TM 9-2350-222-10-3
MAINTAIN MAIN GUN (MAINTAIN BREECHBLOCK ASSEMBLY) - Continued
4. Push in on clutch (AU). At the same time, move BREECH
OPERATING HANDLE (Z) up and forward while second crewman
pumps chain hoist handle until crank pins (AV) go into
grooves (AW) on bottom of breechblock and BREECH OPERATING
HANDLE latches. Shake breechblock if it sticks and continue
raising breechblock until it will not rise anymore.
5. Pull upon breechblock
release lever (AX)
and pump chain hoist
handle until breechblock
(L) is fully seated.
6. Turn screw head (S) by hand
clockwise as far as possible.
7. Using adjustable wrench,
turn locknut (R) clockwise
until tight.
TA133015
3-185