

top enclosure.

25-11.

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.

25-12.

Using antenna (31) as template, locate, mark, and drill four 0.375-in. holes (33) and cut “X” (34) in

cargo soft-top enclosure (32).

25-13.

Install antenna (31) on antenna mount assembly (14) and cargo soft-top enclosure (32) with four

capscrews (24), gasket (30), eight lockwashers (25), and four nuts (26), ensuring that ground

strap (27) is inserted through cut hole (34).

25-14.

Install ground strap (27) on antenna mount assembly (14) with screw (29), three lockwashers (28),

and nut (19).

25-15.

Tighten all nuts (19) and (26).

28

29

14

30

31

24

25

26

25

27

19

Figure 5-101.

28

19. NUT – 9419143 – QTY. 1

24. CAPSCREW – B1821BH038C150N – QTY. 4

25. LOCKWASHER – MS45904-76 – QTY. 8

26. NUT – 13218E0320-293 – QTY. 4

27. GROUND STRAP

•

BRAIDED WIRE – AA59569F30T0375 – QTY. A/R

•

TERMINAL LUG – MS20659-141 – QTY. 2

28. LOCKWASHER – MS45904-68 – QTY. 3

29. CAPSCREW – B1821BH025C075N – QTY. 1

30. GASKET – A3013655-1 – QTY. 1

31. ANTENNA – A3005031 – QTY. 1

24

25

30

31

34

27

26

25

32

33

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