TB-9-2510-251-24
TECHNICAL BULLETIN
INSTALLATION, REMOVAL, AND PARTS INSTRUCTIONS FOR ADD ON ARMOR (AOA) AND ASSOCIATED COMPONENTS FOR HMMWV FAMILY OF VEHICLES (FOVs)
JULY 2005
TB-9-2510-251-24 - Page 42 of 212
TB 9-2510-251-24
1-32
6)
Install rear seat backing plates as follows (see figure 1-15).
a.
Position rear seat backing plate support (3) against rear door ramp and with front surface aligned with C-
beam. Transfer two hole locations onto lower C-pillar.
Drill two .375 inch diameter holes in lower C-
pillar.
b.
Install rear seat backing plate support (3) onto lower C-pillar and secure with two capscrews (1), four
washers (2), and two locknuts (4).
c.
Torque capscrews (1) to 10 lb ft (14 N
•
m).
d.
Temporarily install rear seat backing plate (8) onto rear seat backing plate support (3) and secure with
three capscrews (10) and washers (9).
Do not torque capscrews (10).
Transfer two-hole locations to C-
pillar per figure 1-15.
e.
Remove three capscrews (10) and washers (9) securing rear seat backing plate (8).
Remove rear seat
backing plate (8).
f.
Drill two each 17/32-inch holes in C-pillar (centered vertically).
g. Install two upset fasteners (5) into C-pillar.
h. Apply sealing compound to three capscrews (10) and two capscrews (7).
i.
Install rear seat backing plate (8) into vehicle and secure with three capscrews (10), three washers (9), two
capscrews (7), and two washers (6).
Torque three capscrews (10) to 37 lb ft (50 N
•
m).
Torque two
capscrews (7) to 37 lb ft (50 N
•
m).
j.
Repeat steps a. through i. on opposite side of vehicle.
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