Operation and function

6-23. Before preparing the launcher for use, insert earplugs, unsling the weapon from your shoulder, and inspect its overall condition.

• Place the rocket launcher in the ready-to-fire position (Figure 6-14).

■ Keeping the weapon muzzle pointed downrange, face to the rear and place the weapon under your left arm.

■ Remove the transportation locking pin by pulling the lanyard or pin body.

■ Depress the tube release button with your left thumb, grasp the rear tube (inner tube) just in front of the end cap with your right hand, and extend the inner tube rearward until it stops. A yellow band is visible at the inner tube front end when the tube is fully extended. Release the tube release button.

Figure 6-14. Launcher tube extension procedures.

■ Rotate the inner tube clockwise (in the direction of the arrow) until it locks (Figure 6-15).

■ Rotate the inner tube clockwise (in the direction of the arrow) until it locks (Figure 6-15).

Figure 6-15. Locking the inner tube.

■ Verify the inner tube is locked by attempting to rotate the inner tube counterclockwise (opposite to the arrow).

NOTE: If the tubes are not locked, the weapon will not arm.

■ The launcher is now in the ready-to-fire position.

• Fire the rocket launcher.

■ Raise the weapon out and away from your body. Keep the weapon pointed downrange while pivoting your body 180 degrees to face the target, and place the weapon on your right shoulder.

■ Hold the center of the outer tube with your right hand, reach underneath the tube with your left hand, grasp the shoulder stop, and pull it rearward until it deploys from the shoulder stop cover.

■ Reach forward with your left hand, grasp the front sight cover, press down and slide it rearward.

■ With your left hand, grasp the rear sight cover, press down and slide it forward.

■ Grasp the firing mechanism cover with your right hand and rotate the cover all the way forward until the cover is flush with the outer tube. The word ARMED can be seen in red letters when the cover is opened (Figure 6-16).

Figure 6-16. Deploy sights and arm firing mechanism.

NOTE: If the firing mechanism cover is not flush with the launcher tube, the weapon will not arm.

■ Pull the shoulder stop against your shoulder, and adjust the rear sight for correct range.

■ Check the backblast area, and aim the weapon at the target.

■ Place the fingertips of your right hand on the safety button (located on top of the firing mechanism) and press down; then place your right thumb on the red trigger button.

■ Press the trigger button forward with the thumb of your right hand until the weapon fires. • The following is the sequence of events when the weapon is fired.

■ Pressing the safety button and then the trigger button ignites the propelling charge; rocket motion begins (Figure 6-17).

■ The propelling charge burns out before the rocket's exit.

■ The rocket exits the launch tube.

NOTE: When the rocket has traveled 15 meters, the fuze arming cycle is complete.

■ The rocket impacts the target and the warhead detonates.

Figure 6-17. Sequence of firing events.

DANGER

WHEN OPERATING THE M141 BDM, KEEP THE LAUNCER POINTED DOWNRANGE. ENSURE YOUR WHOLE BODY IS CLEAR OF THE MUZZLE AND REAR OF THE LAUNCHER, AND ENSURE THE BACKBLAST AREA IS CLEAR.

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