User Manual

The following table details the failures, causes that motivate
them and ways to fix them.
FAILURE MOTIVATING CAUSE HOW TO FIX
Failure to fire. a) Defective cartridge due to manufacture,
humidity of the primer or powder.
b) Firing pin is broken.
c) Due to a foreign body or a dirty firing
pin chamber.
d) Bent extractor
a) Remove the magazine.
Verify the mark of the firing pin on the
primer.
Introduce an unmarked cartridge directly
into the chamber and fire. Repeat the
operation with other cartridges. If
acceptable marks are found on the primer
of the misfired cartridge, change the
cartridge lot. If no marks appear the cause
is b), c) and d).
b) Replace the firing pin.
c) Examine the bolt assembly and firing
pin support and clean well.
d) Replace extractor.
Failure to extract. 1) Not enough gas pressure applied to the
bolt head, due to a dirty chamber.
2) Broken extractor.
3) Loss of elasticity in the spring of the
extractor hook.
1) Clean and oil sparingly the chamber,
bolt head chamber and guides, place a drop
of oil on the exterior of the rollers.
2) Replace.
3) Replace.
Failure to eject. 1) Due to a dirty chamber, bolt head and
guides that prevent the cartridge base from
hitting the ejector.
2) Broken ejector lever.
1) Clean as indicated in step 1) of the
failure to extract.
2) Replace the ejector lever.
Weapon does not fire when charged
manually.
1) Weapon was not manually charged
correctly.
2) Magazine was loaded with more than 20
rounds, forcing it.
1) When loading with the cocking lever
manually, do not follow the lever forward.
The lever should be pulled back
energetically and released abruptly. If in
spite of this the bolt assembly does not
advance forward to its locked position,
shake the weapon energetically forward; as
a last try, remove the magazine, and
carefully lock it in again.
2) Remove the magazine and leave only 20
cartridges in it.
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