SECTlON II: HULL AND CAB COMPONENTS
TM 9-2350-256-20
NOTE
Early design models also use jacking screw
(42).
9
Install six direct vision blocks (43) and six prism
lock wedges (46). Apply sealing compound.
Secure with two screws (45). Secure screws with
new lockwire (44).
10
Install two bearing retainer shims (41) in gun ring
assembly (28). Lubricate bearing with grease (see
Appendix J).
11 Install cupola body assembly (37) on gun ring
assembly (28).
CAUTION
When assembling ball bearings (39 and 40)
in gun ring assembly (28), alternate ball
bearings around circumference of gun ring
assembly.
12 Install 90 ball bearings (40), 90 ball bearings (39),
and bearing retainer (38) to gun ring assembly (28).
Secure with 17 screws (35) and 17 new lockwashers
(36).
Change 1
9-41
