- L LO LEVEL SENSOR 15QJ1
- R LO LEVEL SENSOR 16QJ2
- FLSCU1 7QJ
- FLSCU2 9QJ.
(b) If a message(s) listed (in the step before):
- is not shown, do step (3)
- is shown, trouble shoot the LRU(s) before you do step (3). Refer to the Fault Symptoms List/28-CFDS for the related Task number.
(3) Do the Functional BITE Test of the Intercell Transfer Valves (Ref. AMM TASK 28-15-00-740-002).
NOTE : The COMMAND FLSS BITE option does not test the intercell
____
transfer valves (ICTVs).
NOTE : The ICTVs are motor driven and the electrical power for these
____ circuits is supplied from 206PP, 28VDC, BUS 2 (Ref. ASM 28-15/02). The ICTVs will not operate on battery power.
(a) Examine the FLSS STATUS page. Look for the (right wing forward ICTV) message XFR VALVE 29QM/72QM/10QP.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 230
201-299, 401-499, Aug 01/05 CES
(b) If the message:
- is not shown, go to step (4)
- is shown, do Para. 4.A.
(4) AIRBUS recommends:
(a) If the two functional tests (in steps (2) and (3)) show NO FAULTS, the FLSCU-1 7QJ and the FLSCU-2 9QJ are not replaced.
(b) No more work steps are necessary.
4. Fault Isolation
_______________
A. Procedure
(1) Get access to the ACTUATOR-TRANSFER VALVE, R FWD SPAR (10QP) (Ref. AMM TASK 28-15-51-000-001).
(2) Disconnect the electrical connector 10QP-A from the ACTUATOR-TRANSFER VALVE, R FWD SPAR (10QP).
(3) With a multimeter check to see if 28VDC is available at pin B of the actuator electrical supply cable connector (Ref. ASM 28-15/02).
(4) If the 28VDC is available check/replace the ACTUATOR-TRANSFER VALVE,R FWD SPAR (10QP), (Ref. AMM TASK 28-15-51-000-001), and (Ref. AMM TASK 28-15-51-400-001).
(a) When the actuator is removed from the aircraft make sure that the transfer valve drive shaft and valve are free to rotate.
(b) Repair/replace any unserviceable items found in (a).
(5) If the 28VDC is not available at pin B of the actuator electrical supply cable connector 10QP-A.
(a) Check with a multimeter to make sure that 28VDC is available at:
- terminal A2, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP)
- terminal X1, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP).
(b) If the 28VDC is not available do a wiring check of the aircraft wiring (Ref. ASM 28-15/02) between the RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) terminals A2, X1, and the C/B-FUEL/XFR VALVE 2/WING/L (3QP).
(c) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 231
201-299, 401-499, Aug 01/05 CES
(d) Check with a multimeter to make sure that 28VDC is available at:
- terminal A2, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP)
- terminal X1, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP).
(e) If the 28VDC is not available do a wiring check of the aircraft wiring (Ref. ASM 28-15/02) between the RELAY-R WING TK LOW LEVEL CHANNEL A (8QP) terminals A2, X1, and the C/B-FUEL/XFR VALVE 2/WING/R (4QP).
(f) Repair all the unserviceable wiring and connectors.
(6) Do the test given in Para 3.B.
(7) If the fault continues, check/replace the RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) 103VU.
(8) Do the test given in Para 3.B.
(9) If the fault continues check/replace the RELAY-R WING TK LOW LEVEL CHANNEL A (8QP) 103VU.
(10) Do the test given in Para 3.B.
(11) If the fault continues check/replace the RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP) 103VU.
(12) Do the test given in Para 3.B.
(13) If the fault continues do a wiring check of the aircraft wiring (Ref. ASM 28-15/02) between:
- the pin B, ACTUATOR-TRANSFER VALVE, R FWD SPAR (10QP) and the terminal B1, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP)
- the terminal B2, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) and the terminal A1, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP)
- the terminal X2, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) and the terminal A, RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP) 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 FUEL 燃油1(33)
