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Employ an M18A1 Claymore Mine

Conditions: Given an M18A1 Claymore mine in a bandoleer, an M57 firing device, an M40 test set, and a firing wire with blasting cap, all packed in an M7 bandoleer; a
sandbag; and two wooden stakes.

Standards: 1. Conduct a circuit test of the firing device, with the blasting cap secured under a sandbag.
2. Install the M18A1 Claymore mine so that--
a. The front of the mine centers on a kill zone.
b. The firing device is 16 meters to the rear or side of the emplaced mine and is fired from a covered position.
c. The mine, firing wire, and firing device are camouflaged.
d. The installation is confirmed by conducting a final circuit test.
3. When the target is in the kill zone, fire the mine by actuating the firing device handle with a firm, quick squeeze.

Performance Steps
1.        Inventory and account for all accessories in the M18A1 Claymore mine bandoleer (Figure 071-325-4425_01).

Figure 1. Components of the M18A1 Claymore mine.

WARNING: During testing and installation, keep the M57 firing device with you to keep anyone else from firing it accidentally.
2.        Conduct a circuit test at the firing point (Figure 071-325-4425_02).

Figure 2. Circuit test of the M57 firing device and M40 test set.

a.        Remove the electrical wire and accessories while leaving the mine in the bandoleer.
b.        Remove the dust cover from the connector of the M57 firing device and from the female connector of the M40 test set.
c.        Plug the test set into the firing device.
d.        Position the firing device bail to the FIRE position.
e.        Activate the handle of the firing device with a firm, quick squeeze, observing the flash of light through the window of the test set.
NOTE: The flashing light indicates that the M57 firing device and M40 test set are functioning correctly.
f.        Remove the shorting plug cover from the connector of the firing wire and from the end of the test set.
g.        Plug the connector of the firing wire into the test set (Figure 071-325-4425_03).
h.        Place the blasting cap under a sandbag, behind a tree, or in a hole in the ground to protect the person performing the circuit check should the blasting cap

Figure 3. Circuit test of the M18A1 Claymore mine firing system.

i.        Place the M57 firing device bail in the FIRE position and actuate the firing handle.
NOTE: The lamp in the window of the M40 test set should flash.
j.        Place the firing device on SAFE; remove the firing device and the M40 test set.
k.        Place the shorting plug cover on the firing wire.
3.        Install the M18A1 Claymore mine.
a.        Tie the shorting plug end of the firing wire to a fixed object such as a stake or tree at the firing position (Figure 071-325-4425_04).

Figure 4. Firing wire secured.

b.        Place the bandoleer on your shoulder.
c.        Unroll the firing wire to the selected installation position.
d.        Lay the firing wire from the firing position to the mine installation site, because the blasting cap end is on the inside of the firing wire spool.
4.        Aim the mine.
a.        Remove the mine from the bandoleer.
b.        Open both pairs of legs to a 45-degree angle with two legs facing to the front and two legs facing to the rear of the mine (Figure 071-325-4425_05).

Figure 5. Placing and aiming the mine.

c.        Push the legs about one-third of the way into the ground, with the mine facing in the desired direction of fire. In windy areas, or when the legs cannot be pressed
into the ground, spread the legs as far as they will go (about 180 degrees) so that the legs are to the front and rear of the mine and the mine will not tip over.
d.        Select an aiming point at ground level about 50 meters (150 feet) in front of the mine (Figure 071-325-4425_06).

Figure 6. Aiming knife-edge sight.

e.        Position one eye about 6 inches to the rear of the sight.
(1)        On a knife-edge sight, align the two edges of the sight with the aiming point (Figures 071-325-4425_07 and 071-325-4425_08).

Figure 7. Aiming knife-edge sight (continued).

Figure 8. Aiming knife-edge sight (continued).

(2)        On a slit-type peep sight, align the groove of the sight in line with the aiming point that is 2.5 meters (8 feet) off the ground (Figures 071-325-4425_09 and 071-

Figure 10. Aiming slit-type peep sight (continued).

Figure 9. Aiming slit-type peep sight.

