PK Series Manual (English, 2005) - Forgotten Weapons

Malfunctions and their
Characteristics
Cartridge case does not
eject from the receiver.
Cartridge fails to extract
from the belt or falls out
of extractor claws
Cartridge case does not
eject.
Ruptured cartridge case;
next cartridge does not fit
into the chamber
Reasons for
Malfunctions
• Dirty receiver surface,
gas port, gas cylinder, or
block.
• Faulty cartridge extractor
claws.
• Dirty or faulty feed pawl
or cartridge retainer
pawl.
• Bent belt links or
cartridges.
• Faulty extractor or
spring.
• Dirty chamber.
• Cartridge case rim torn
off.
• Dirty gas port or
cylinder.
• Faulty shutter lever.
• Large headspace
between the breech and
the bolt face
• Faulty cartridge.
UNCLASSIFIED
VII - 8
Corrective
Action
• Eject the cartridge case
and continue firing.
• If same stoppage
reoccurs, clean and
lubricate the receiver, gas
port, and extractor.
• If cartridge extractor and
feed mechanism
components are
functioning properly and
belt and ammo is free of
defects, clean the wpn
and continue firing.
• If wpn components are
defective, send wpn to
the armorer for repair.
• Eject the stuck cartridge
case using cleaning rod;
clean and lubricate
chamber, gas port, gas
cylinder, and receiver.
• If rim of cartridge case
tears off again, turn the
gas regulator to a lower
position.
• If malfunction is due to
faulty extractor, send the
wpn to the armorer for
repair.
• Charge the wpn, and if it
ejects the front part of the
cartridge case of the fired
cartridge, continue to fire.
• If same stoppage
reoccurs, have the
headspace adjusted (at
repair facility).