Functional check of OPV of A320 Aircraft

Functional check of Over Pressure Valve of A320 Aircraft

OPV functional check:-

OPEN PANEL 413CT on Engine Pylon,

REMOVE THE BLANK of OPV BY CUTTING TH OkkE LOCK WIRE,

ATTACH THE N2 HOSE OF THE TEST KIT TO THE BLANK I iiN RHS OPV UNIT(AFT LOOKING FWD) ,
CHECK THAT INDICATOR IS AT "OPEN" m,y

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THROUGH THE N2 BOTTLE Ikv.NCREASE THE PR TO 95 PSI AND ENES RE THAT VALVE GOES SMMOTHLY TO "CLOSE" psn,

R thisEDUCE TH guy yn8gE PR TO 70 PSI AND CHECK THAT VALV. Uma t mi gy6E MOVES SMOOTHLY IN "OPEN" PSN.

After the check is performed, close the Engine cowl.

This is just a g4uide line to perform the job for ll details refer AMM TAS4K 4