Beretta BU9 Nano Beretta BU Nano User Manual - Page 49
Maintenance
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MAINTENANCE The firearm should be cleaned as soon as possible after firing. Use only high-quality, commercially available firearm cleaning solvents, gun oil and cleaning equipment. Field strip the pistol as indicated in the "FIELD STRIPPING" section of this manual (pages 28-30). WARNING: Excess oil and grease obstructing the bore, even partially, is very dangerous when firing and may cause barrel rupture and serious injury to the shooter and bystanders. Never spray or apply oil to the cartridges. Use lubricants properly. You are responsible for the proper care and maintenance of your firearm. BARREL Apply gun oil to a bore-cleaning brush. Insert the brush into the barrel from the chamber end and scrub the chamber and bore thoroughly. Make sure you pass the bore brush all the way through the barrel before pulling back through. If necessary, first clean the bore with a gun solvent. Dry the chamber and bore by pushing a cotton patch through the chamber and bore with the brush or cleaning jag. Repeat with a new patch until it emerges clean. Clean the barrel locking lug with a cloth soaked in gun oil. Lightly oil the entire barrel prior to reassembly. CAUTION: Do not clean the barrel with the pistol assembled. NOTICE: Cleaning the barrel from the breech (chamber) end will avoid damaging the muzzle or bore. SLIDE Clean the slide with a cloth soaked in gun oil paying particular attention to the breech face, extractor, slide rails, locking shoulders. If necessary, use a NYLON cleaning brush. Dry slide surfaces with a clean cloth and lightly oil the slide. 49