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071-325-4425 (SL1) - Employ an M18A1 Claymore Mine

Standards: 1. Conducted a circuit test of the firing device with the blasting cap secured under a sandbag. 2. Installed the M18A1 Claymore mine so- a. The front of the mine was centered on a kill zone. b. The firing device was 16 meters to the rear or side of the emplaced mine and fired from a covered position. c. The mine, firing wire, and firing device were camouflaged. d. The installation was confirmed by conducting a final circuit test. 3. Fired the mine by actuating the firing device handle with a firm, quick squeeze when the target was in the kill zone.

Conditions: You must employ the M18A1 Claymore mine against enemy targets. Given an M18A1 Claymore mine in a bandoleer, an M57 firing device, an M40 test set, and a firing wire with blasting cap, packed in an M7 bandoleer; a sandbag; and two wooden stakes.

Standards:

1. Conducted a circuit test of the firing device with the blasting cap secured under a sandbag.

2. Installed the M18A1 Claymore mine so-

    a. The front of the mine was centered on a kill zone.

    b. The firing device was 16 meters to the rear or side of the emplaced mine and fired from a covered position.

    c. The mine, firing wire, and firing device were camouflaged.

    d. The installation was confirmed by conducting a final circuit test.

3. Fired the mine by actuating the firing device handle with a firm, quick squeeze when the target was in the kill zone.

Performance Steps

1.   Inventory the M18A1 Claymore mine bandoleer, accounting for all accessories. (figure 071-325-4425-1).


Figure 071-325-4425-1. Components of the M18A1 Claymore mine

 

WARNING: During testing and installation, keep the M57 firing device in your possession to prevent accidental firing by someone else.

2.   Conduct a circuit test at the firing point (figure 071-325-4425-2).


Figure 071-325-4425-2. 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. Actuate 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 071-325-4425-3).



Figure 071-325-4425-3. Circuit test of the M18A1 Claymore mine firing system

 

WARNING: The blasting cap must be placed under a sandbag, behind a tree or in a hole in the ground to protect the person performing the circuit check in case the blasting cap detonates.

h. 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.

i.   Place the firing device on SAFE, remove the M57 firing device and M40 test set.

j.   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 071-325-4425-4).


Figure 071-325-4425-4. Firing wire secured

 

b. Place the bandoleer on your shoulder.

c. Unroll the firing wire to the selected installation position.

Note. The firing wire is laid 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 071-325-4425-5).


Figure 071-325-4425-5. 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 the legs are to the front and rear of the mine and the mine will not tip over.


Figure 071-325-4425-6. Aiming knife-edge sight

 

d. Select an aiming point at ground level about 50 meters (150 feet) in front of the mine (figure 071-325-4425-6).

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 (figure 071-325-4425-7 and figure 071-325-4425-8).


Figure 071-325-4425-7. Aiming knife-edge sight (continued)

 


Figure 071-325-4425-8. Aiming knife-edge sight (continued)

 

(2)  On a slit-type peep sight, align the groove of the sight with the aiming point that is 2.5 meters (8 feet) off the ground (figure 071-325-4425-9 and figure 071-325-4425-10).


Figure 071-325-4425-9. Aiming slit-type peep sight

 


Figure 071-325-4425-10. Aiming slit-type peep sight (continued)

 

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 one meter to the rear of the mine so the mine will not become misaligned 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 071-325-4425-11. Arming the mine

 

e. Screw the adapter, with the blasting cap, into the detonator well.

WARNING: Ensure that the face of the mine marked "front toward enemy" and the arrows on the mine point in the direction of the enemy.

f.  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.

Note. The firing position should be in a hole or covered position at least 16 meters to the rear or the side of the emplaced mine.

WARNING: The M40 test set must be used during retest of 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 to see if there are any breaks in the wire (figure 071-325-4425-12).



Figure 071-325-4425-12. Retesting the circuit

 

Note. To ensure that the mine will function properly after installation, retest the firing circuit to check for any break in the wire that may have occurred during installation.

