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 48 of 148
5-26
TB 9-2320-280-35-14
Section XV.
COUPLER INSTALLATION
NOTE
Remove any rivets that will interfere with coupler installation.
15-1.
Remove twelve rivets (1) from right rear wheelhouse (2).
15-2.
Using coupler mounting plate (3) as template, locate, mark, and drill eight 0.281-in. diameter
holes (4) in right rear wheelhouse (2). Remove paint from holes and apply anti-seize compound.
NOTE
• Because of the angle of the wheelhouse, it may be necessary to cut
1/8–1/4-in. off of spacers to fit.
• Remove any rivets that prevent spacers from sitting flush against
the underside of wheelhouse.
15-3.
Locate, mark, and drill one 1.375-in. diameter hole (5) in right rear wheelhouse (2). Deburr hole (5).
15-4.
Install coupler mounting plate (3) on right wheelhouse (2) with three capscrews (6A), six
lockwashers (8), three spacers (11), and three nuts (10).
15-5.
Secure coupler mounting plate (3) to right wheelhouse (2) with three capscrews (7),
six lockwashers (8), three spacers (11), and three nuts (10).
15-6.
Secure coupler mounting plate (3) to right wheelhouse with capscrew (12), ground strap (9), five
lockwashers (8), spacer (11), and nut (10).
15-7.
Secure coupler mounting plate (3) to right wheelhouse with capscrew (6B), three lockwashers (8),
ground strap (9), spacer (11), and nut (10).
15-8.
Install resilient mount (15) on coupler mounting plate (3) with six lockwashers (14) and nuts (13).
2
1
~
Figure 5-38.
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