TM 9-2350-222-10-3
MAINTAIN MAIN GUN (MAINTAIN BREECHBLOCK ASSEMBLY) - Continued
8. Pull out and turn knob
(N) on chain hoist (D)
to get ready for lowering
breechblock.
WARNING
Keep clear of breechblock while you
are removing it. Chain hoist could slip
or break.
9. Locate breech closing
spring adjuster (R).
NOTE
Breech closing spring adjuster (R)
will spring counterclockwise when
you push plunger (S) in, unless you
control adjuster with spanner
wrench (F).
10. Release tension on adjuster (R).
a. Put tips of spanner wrench
(F) into holes in adjuster (R).
Apply pressure to adjuster
(R) in a clockwise direction.
b.Using screwdriver (A), mess
in on-plunger (S).
c. Move spanner wrench (F)
counterclockwise slowly
until all tension is off
adjuster (R).
d. Release plunger (S).
3-175
Change 3