C14, TM 9-2350-230-12
TABLE 8-4. TROUBLESHOOTING - CONTINUED
Malfunction
Probable cause
Corrective action
GUN-LAUNCHER-
Continued
128.
e. Detent release plunger on
e.
Disassemble loading tray
not function - continued
loading tray seized in detent
and free up plunger travel
release position
in mounting bracket
129. Missile cap ejector
a. Ejector not cocked
a. Adjust ejector cocking
mechanism does not op-
bracket setscrew
erate trigger lever in
b. Ejector trigger lever set-
b. Adjust ejector trigger lever
eject (down) position
- screw out of adjustment
c. Ejector (finger) not posi-
tioned correctly.
d. Worn or defective parts in
d.
Disassemble loading tray
loading tray and ejector
and ejector group and re-
group
place worn or defective
parts.
130.
Gases accumulate in
a.
Defective scavenging system.
a. Repair if within scope of or-
turret after firing
ganizational maintenance.
Otherwise notify support
maintenance.
b.
Defective gun tube obtura-
tor gasket.
c.
Notify support maintenance.
seals
d.
Remove, clean and in-
d. Defective check valve: indi-
-spect. If erosion is evident
cated by over-pressure red
on valve, seal, or sealing
stem extending beyond outer
surface of tube, notify
surface
support maintenance.
CAUTION: Avoid damaging air cylinders, which are under very high pressure.
130. 1. Smoke and fumes
a.
Erosion on breechblock at
a.
Notify support maintenance.
rear face of seal
of breech from erosion
b. Erosion on firing mechanism.
b.
Replace firing mechanism.
past firing mechanism.
GUN-LAUNCHER MOUNT
131.
Gun-launcher hangs out
Defective spring washer set
Notify support maintenance.
of battery.
132.
Rapid loss of precharge
a.
Defective hydraulic bleed
a.
Bleed off all pressure and
pressure in recoil mech-
valve or leak in bleed tube or -
replace check valve, tube,
anism
fitting
or fitting (fig. 11-7, 8).
b. Defective check valve in
b. Bleed off all pressure and
pump-to-recoil mechanism
replace check valve or
tube or defective hand pump
allowing hydraulic fluid to
be by-passed to reservoir.
8-42