Section III Operations

1. GENERAL. Before firing the American 180, thefirer must know how to fill the magazine; must know how to load, fire, and unload the weapon; and must observe safety precautions. These points are covered in this section.

2. TO FILL MAGAZINE CAUTION: Before attempting to fill the magazine, all spring tension should be released from the magazine winder mechanism, or,

Carbine Full Auto Parts

if the magazine is partially filled, the magazine winding brake should be engaged.

a Press your thumbs upon the clips of the magazine winding device and catch it with your fingers (figure 11). b. Press the lock on the base and turn the magazine base until you can see the filled chamber through the loading slot of the base (figure 12). The marking arrow visible on the magazine should be positioned below the narrow protrusion of the base.

Figure 12

Cartridge Siot
Figure 13

c. Lay the first cartridge in the slot on the base of the magazine (figLire 13). Press the lock of the magazine and slowly rotate the magazine base. The cartridge wiil go into the magazine without "force of any kind Repeat this process for 59 rounds d. Afterhaving loaded 59 rounds, you have to turn the loading slot over the full chamber (Then you will feel a resistance, called step resistance.) The hading siot will open once again with an "empty" chamber. and repeal the whole process. Loading the second and the third layers is performed lust like the first one.

CAUTION: Da not use force when inserting rounds. Do not skip a Chamber, tt is advisable to always load full layers of ammunition, either load 59 rounds, 118 rounds, or the full limit of 177 rounds. This prevents the magazine from "dropping" loose rounds when the magazine is installed or removed.

Note; It is advisable to put the magazine on a non-slip surface when loading. The magazine also can be loaded by means of a special loading device.

e. Installation of the magazine wi nding device isdone by pushing the clips of the magazine winding device into the holes of the base until they lock in place (figure 14).

CAUTION: A winding device improperly installed may come off during firing and damage the spring.


a. Insert the wide protrusion of the magazine base Into the magazine guide of the barrel and press the narrow protrusion tightly until the magazine snaps into place (figure 15).

Note: Pulling back the magazine clip with your thumb facilitates the installation of the magazine.

b. Winding the magazine. Wind up clockwise until it stops, about 3 '/a turns for a full magazine (figure 16). Winding device stop lever must not be under tension.

American 180

Figure 16

C. Pull back on the bolt handle until it stops, and push it forward into its forward most position. The American 180 is now ready to (ire.


a. In order to remove a partial or full magazine, the magazine winding device stop lever must be placed In the position marked "F1 (outside away from center).

b Pull back on magazine clip and lift off magazine. Inspect the chamber (look and feel).

CAUTION: If magazine is only partially filled, do not wind completely. Wind only turns for each (59 rounds) layer

Section IV: Malfunction, Stoppages and Immediate Action


a. A malfunction is a failure of the weapon to function satisfactorily b. Astoppageisanyunintentional interruption in the cycle of operation. If the American 180 stops firing through no fault or intention of the firer, or an attempt to fire is made and the weapon fails to fire, then a stoppage has occurred. The firer must be abie to reduce a stoppage and continue firing.

c. Immediate action is the prompt action taken by the firer to reduce a stoppage without considering the cause.

Figure 16


Safety cannot be overemphasized.

a Never consider a weapon to be safe.

b. Never playfully or carelessly point a weapon at anyone.

c. Load the weapon only when ready to fire.

d. Take safety off only when weapon is raised tofire.

e. Never leave any obstruction in the muzzle or base.


a. Failure to function freely-sluggish operation of the American 180 Is usually due to excessive friction caused by dirt, lack of proper lubrication, burred or dented guide rod or dented or bent receiver.

b. Uncontrolled automatic fire (runaway gun)—uncontrolled automatic fire is fire that continues after the trigger has been released This may be caused by




How to Reduce

Failure to Feed

Failure to Chamber

Failure to Fire

Failure to Extract

Failure to Eject

Failure to Cock

Dirty or dented magazine

Weak or broken magazine spring

Deformed ammunition

Worn or broken magazine catch

Dirty chamber

Obstruction in chamber

Weak drive spring

Defective ammunition

Defective firing pin

Weak driving spring

Broken extractor

Nol likely to occur

Worn sear Worn sear notch Bent guide rod Dirt behind cocking knob

Replace magazine Replace magazine Replace ammunition Replace catch Clean chamber Remove Replace spring Replace ammunition Replace bolt Replace driving spring Replace extractor

Replace sear Replace bolt

Replace or straighten rod Clean cocking knob the following:

(2) Worn sear notch.

(4) Short recoil.

In case Of uncontrolled automatic fire, keep the gun pointed at the target.


a. Stoppages are classified in accordance with the six steps in. the cycle of operation. Stoppages are usually the result of faultyammunltionor improper care of Ihe gun A knowledge of how the gun functions will enable the firer to classify and correct the stoppage. Listed below are the causes ol stoppages which might occur:

(11 Failure to Feed—cartridge from the magazine is not positioned in the feed block in Iront ol the bolt Most stoppages of submachine guns are failure to feed, caused by defective or dirty magazines.

(2) Failure to Chamber-cartridge from the feed block is not seated in the chamber.

(3) Failure to Fire—the cartridge is chambered but does not fire

(4) Failure to Extract—if the cartridgefires.thechamber pressure will usually push the empty cartridge case Out Of the Chamber. If the cartridge case is not completely removed Irom the chamber and the bolt is relracted, then there is a failure to extract This stoppage seldom occurs.

(5) FailuretoEject—theemply cartridge case is not e-jccted from the receiver.

(6) Failureto Cock—if the bolt is retracted and is not held by the sear, or if during firing the bolt does not move to the rear lar enough to clear the cartridge in the Iced block, the weapon has failed to cock, b. Common stoppages—the two most common stoppages are:

(t) Failure to Feed—usually caused by dirty magazine, or from a magazine which is not wound properly, or from a damaged magazine. (2) Failure to Fire—usually caused by defective ammunition.

a. Cause of stoppages—the chart on the preceding page lists common causes of various stoppages, d. Prevention of stoppages-periodic inspection and proper care and cleaning will reduce the possibility of the American 180 having stoppages.


a. As the tirst step in clearing a stoppage, pull back on the bolt handle and return it to its forward most position Inspect the chamber from the bottom of fhe weapon, through Ihe ejection port for the presence of ¡ammed ammunition. This is usually caused by defective ammunition Place the magazine winding brake in the "Fp position, remove the m agaz i ne and clear the jammed rounds manually from the chamber area. Replace the magazine, remove the magazine winding brake, pull the bolt handle to the rear and return it to the 'closed position and again attempt to fire, b. If a failure toflre occurs, again, move the magazine winding device to the brake "F" position Remove the magazine and inspect the weapon in order to locate and clear the stoppage. Replace the magazine, move the winding device leverto the center and continue to tire-

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  • roberto
    How to load an american 180 magazine?
    7 years ago

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