C10, TM 9-2350-230-12
g
The check valve assembly in closed breech
part of the tube, especially around the forcing
scavenging system should be cleaned at intervals not to
cone and the breech cavity. Smoldering residue,
exceed 100 rounds.
no matter how small, must be removed before
the next round is loaded.
(2) When near maximum firing rate is required,
CAUTION:
Avoid damage to air cylinders,
inspect rear part of tube only. If smoldering
which are under very high pressure.
residue is observed, remove it and also inspect
and clear any smoldering residue from breech
h. Inspect detent hole and replace preformed
cavity before loading the next round.
packing of gun tube-to-detent housing seal every 40
(3) When maximum firing rate is essential,
rounds.
inspection for residue is not required.
i.
If vehicle is not equipped with closed breech
n. When live round is chambered and breech
scavenging system, missile firing causes a high
closed, never turn blasting machine handle unless firing
concentration of carbon monoxide in the crew
is intended. Blasting machine provides direct circuit
compartment. Therefore, crew members should not be
emergency fire capability to 152-mm gun/launcher.
exposed to more than ten missile firings per day. Turret
blower must be on during missile firing to remove toxic
o. Gun-launcher will fire despite loss of safe
gases.
to-fire and ready light indicators.
j
The driver's hatch must be closed for all
1-11.
Grenades and Launchers
main gun firings. All crew members should be inside the
vehicle to prevent injury from muzzle blast of a
conventional round or, in the case of a missile firing in
NOTE. Refer
to TM 3-1330-203-10 for further safety
training with live warhead, to prevent possible fragment
precautions.
spray from early ground impacts.
a. Since the vehicle is within range of
k. Flarebacks have occurred from firing
fragments from the WP grenade M34, the crew should
missles when vehicle is not equipped with closed breech
be inside the vehicle with the hatches secured in the
scavenging system. To reduce the hazard, the nylon
closed position during firing.
and neoprene bags of a conventional round which is to
be fired following a missile firing should not be removed
b. Check condition of grenades and launchers
until it is evident that a flareback did not occur.
as soon as possible after vehicle is subjected to
attacking projectiles or shell fragments to make certain
l.
Missiles should not be fired over friendly
white phosphorous is not leaking onto the hull from
troops in training due to the hazard from early ground
damaged grenade(s).
impacts.
m. The closed breech scavenging system has
been developed to remove smoldering residue from the
gun-launcher.
However, when the vehicle is so
equipped, these precautions should be followed:
(1) When maximum firing rate is not required,
thoroughly inspect the rear
1-7