when in the closed position, forms a part of the clearing
cam path. You may remove the housing cover to install
or remove the bolt assembly.
The locking and unlocking cams are part of the
housing assembly. The gun-indexing pin (timing pin) is
located on the housing (fig. 6-3). It is used to time the
gun when it is mated with the ammunition handling
system, or when you perform loading/unloading
procedures.
Lubricator assembly. A lubricator assembly (fig.
6-7) is attached externally to the gun housing assembly.
It is used to lubricate the bolt assemblies during gun
operation. During gun acceleration/deceleration and
when the gun is firing, an inertia-actuated pump located
within the lubricator assembly pumps the lubricant
(DOD-L-85336) through a metal tube to the gun
housing assembly. You can refill the lubricator
assembly
when
performing
normal
maintenance
procedures.
REVIEW NUMBER 1
Q1.
List the naval aircraft that carry the M61A1
20-mm automatic gun.
Q2.
When installed in naval aircraft, the M61A1
gun has a pilot selectable firing rate of
__________________________.
Q3.
List the primary parts of the M61A1 gun.
Q4.
What is the purpose of the muzzle clamp
assembly?
Q5.
The M61A1 gun has six rifled barrels that are
secured to the rotor by ______________.
Q6.
What component has front mounting points so
the gun can be mounted in the aircraft?
Q7.
The rounds are guided into and out of the
extractor lip of the breech-bolt assemblies by
___________.
6-6
Figure 6-7.—Lubricator assembly installation (F-14).
