1 Install gun lock clamp assembly (1) on
5 Apply epoxy resin adhesive (item 2 appx
machine gun mount pintle (2) and secure
C) to bonding surfaces of rigger's cupola
with setscrew (3), rigger's cupola set-
assembly cupola ring (11) and install new
screw (4) and hexagon plain nut (5).
rigger's cupola hatch crash cushioning pad
(10). Center pad in rigger's cupola assem-
2 Apply grease (item 12, appx C) to 78 ball
bly cupola ring within 0.030 in. (0.076
bearings (6), 78 cupola ring ball bearings
cm) and bend tabs to hold firmly in place.
(7), upper cupola retainer (8), and lower
cupola base retainer (9).
6 Install upper cupola retainer (8) on rigger's
cupola assembly cupola ring (11).
3 Install lower cupola base retainer (9). In-
stall 78 ball bearings (6) and 78 cupola
7 Install four socket head capscrews (12)
ring ball bearings (7) alternately around
securing lower cupola base retainer (9) to
lower cupola base retainer (9).
8 Install cupola ring release handle retaining
strap (13), two new Iockwashers (14),
Dry cleaning solvent (SD2) is toxic
and flammable. Wear protective gog-
9 Install helical compression spring (16) on
headless shoulder pin (17). Install headless
gles and gloves and use only in well-
(18) and headless grooved pin (19) on rig-
ger's cupola assembly cupola ring (11).
pad (10) was removed, use dry cleaning
solvent (item 10, appx C) and wire brush
to remove residual adhesive from bonding