Care and Cleaning

6.1 Responsibility. The user (firer) is responsible for the care, cleaning, and condition of the H&K Pistol P7M13 at all times. Defects and malfunctions are reported to the unit's armorer, or commercial weapons are returned to HK Inc. for maintenance. In military units, the armorer is responsible for replacement or repair of defective parts, maintaining and accounting for replacement parts in accordance with prescribed supply procedures, and forwarding unit weapons to his direct support unit for any required maintenance beyond his capabilities. In the event of breakage. Beta lights (Part 61, Figure 3) on sights (items available only on H&K P7M13 commercial models) will be replaced by HK, Inc. under terms of the pistol's warranty or at nominal cost.

6.2 Tools and Materials. Commercial tools and materials for the care and cleaning of the H&K Pistol P7M13 are shown in Figure 17. U.S. Government issue cleaning materials equally are acceptable for the maintenance of this pistol. However, no metallic objects; synthetic materials, e.g., nylon or Perlon cloth (when the weapon is hot from firing); chemical solvents, e.g., petroleum ether; or cold or hot water should be used on this weapon. In addition to materials depicted in the kit at Figure 17, the following materials also may be used in the care and cleaning of th H&K Pistol P7M13.

6.2.1 Cleaning Rags. Except as noted for synthetic materials above, cleaning rags may be used as required.

6.2.2 Petroleum. Except as noted above for petroleum ether products, petroleum may be used in the care and cleaning of the H&K Pistol P7M13 as required.

6.2.3 Gun Oil or Grease. Gun oil or grease that is free of chlorine and acids may be used to clean the H&K Pistol P7M13.

6.2.4 Chip of Wood. A chip of wood may be used in the care and cleaning of the H&K Pistol P7M13 for assembly, disassembly, or rubbing off carbon.

6.3 Ordinary Cleaning and Lubrication. The

H&K Pistol P7M13 is cleaned following each use by the user (firer). For this purpose, the pistol is disassembled as far as it is necessary to clean all fouled parts. Disassembly, however, normally is not required beyond the three main groups of the weapon. The extent of the weapon's disassembly nevertheless will depend on the number of rounds fired and the compound of the propellant in the ammunition used during firing. In routine cleaning operations, the various parts of the pistol are treated as follows:

6.3.1 Slide. The slide of the pistol is cleaned with a brush or cloth and then lightly lubricated with oil.

6.3.2 Receiver and Barrel. The barrel is cleaned by pulling a brush, patches, or wicks through it with the pull-through HK chain or a U.S. Government normally issued cord. All brushes, patches, or wicks are pulled clean through from the weapon's chamber to its muzzle. Initial bore cleaning should be done as soon after firing as possible while the barrel is still warm to the touch. Cleaning with brushes, patches, or wicks continues until no dirt is shown on a patch or wick. Other parts of the barrel and receiver group are cleaned with brushes and cloths. Both the inside and outside of the barrel is then lightly oiled. Cleaning of the bore is repeated on each of three days after firing.

6.3.3 Magazine. Following normal use, dirt and impurities are removed from magazine lips and the follower with brushes and cloth. If the magazine has been subjected to sand and other dirt, It is disassembled and thoroughly cleaned. Following all cleaning operations, the magazine and all its parts are lightly lubricated.

6.4 Thorough Cleaning. While the degree of fouling of the H&K Pistol P7M13 and the extent of its normal cleaning depends on the number of rounds fired in the weapon and the compound of the propellant in used ammunition, a thorough cleaning of the weapon is required at regular intervals of not less than one year and/or after firing 1,000 rounds. Such cleaning operations are conducted on the various major assemblies of the H&K Pistol P7M13 as follows:

6.4.1 Slide. Rinse the slide of the H&K Pistol P7M13 in petroleum and clean it thoroughly with a brush and cloths to remove all dirt and impurities; wipe the slide with a dry cloth, and lightly lubricate it. Never use hard objects to clean the slide as they may destroy its finish. The firing pin block spring normally is not removed from the firing pin block as its spring could be damaged or distorted. When the firing pin block and its spring are being cleaned with a brush, care should be exercised to prevent bristles from becoming stuck to the firing pin block as they may cause these parts to stick during firing. It is not necessary to disassemble the piston assembly to clean it. The

Figure 17. Cleaning kit, H&K Pistol P7M13.

1 Storage Case

2 Oiler

3 Cleaning brush

4 Oil brush

5 Cleaning brush

6 Pull-through chain

7 Cleaning tv/c*

piston may be thoroughly cleaned with a cloth and lightly lubricated. Never use sharp edges to clean the front section of the piston as they may damage it. Powder residue between piston rings should be allowed to remain as it does not affect operation of the weapon since the piston is self-cleaning during firing. Firing pin assemblies, however, are disassembled during thorough cleaning operations. For this disassembly, the thumb is used to rotate the firing pin retainer and detach the firing pin assembly from the slide. The firing pin assembly is washed in petroleum, dried, lightly lubricated, and reassembled.

6.4.2 Barrel and Receiver. The piston cylinder is cleaned In a similar manner to the barrel using a brass brush. The brush is screwed up and down the inside walls of the cylinder prior to being soaked. After brushing, tap the receiver barrel end down several times on a flat surface to remove the carbon from inside the cylinder. Other moving parts of the receiver group are soaked in petroleum, dried, and lightly oiled. The barrel also is cleaned with brushes, patches, and/or wicks soaked in oil, During barrel cleaning, the flutes of the chamber are cleaned with a brass brush and oil. After the barrel and chamber have been cleaned, oiled wicks or patches are pulled through the barrel from the chamber to its muzzle to lightly lubricate the bore. Outside surfaces of the barrel also are lightly lubricated. Following initial cleaning, the barrel and chamber are cleaned for the next three days after firing by pulling a brush, wicks, or patches from the chamber to the muzzle until they show no dirt. The bore and chamber are lightly oiled after each cleaning operation.

6.4.3 Magazine. The magazine should be disassembled with care as bending of the magazine follower spring (Part 55, Figure 3) could cause failure to feed—problems by varying the tension of that spring. Its component parts are washed in petroleum; all dirt is removed, especially from the interior of the magazine's lips; the parts are dried; lightly lubricated; and reassembled.

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  • nathaniel ritchie
    Can i use brass brush on h&k p7 piston?
    4 years ago

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