Yamaha K-31 Service Manual download pdf (Page 77)

126, 127

3. Cleaning and greasing the barrel

-Take care of the barrel of your rifle and avoid oxidation by proper cleaning and greasing.

-After each shooting session, immediately grease the barrel with the help of a cleaning rod and brush. (The

barrel should still be warm.)

-As soon as you return to base, clean the barrel by means of a cleaning cord. Pay attention to pull the wire

mesh through in the correct way. The wire mesh should be well greased.

Inspect for cleanliness and regrease the barrel.

-Steel wool, emery cloth, or acids are the worst enemy of the rifle bore.

-Avoid ovalizing the muzzle of your barrel. The cleaning cord should be pulled straight down the barrel

axis.

-To clean the barrel, use a good wire mesh that will create a slight resistance to pull inside the barrel. It is

only necessary to pass the cord 3 or 4 times through the barrel.

These are a barrel’s worst enemies

(emery, steel wool, acid)

Steel wool will scratch the inside of the barrel.

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Yamaha K-31 Service Manual Page 77