FX Bobcat mk2

DEAR ALL Need Help

i need some assistance about fx bobcat mk2 . i have a problem i just bought fx bobcat mk2 when i received the gun,gun was empty of air i just fill it to 210 bar and mount the scope on it when i load the magazine and try to fire it the gun was not firing my gun is not transring air to barrel what should i do dear please help me.
 
Is the air tube screwed all the way in-,loosen the little allen at the fore end that keeps the tube from spinning and gently,with the fill probe make sure the bottle /tube is seated CW.dont monkey paw it.Or loosen the other allen holding the action slightly and unscrew the tube completely and when you screw the tube back on you should hear it charge the guns air/reg chamber
 
First of all to make sure the regulator is not passing the air, press the hammer to the valve(this step is clearly shown in the video linked below) if the valve gets pressed and still no air comes out that means there is something wrong with the regulator, but if you cannot press the valve( means the valve is locked) and the hammer has less kinetic energy to open the valve. 
watch the two links below,

http://www.airgunnation.com/topic/fx-bobcat-cylinder-removal/ 

after cylinder removed, access the regulator as shown in the video, 

Note: If you dont know how a pcp airgun works, then i suggest dont do it by yourself. its too dangerous.