Beretta A400 XPLOR UNICO Beretta A400 Xplor User Manual - Page 29

Gas Cylinder, Piston, Magazine Tube, Exhaust Valve Assembly - problems

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! EN ! ! GAS CYLINDER, PISTON, MAGAZINE TUBE CAUTION: Use of Magnum and Super Magnum cartridges results in high combustion gas emissions. The particular composition of the powders of some Super Magnum ammunition can leave consistent deposits of combustion residue. The parts of the shotgun where this problem is most likely to arise are the gas cylinder, the piston and elastic piston seal and the magazine tube. • Spray the piston, elastic piston seal and magazine tube and clean with Beretta Gun Oil. • Ensure that the piston glides freely on the magazine tube. • To clean the walls of the gas cylinder, spray the walls with Beretta Gun Oil and clean thoroughly with a bronze brush. • After removing any combustion residue, clean the inside of the gas cylinder with a clean cloth. NOTICE: The components specified above must not be lubricated. EXHAUST VALVE ASSEMBLY NOTICE: NEVER DISASSEMBLE the exhaust valve assembly. If necessary, contact a competent gunsmith. 30

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30
EN
GAS CYLINDER, PISTON, MAGAZINE TUBE
CAUTION:
Use of Magnum and Super Magnum cartridges results in high
combustion gas emissions.
The particular composition of the powders of some Super Magnum ammunition
can leave consistent deposits of combustion residue. The parts of the shotgun
where this problem is most likely to arise are the gas cylinder, the piston and
elastic piston seal and the magazine tube.
• Spray the piston, elastic piston seal and magazine tube and clean with Beretta
Gun Oil.
• Ensure that the piston glides freely on the magazine tube.
• To clean the walls of the gas cylinder, spray the walls with Beretta Gun Oil and
clean thoroughly with a bronze brush.
• After removing any combustion residue, clean the inside of the gas cylinder
with a clean cloth.
NOTICE:
The components speci
fi
ed above must not be lubricated.
EXHAUST VALVE ASSEMBLY
NOTICE:
NEVER DISASSEMBLE the exhaust valve assembly. If necessary,
contact a competent gunsmith.
!
!
!