User's Handbook
8
Once the desired pressure is reached close the main
valve on the filling bottle or stop pumping. Open the
bleed valve on the adaptor, this will vent the trapped air
in the hose and allow the cylinder to be unscrewed from
the adaptor. If you don’t vent the adaptor, air trapped in
the hoses makes removing the cylinder from the filling
kit very difficult and may cause damage to the adaptor
seals.
With the vent screw open unscrew the cylinder
from the filling adaptor.
Cock the action (this is to make sure the firing
valve is closed to stop air venting down the barrel) and
screw the cylinder back onto the rifle. The cylinder
should be hand tight.
DO NOT USE THE SPANNER TO TIGHTEN
THE CYLINDER ONTO THE RIFLE.
REMEMBER THE RIFLE IS NOW IN A COCKED STATE AND READY TO FIRE, IT
SHOULD NOW BE DE-COCKED OR FIRED OFF.
Note. The threads of the cylinder and cylinder extension, (where the cylinder screws into the
rifle) must be protected and kept free of grit or dust. A thin coating of grease, such as Napier VP90
gun grease, may be applied to reduce friction on the threads.
It is also recommend that the cylinder pressure be allowed to fall to 100bar-110bar before
removing to fill. Although this is not critical it will make the removal of the cylinder to refill easier.
Note on pumps.
If you are going to use a pump as your filling kit
you will also need the pump adaptor, Fig 15, available
from Air Arms. Order reference. Z2128-300.
Air Arms recommend that pump usage instructions
are closely followed so as not to damage the cylinder of
the rifle.
Also available for the HILLS pump is a drypac
filter kit which will remove most of the moisture in the
atmoshere.