NOTE: The aiming point should be in the center of the desired area of coverage, with the bottom edge of the peep sight parallel to the ground that is to be covered with
the fragment spray.
5.        Arm the mine.
a.        Secure the firing wire about 1 meter to the rear of the mine, so the mine will remain aligned if the firing wire is disturbed.
b.        Unscrew one of the shipping plug priming adapters from the mine.
c.        Slide the slotted end of the shipping plug priming adapter onto the firing wire of the blasting cap between the crimped connections and the blasting cap.
d.        Pull the excess wire through the slotted end of the adapter until the top of the blasting cap is firmly seated in the bottom portion of the shipping plug priming
adapter (Figure 071-325-4425_11).

Figure 11. Arming the mine.

e.        Screw the adapter, with the blasting cap, into the detonator well.
f.        Ensure that the face of the mine marked "front toward enemy" and the arrows on the mine point in the direction of the enemy.
g.        Recheck the aim of the mine.
6.        Camouflage the mine.
7.        Bury the firing wire (if possible) from the mine back to the firing position.
a.        Ensure that the firing position is in a hole or covered position at least 16 meters to the rear or the side of the emplaced mine.
b.        Use the M40 test set to test the circuit.
8.        Repeat step 2 to test the circuit after the firing wire is laid out and the cap is placed inside the mine. This is to see if any breaks in the wire have occurred (Figure

Figure 12. Testing the circuit.

a.        To ensure that the mine will function properly after installation, test the firing circuit to check for any break in the wire that might have occurred during the
installation. Any friendly troops within 250 meters to the front and sides or 100 meters to the rear of the mine must be under cover.
b.        When retesting the circuit on a Claymore mine with the blasting cap inserted in the detonation well, remain behind cover or in a fighting position.
9.        Fire the mine.
a.        Remove the dust cover from the firing device and firing wire.
b.        Connect the firing wire to the firing device.
c.        Position the firing device safety bail in the FIRE position (Figure 071-325-4425_13).

Figure 13. Firing device in the FIRE position.

d.        Actuate the firing device handle with a firm, quick squeeze.
e.        Assume a prone position behind cover.
NOTE: The mine is most effective when employed against targets 20 to 30 meters in front of it.

Evaluation Preparation: SETUP: During training, use only inert blasting caps and mines.

At the test site, place one M7 bandoleer containing an inert M18A1 Claymore mine, an M57 firing device, and an M40 test set. Make sure each mine is complete and

Place one wooden stake in the ground at the test position and another at the mine-emplacement point. The distance between the emplacement point and firing point
must be at least 16 meters. The stake at the aiming point should be painted red or some other distinguishable color.

Once the Soldier has emplaced the mine and completed the circuit test, assume a prone position and visually confirm that the mine is aimed correctly. To make this
easier, place stakes 1 meter to each side of the aiming point stake. The stakes should be within 1 foot above the ground.

During the circuit test, avoid trying to observe the flash on the M40 test set. Doing so could interfere with the Soldier's performance.

Throughout the evaluation, if the Soldier says that he or she cannot see the flashing light, tell him or her, "Continue with the test."

BRIEF SOLDIER: Tell the Soldier to perform a circuit check on the firing wire and then install the mine. (Camouflaging and burying the wire are not covered in this

Performance Measures        GO        NO-GO
1.        Inventoried the M18A1 Claymore mine bandoleer, and ensured all components were present and in serviceable condition.        ——        ——
2.        Tested the circuit.        ——        ——
3.        Installed the M18A1 Claymore mine.        ——        ——
4.        Aimed the mine.        ——        ——
5.        Armed the mine.        ——        ——
6.        Camouflaged the mine.        ——        ——
7.        Buried the firing wire from the mine back to the firing position.        ——        ——
8.        Retested the circuit.        ——        ——
9.        Fired the M18A1 Claymore mine.        ——        ——

Evaluation Guidance: Score the Soldier GO if all performance measures are passed. Score the Soldier NO-GO if any performance measure is failed. If the Soldier
scores NO-GO, show the Soldier what was done wrong and how to do it correctly.

Required        Related
FM 23-23        
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