MIL-DTL-45500E
except the M197 and M197E1 gun, which does not have a clearing
sector.
3.3.6 End plate. The end plate shall be positioned by
dowel pins and retained on the housing by the coupling clamp.
There shall be no relative movement of these parts.
3.3.7 Firing contact assembly. The firing contact assembly
including conductors and insulators shall be securely fastened to
the housing in accordance with the applicable drawing.
3.3.8 Guide bar. The guide bar shall be retained on the
housing assembly by spring pins.
3.3.9 Housing assembly. The bolts securing the two housing
halves shall be torqued as specified on the applicable drawings.
The roller guide shall be securely fastened to the housing as
specified on the applicable drawings and shall allow free
movement after the rotor and bolts are installed. There shall be
no interference with bolt assemblies cycling in clearing cam
tracks.
3.3.10 Housing cover assembly. The housing cover assembly
shall be retained on the housing assembly by the cover lock pins.
The hinged housing cover shall move through its full range of
travel when opened from either side. This requirement is not
applicable to M197 and M197E1 Guns
3.3.11 Indexing pin assembly. The indexing pin assembly
shall be assembled to the housing assembly and lock wired. The
indexing pin shall move through its full range of travel without
binding when manually depressed, and shall return and be held in
the extended position by spring action after positioning the
barrels.
3.3.12 Recoil adapters. The recoil adapters shall be
fastened securely to the retainer assembly except for M61A1 and
M61A2 guns which incorporate an Automatic gun recoil mechanism
with integral mountings for the recoil spindle assemblies. The
recoil adapters, or recoil mechanism shall provide controlled
fore-aft deflection of the gun so as to reduce firing loads
transmitted to the gun mounts. Spring rates and dampening of the
recoil adapters spindles shall be as specified on applicable
drawings. The spindle retainer shall be finger tightened to
remove end play of the spindle assembly in the housing and lock
wired. This requirement is not applicable to M197 and M197E1
Guns.
3.3.13 Bearing retainer assembly/automatic gun recoil
mechanism. The bearing retainer assembly or automatic gun recoil
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