Cleaning, Lubrication and Preventative Maintenance of the M9 Pistol

CAUTION: When
using CLP, do not use any other type cleaner. Never mix CLP with RBC or LSA.

1. Clear and disassemble the weapon.
   • The first step in maintenance is to
     clear the weapon. This applies in all situations, not just after firing.
     Soldiers must always assume the weapon is loaded. To clear the pistol,
     perform the following procedures. 

   1. Place the decocking/safety lever in
      the SAFE down position.
   2. Hold the pistol in the raised pistol
      position.
   3. Depress the magazine release button
      and remove the magazine from the pistol.
   4. Pull the slide to the rear and
      remove any chambered round.
   5. Push the slide stop up, locking the
      slide to the rear.
   6. Look into the chamber to ensure that
      it is empty.

   • To disassemble the pistol, perform the
     following procedures.
      
     1. Depress the slide stop and let the
        slide go forward.
     2. Hold the pistol in the right hand
        with the muzzle slightly raised.
     3. Press the disassembly lever button
        with the forefinger.
     4. Rotate the disassembly lever
        downward until it stops.
     5. Pull the slide and barrel assembly
        forward and remove it from the receiver.
     6. Carefully and lightly compress the
        recoil spring and spring guide. At the same time, lift up and remove
        them.
     7. Separate the recoil spring from the
        spring guide.
     8. Push in on the locking block plunger
        while pushing the barrel forward slightly.
     9. Lift and remove the locking block
        and barrel assembly from the slide.

2. Wipe or brush dirt, dust, and carbon
   buildup from the disassembled pistol.
3. Use CLP to help remove carbon buildup
   and stubborn dirt and grime.
4. Pay particular attention to the bolt
   face, guide rails on the receiver, grooves on the slide, and other
   hard-to-reach areas.

NOTE: Do not use mineral
spirits, paint thinner, or dry cleaning solvent to clean the pistol. Use
only issued lubricants and cleaners, such as CLP or LSA.

5. Clean the bore and chamber using CLP and
   fresh swabs.
6. Lubricate the pistol by covering all
   surfaces including the bore and chamber with a light coat of CLP. In
   extremely hot or cold weather, refer to the technical manual for
   lubricating procedures and materials.

GENERAL ASSEMBLY:

To assemble the M9 or M11 pistol, simply
reverse the procedures used to disassemble the pistol.

1. Grasp the slide with the bottom facing up.
2. With the other hand, grasp the barrel assembly with the locking block
   facing up.
3. Insert the muzzle into the forward end of the slide and, at the same
   time, lower the rear of the barrel assembly by aligning the extractor
   cutout with the extractor.

NOTE: The locking block
will fall into the locked position in the slide.

4. Insert the recoil spring onto the recoil spring guide.

CAUTION: Maintain spring
tension until the spring guide is fully seated in the cutaway on the locking
block.

5. Insert the end of the recoil spring and the recoil
   spring guide into the recoil spring housing. At the same time, compress
   the recoil spring guide until it is fully seated on the locking block
   cutaway.

CAUTION: Do not pull the
trigger while placing the slide on the receiver.

6. f. Ensure that the hammer is unlocked,
   the firing pin block is in the DOWN position, and the decocking/safety
   lever is in the SAFE position.
7. g. Grasp the slide and barrel assembly
   with the sights UP, and align the slide on the receiver assembly guide
   rails.
8. h. Push until the rear of the slide is a
   short distance beyond the rear of the receiver assembly and hold. At the
   same time, rotate the disassembly latch lever upward. A click indicates a
   positive lock.

FUNCTION CHECK:

Always perform a function check after the
pistol is reassembled to ensure it is working properly. To perform a
function check:

1. Clear the pistol in accordance with the
   unloading procedures.
2. Depress the slide stop, letting the
   slide go forward.
3. Insert an empty magazine into the
   pistol.
4. Retract the slide fully and release it.
   The slide should lock to the rear.
5. Depress the magazine release button and
   remove the magazine.
6. Ensure the decocking/safety lever is in
   the SAFE position.
7. Depress the slide stop. When the slide
   goes forward, the hammer should fall to the forward position.
8. Squeeze and release the trigger. The
   firing pin block should move up and down and the hammer should not move.
   
9. Place the decocking/safety lever in the
   fire POSITION.
10. Squeeze the trigger to check double
    action. The hammer should cock and fall.
11. Squeeze the trigger again. Hold it to
    the rear. Manually retract and release the slide. Release the trigger. A
    click should be heard and the hammer should not fall.
12. Squeeze the trigger to check the single
    action. The hammer should fall.