Note. Friendly troops within 250 meters to the front and sides and 100 meters to the rear of the mine must be under cover.

WARNING: You must be behind cover or in a fighting position when retesting the circuit on a Claymore mine with the blasting cap inserted in the detonation well.

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 071-325-4425-13. Firing device in the SAFE 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. Check to make sure each mine is complete and serviceable. 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 no less than 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 correctly aimed. To assist you, place stakes one meter on each side of the aiming point stake. The height of the stakes should not exceed one foot above the ground. During the circuit test, do not attempt to observe the flash on the M40 test set because it may interfere with the soldier's performance. Throughout the evaluation, if the soldier states that he cannot see the flashing light, tell him "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 during the evaluation.

Performance Measures

GO

NO GO

1.   Inventoried the M18A1 Claymore mine bandoleer,  and ensured all components were present and in serviceable condition.

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2.   Conducted a circuit test.

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a. Removed the electrical wire and accessories while leaving the mine in the bandoleer.

 

 

b. Removed the dust cover from the connector of the M57 firing device and from the female connector of the M40 test set.

 

 

c. Plugged the test set into the firing device.

 

 

d. Positioned the firing device bail to the FIRE position.

 

 

e. Actuated the firing handle, and observed the flash in the test set window.

 

 

f.  Removed the shorting plug cover from the connector of the firing wire and from the end of the test set.

 

 

Note. The soldier can place the sandbag over the blasting cap any time before plugging the test set into the firing wire connector.

 

 

g. Plugged the test set into the firing wire connector.

 

 

h. Placed the M57 firing device bail in the FIRE position and actuated the firing handle.

 

 

i.   Placed the firing device on SAFE, removed the M57 firing device and M40 test set.

 

 

j.   Placed the shorting plug cover on the firing wire.

 

 

3.   Installed the M18A1 Claymore mine.

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a. Tied the shorting plug end of the firing wire to fixed object (stake, tree, etc.) at the firing position.

 

 

b. Placed the bandoleer on shoulder.

 

 

c.  Unrolled the wire to the mine emplacement site.

 

 

4.   Aimed the mine.

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5.   Armed the mine.

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a. Secured the wire at the mine site.

 

 

b. Inserted the blasting cap in either detonator well.

 

 

c. Locked the blasting cap in place with the shipping plug priming adapter.

 

 

d. Rechecked the lay of the mine.

 

 

Note. If the soldier tries to put the blasting cap through the hole in the shipping plug priming adapter, he fails performance measure 3.

 

 

6.   Camouflaged the mine.

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7.   Buried the firing wire from the mine back to the firing position.

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8.   Rechecked the circuit.

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a. Removed the electrical wire and accessories while leaving the mine in the bandoleer.

 

 

b. Removed the dust cover from the connector of the M57 firing device and from the female connector of the M40 test set.

 

 

c. Plugged the test set into the firing device.

 

 

d. Positioned the firing device bail to the FIRE position.

 

 

e. Actuated the firing handle.

 

 

f.  Observed the flash through the window on the test set.

 

 

g. Placed a sandbag over the blasting cap.

 

 

h. Plugged the test set into the firing wire connector.

 

 

i.   Actuated the firing handle and observed the window in the test set for a flash.

 

 

j.   Placed the firing device on SAFE.

 

 

k. Replaced the shorting plug cover on the firing wire.

 

 

9.   Fired the M18A1 Claymore mine.

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a. Removed the dust cover from the firing device and firing wire.

 

 

b. Connected the firing wire to the firing device.

 

 

c. Positioned the firing device safety bail in the FIRE position.

 

 

d. Actuated the firing device handle with a firm, quick squeeze.

 

 

e. Assumed a prone position behind cover.

 

 

Note. The soldier may assume the prone position any time before placing the firing device on FIRE.

 

 

f.  Completed steps 9a through 9e sequence.

 

 

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 him what was done wrong and how to do it correctly.

References

 

Required

Related

 

FM 23-23