-replace the CROSSBLEED-VALVE SELECTOR SWITCH (3HV) on the panel 30VU.
1 If the fault continues:
_
-
do a check and repair the wiring between: the CROSSBLEED-VALVE SELECTOR SWITCH (3HV) connector A/10,12 and the VALVE-X BLEED (6HV) connector A/K,L (Ref. ASM 36-12/01),
-
do a check and repair the wiring between:
1
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the VALVE-X BLEED (6HV) A/M and ground (Ref. ASM 36-12/01).
2_ If the fault continues:
- do a check and repair the wiring between:
the CIRCUIT BREAKER (2HV) and the CROSSBLEED-VALVE SELECTOR
SWITCH (3HV) connector A/9 (Ref. ASM 36-12/01).
C. If only one BMC gives the maintenance message X-FEED VALVE 6HV OR CKT:
-replace the related BMC-1 (1HA1) or BMC-2 (1HA2) (Ref. AMM TASK 36-11-34-000-001) and (Ref. AMM TASK 36-11-34-400-001).
(1) If the fault continues:
-do a check and repair the wiring between: the related BMC connector AB/5A and the first terminal block (Ref. ASM 36-12/01).
D. Do the test as given in Para. 3. to make sure that the operation is correct (no maintenance message shown).
1
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Disagreement of the Position Switches of the Crossbleed Valve
1. Possible Causes
_______________
-VALVE-X BLEED (6HV)
-wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-11-00-740-001 BITE Test of the BMC 1(2)
AMM 36-11-34-000-001 Removal of the BMC (1HA1, 1HA2)
AMM 36-11-34-400-001 Installation of the BMC (1HA1, 1HA2)
AMM 36-12-52-000-002 Removal of the Crossbleed Valve Actuator
AMM 36-12-52-400-002 Installation of the Crossbleed Valve Actuator
R AMM 49-00-00-860-003 APU Start by External Power (GTCP 36-300)
R AMM 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300) AMM 49-00-00-860-005 APU Start by External Power (APS 3200) AMM 49-00-00-860-006 APU Shutdown by External Power (APS 3200) AMM 49-00-00-860-008 APU Start by External Power (131-9(A)) AMM 49-00-00-860-009 APU Shutdown by External Power (131-9(A)) ASM 36-12/01
3. Fault Confirmation
__________________
R **ON A/C 001-049, 101-105, 151-199, 201-210,
A. Test
(1)
Start the APU (Ref. AMM TASK 49-00-00-860-008).
(2)
Do the operational test of both BMCs (Ref. AMM TASK 36-11-00-740-001).
(3)
Stop the APU (Ref. AMM TASK 49-00-00-860-009).
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A. Test
(1)
Start the APU (Ref. AMM TASK 49-00-00-860-003).
(2)
Do the operational test of both BMCs (Ref. AMM TASK 36-11-00-740-001).
(3)
Stop the APU (Ref. AMM TASK 49-00-00-860-004).
R **ON A/C 106-149, 211-299, 301-399, 401-499,
A. Test
(1)
Start the APU (Ref. AMM TASK 49-00-00-860-005).
(2)
Do the operational test of both BMCs (Ref. AMM TASK 36-11-00-740-001).
(3)
Stop the APU (Ref. AMM TASK 49-00-00-860-006).
**ON A/C ALL
4. Fault Isolation
_______________
A. If both BMCs give the maintenance message X FEED-V 6HV OR CKT:
-replace the VALVE-X BLEED (6HV) (Ref. AMM TASK 36-12-52-000-002) and (Ref. AMM TASK 36-12-52-400-002).
(1)
If the fault continues:
-
do a check and repair the wiring between: the BMC-1, BMC-2 (1HA1/2) AB/1A,2A and the VALVE-X BLEED (6HV) A/F,D (Ref. ASM 36-12/01),
-
do a check and repair the wiring between: the VALVE-X BLEED (6HV) A/N and ground (Ref. ASM 36-12/01).
(2)
If the fault continues:
-
do a check and repair the wiring between: the BMC-1, BMC-2 (1HA1/2) connectors AB/3A,4A and the CROSSBLEED-VALVE SELECTOR SWITCH (3HV) connectors A/2,4 (Ref. ASM 36-12/01),
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本文链接地址：A320 Trouble Shooting Manual 排故手册 PNEUMATIC(109)
