TB-9-2320-387-35-4
SINGLE CHANNEL GROUND AND AIRBORNE RADIO SYSTEM (SINCGARS) AN/VRC-88F, AN/VRC-89F, AN/VRC-90F, AN/VRC-91F, AN/VRC-92F
TECHNICAL BULLETIN; INSTALLATION INSTRUCTIONS
OCTOBER 2006
TB-9-2320-387-35-4 - Page 17 of 109
CHAPTER 5
INSTALLATION PROCEDURES
Section I. SCOPE
This chapter provides instructions for installation of the following C4ISR equipment:
• Single Channel Ground and Airborne Radio System (SINCGARS)
• Precision Lightweight Global Positioning System Receiver (PLGR)
• Enhanced Position Location Reporting System (EPLRS)
• Vehicular Intercommunications Set (VIS)
• Force XXI Battle Command, Brigade-and-Below (FBCB2)
• HF 150 Watt Radio
• TAC-SAT Radio
• Additional terminal boards in the vehicle
When installing C4ISR equipment, be sure to read and follow instructions and illustrations carefully.
Section II. INSTALLATION OF TERMINAL BOARDS
Use the following procedure to install additional terminal boards to provide adequate power connections.
Vehicles must have dual-voltage alternators installed in order to have both 12V and 24V terminal boards
installed.
Section III. CAB ENCLOSURE PANEL, TERMINAL BOARD, AND COVER MODIFICATION
NOTE
• Late model M1114 vehicles come with cab enclosure panel and
24V terminal board. For early model M1114 vehicles, perform
sections III through VI. For late model M1114 vehicles
begin, at section VII.
• For vehicles without cab enclosure panel, begin with step 3-1.
• For vehicles with cab enclosure panel, begin with step 3-3.
• All dimensions are in inches.
3-1.
Place enclosure panel (3) in position. Locate, mark, and drill five 0.159-in. diameter holes marked A
and B in B-beam (1) and battery box (2).
3-2.
Enlarge two lower mounting holes marked A to 0.390-in. diameter, and install two inserts (4) in
battery box (2).
5-1
TB 9-2320-387-35-4
Figure 5-1.
3. ENCLOSURE PANEL – 12447141 – QTY. 1
4. INSERT – 12446871-2 – QTY. 2
1
2
3
4
~
A
A
B
B
B
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