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f) Set cabin oxygen control lever to "ON". g) Apply leakage detector (TB 05-926) on the repaired part and look for bubbles. 8) Purge oxygen system - see Page 301. 9) Make sure cabin oxygen control lever is set to "OFF". 10) Make sure all the tools and materials are removed and the work area is clean and free from debris. 11) Install removed access doors, cowlings and upholstery panels. 12) Close access door 219. 2. OPERATIONAL TEST OF THE OXYGEN SYSTEM A. Tools and consumable materials - Cleaning agent (TB 11-001) - Cleaning agent (TB 11-920) B. Procedure 1) Apply the oxygen system servicing procedure - see Page 301. 2) If necessary, charge the oxygen cylinder - refer to 12-16-00. 3) Set cabin oxygen control lever to "ON". With regulated flow front seat masks 4) Connect a front seat oxygen mask to an oxygen connecting plug. 5) Make sure control knob is set to "NORMAL". 6) Install the mask on your face and breathe in "NORMAL" and "100 %", check flow indication for operation. NOTE : When pressure is normal, a green range appears and when pressure is low, a red range appears. 7) Test the radio - refer to 23-10-00. 8) Set the control knob to "NORMAL". 9) Disconnect the front seat oxygen mask. 10) Repeat operations 4) to 9) for the other front oxygen mask. With constant flow front seat masks 4) Connect a front seat oxygen mask to an oxygen connecting plug. 5) Make sure oxygen flow is constant and check flow indicator for operation. NOTE : When pressure is normal, a green range appears and when pressure is low, a red range appears. 6) Test the radio - refer to 23-10-00. 7) Disconnect the front seat oxygen mask. 8) Repeat operations 4) to 7) for the other front oxygen mask. ABAB Validity : With "PURITAN-BENNETT" oxygen system Page 502 35 00 00 _ (CA) JUN 04 11) Connect passenger oxygen masks to oxygen connecting plugs. 12) On each mask, make sure oxygen flow is constant and check flow indicator for operation. NOTE : When pressure is normal, a green range appears and when pressure is low, a red range appears. 13) Set the cabin oxygen control to "OFF". 14) Clean and disinfect the front seat and passengers masks with cleaning agents (TB 11-001) and (TB 11-920), dry and stow them into front and rear headrests. 15) Make sure all the tools and materials are removed and the work area is clean and free from debris. 16) If necessary, recharge the oxygen cylinder - refer to 12-16-00. ABAB Validity : With "PURITAN-BENNETT" oxygen system 35-00 Page 503 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 35 氧气 TB20飞机维护手册(14) |
