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 86 of 148
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TB 9-2320-280-35-13
17. CAPSCREW – B1821BH025C100N – QTY. 8
18. LOCKWASHER – MS45904-71 – QTY. 14
20. WASHER – 2436161 – QTY. 2
21. NUT – 9419143 – QTY. 2
22. GROUND STRAP
• BRAIDED WIRE – AA59569F30T0375 – QTY. A/R
• TERMINAL LUG – MS20659-141 – QTY. 4
23. CAPSCREW – B1821BH025C075N – QTY. 2
Figure 5-78.
5.00
2.00
5
19
7
9
20-13.
Remove paint from vicinity of left overhead rail hole (9). Apply anti-seize compound as required.
20-14.
Fabricate ground strap (22) from 6-in. length of braided wire and two terminal lugs.
20-15.
Install ground strap (22) on left overhead rail (7) with capscrew (17) and two lockwashers (18).
20-16.
Locate, mark, and drill one 0.281-in. diameter hole (19) in antenna overcab mount (5).
20-17.
Remove paint from vicinity of antenna overcab mount hole (19). Apply anti-seize compound as
required.
20-18.
Install ground strap (22) on antenna overcab mount (5) with capscrew (23), two lockwashers (18),
washer (20), and nut (21).
20-19.
Repeat steps 20-13 through 20-18 for right side.
7
21
17
18
22
9
19
23
18
18
18
20
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