(2) If there is no 28VDC:
- replace the P/BSW-OXYGEN/CREW SUPPLY (2HT)
(a) If the fault continues:
- do a check of the wiring from the pushbutton switch (2HT) pin A/B3 to the first terminal block (Ref. ASM 35-13/01).
(1) Make sure that the REGUL LO PR indication goes out of view on the DOOR/OXY page.
1_ If there is no continuity:
- repair the above wiring.
2_ If there is continuity:
- do a check and repair the wiring from the pushbutton switch
(2HT) to the solenoid valve (3HT) pin A/B1, B2 to pin A/A,C
(Ref. ASM 35-13/01).
C. Test
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF. (Ref. AMM TASK 31-60-00-860-002)
(2) On the panel 21VU:
- release the OXYGEN/CREW SUPPLY pushbutton switch 2HT. (the OFF legend comes on)
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002)
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞35-10-00∞∞∞∞∞∞∞∞∞∞Page 240
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CES
TASK 35-10-00-810-822
No Oxygen to the Crew Oxygen Masks with REGUL LO PR Indication
1. Possible Causes
_______________
- SOL VALVE-LP OXY SPLY (3HT)
- P/BSW-OXYGEN/CREW SUPPLY (2HT)
- wiring from the LP oxygen supply solenoid valve (3HT) pin A/B to the ground terminal
- wiring from the LP oxygen supply solenoid valve (3HT) to the pushbutton switch (2HT)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 35-12-41-710-001 Operational Test of the Full Face/Quick Donning
Oxygen Masks (5757HM,5758HM,5759HM,5760HM) AMM 35-13-51-000-001 Removal of the Sol Valve-LP Oxy Sply (3HT) AMM 35-13-51-400-001 Installation of the LP Oxygen-Supply Solenoid-Valve
(3HT)
ASM 35-13/01
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the full-face/quick-donning oxygen masks (Ref. AMM TASK 35-12-41-710-001).
4. Fault Isolation
_______________
A. If during the operational test there is no oxygen at each mask with REGUL LO PR indication:
- make sure that there is 28VDC on the LP oxygen supply solenoid valve (3HT) pin A/A.
(1) If there is 28VDC:
- replace the SOL VALVE-LP OXY SPLY (3HT) (Ref. AMM TASK 35-13-51-000-001) and (Ref. AMM TASK 35-13-51-400-001).
(2) If there is no 28VDC:
- replace the P/BSW-OXYGEN/CREW SUPPLY (2HT) (Ref. ASM 35-13/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞35-10-00∞∞∞∞∞∞∞∞∞∞Page 241
May 01/05R CES
(3) If the fault continues:
- do a check for a ground signal at the pin A/B of the LP oxygen supply solenoid valve (3HT) (Ref. ASM 35-13/01).
(a) If there is no ground signal:
- repair the wiring from the LP oxygen supply solenoid valve (3HT) pin A/B to the ground terminal (Ref. ASM 35-13/01).
(b) If there is a ground signal:
- do a check and repair the wiring from the LP oxygen supply solenoid valve (3HT) to the pushbutton switch (2HT) pin A/A (Ref. ASM 35-13/01).
B. Test
(1) Do the test given in Para. 3.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞35-10-00∞∞∞∞∞∞∞∞∞∞Page 242
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CES
TASK 35-10-00-810-823
Deterioration of the Flexible Supply-Hose Assembly
1. Possible Causes
_______________
- STOWAGE BOX-OXY MASK, CAPT (10RN1)
- MASK-FULL FACE/Q.D. OXY, CAPT (5759HM) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 氧气 OXYGEN(22)
