Manual

2.7. Cleaning and lubrication

2.7.1. The rifle should be cleaned in the following cases:

a. when preparing the rifle for firing;

b. after firing with live and blank ammunition, immediately after

finishing the fire;

c. after guard duty or field exercises without firing, just on

return to the barracks;

d. in combat situation and prolonged tactical exercises, daily

during lulls of the fight and during the intervals in the exercises;

e. if the sniper rifle is not in use, at least once a week.

2.7.2. Lubricate the sniper rifle after cleaning. Apply lubricant only

to the well-cleaned and dry surfaces of the metal immediately after

cleaning to avoid the adverse effect of moisture on the metal.

2.7.3. For cleaning and lubricating the rifle following materials are

used:

• liquid rifle oil for cleaning the rifle and lubricating its

parts and mechanism, when the ambient temperature is within

+50 grad. C to -50 grad. C;

• rifle oil for lubricating the barrel bore, the rifle parts

and mechanisms after their cleaning, the said oil is used

when the ambient temperature exceeds +5 grad C;

• RCHS solution for scouring out the barrel bore and other

parts affected by the powder gases.

Note - The RCHS solution is prepared in a subunit. The composition of

the solution is as follows:

§ drinking water - 1 L;

§ ammonium carbonate - 200 g;

§ potassium bichromate - 3-5 g.

The RCHS solution is prepared in the amount required for scouring the

weapon in the course of 24 hours. Small amount of the RCHS solution

may be stored in tightly plugged glass vessels, away from heaters (in a

dark place) for not more than 7 days. It is prohibited to fill the

oilers with the Ð×Ñ solution.

• waste or special paper KB-22 for wiping, scouring and

lubricating the sniper rifle;

• tow free from boon only for scouring the barrel bore out.

2.7.4. To clean the sniper rifle, proceed as follows:

a. Prepare materials for cleaning and lubrication;

b. Disassemble the sniper rifle;

c. Prepare accessories for use during cleaning;

d. Scour out the barrel bore.

To scour out the barrel bore with liquid rifle oil put the tow on

the scourer end and place the tow fibers along the scourer rod; soak

the tow in liquid rifle oil. Insert the cleaning rod with the scourer

and the tow into the barrel bore and secure the container cover on the

flash eliminator. Holding the rifle with one hand smoothly move the