When installing or removing the weapons
carrier and while handling the weapon, be
particularly careful to avoid damaging the
safety switch. When using a Mk 49 Mod 1
weapons carrier, do not install the safety
switch until the weapon has been positioned
on the skid adapter.
a. Plug the male connector of the switching
unit firmly into the bomb-charging
receptacle, piercing the diaphragm. Then,
slide the switching unit retaining nut,
threads down, over the cable and lanyard.
Secure the arming safety switch in the
bomb-charging receptacle by screwing the
switching unit retaining nut into the bomb
and tightening it with the wrench supplied.
When the nut is seated on the top of the
switching unit, the coaxial cable is aft of
Insert the free end of the cable through the
nearest bomb suspension lug to safeguard
Assembly of Conical Fin to the Bomb Body
Prepare, inspect, and install a conical fin as follows
Inspect fin for damage.
Ensure excess paint is removed from fin flange.
Ensure access cover is secure.
For a conical fin, retract all fin-mounting
setscrews until screws are flush with the inside
of the fin flange (all setscrews must be
For a BSU-33 fin, ensure the clamp bolt on the
band is retracted.
Ensure index pin in fin flange is not damaged.
Attach the arming wire to the aft lug (fig. 13-7).
Thread the free end of Mk 3 arming wire from
aft bomb lug through MAU-182 swivel ring
and arming wire hole in top of fin.
Align fin behind bomb body with fin in the
Align pop-out pin with arming wire hole in top
Thread arming wire through the hole in top of
the fin, and then through the fuze pop-out pin
(fig. 13-5) and through the hole in bottom of fin
Remove safety pin from pop out pin (Mk 376).
Figure 13-7.Conical and BSU-33 series fin installation.