User's Handbook

FILLING INSTRUCTIONS

NOTE ! ONLY USE CLEAN, DRY AND FILTERED COMPRESSED AIR, PREFERABLY

FROM A DIVING SHOP. OVER PRESSURIZATION MAY DAMAGE THE CYLINDER

BEYOND REPAIR.

The recommended filling pressure of the FTP-900 is 20Mpa (2900 psi) this will return the

best performance. It is acceptable to increase this to 22Mpa (3190 psi) for general practise, the

overall shot to shot spread on the charge will rise slightly but you will benefit from extra shots.

The FTP-900 is filled using a probe fitted to an air supply. The probe is inserted into the

filling hole located under the dust cover on the end of the cylinder. The dust cover is opened by

unscrewing in an anticlockwise direction Note: the cover does not screw off completely. Once the

probe is fully inserted check to make sure the bleed valve on your filling kit is closed, and slowly

open the main valve on you bottle or start pumping if you are using a purpose made air pump.

The air will now transfer from the filling kit to the rifle, the valve in the end of the cylinder

will open and close automatically.

Once the desired filling pressure is reached (always use the gauge on the kit and not the rifle)

stop the air supply by closing the main valve or stop pumping and slowly open the bleed valve on

the kit. The valve in the rifle will close automatically and the hose will vent. You can now remove

the probe from the rifle and close the dust cover. DO NOT TRY AND REMOVE THE PROBE

BEFORE THE HOSE IS VENTED.

The rifle is now ready to shoot.

The FTP-900 is fitted with a pressure indicator mounted on the front end of the rifle. This provides

the user with a visual check on the amount of air remaining in the cylinder this indicator should not

be used during the filling process as the needle reaction speed has been slowed to prevent damage

whilst filling. After filling the needle can take several seconds to synchronize with the air in the

cylinder. Although every gun is slightly different the recommended refill pressure for the FTP-900

is between 10MPa (1450psi) and 11MPa (1595psi).