-
do a check and repair the wiring between: the CROSSBLEED-VALVE SELECTOR SWITCH (3HV) connector A/1 and ground (Ref. ASM 36-12/01).

 1 -EFF : ALL

-∞∞36-12-00∞∞∞∞∞∞∞∞∞∞Page 216

 --Aug 01/05 ---CES - B. If only one BMC gives the maintenance message X FEED VALVE 6HV OR CKT:

 -replace the related BMC (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 connectors AB/1A,2A,3A,4A and the first terminal block (Ref. ASM 36-12/01).
 C. Do the test as given in Para. 3. to make sure that the operation is correct (no maintenance message shown).
 1 -EFF : ALL

-∞∞36-12-00∞∞∞∞∞∞∞∞∞∞Page 217
 --May 01/05 ---CES - Low Air Pressure in the Right Crossbleed Duct

 1. Possible Causes
_______________

 -VALVE-X BLEED (6HV)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 12-33-21-618-001 Pre-conditioning through the HP Ground Connection
 AMM 12-33-21-618-001 Pre-conditioning with the APU
 AMM 36-12-52-000-001 Removal of the Crossbleed Valve (6HV)
 AMM 36-12-52-400-001 Installation of the Crossbleed Valve (6HV)

 3. Fault Confirmation

__________________

 A. Do the pre-conditioning with the high-pressure ground connection (Ref. AMM TASK 12-33-21-618-001) or with the APU (Ref. AMM TASK 12-33-21-618-001).
 NOTE : Make sure that there are no maintenance messages related to the
____ pack 2 and/or the crossbleed system available before you do this test.
 4. Fault Isolation
_______________

 A. If the right pack does not operate during the pre-conditioning because of low pressure:
 -replace the VALVE-X BLEED (6HV) (Ref. AMM TASK 36-12-52-000-001) and (Ref. AMM TASK 36-12-52-400-001).
 B. Do the test as given in Para. 3. to make sure that the operation is
 correct (no maintenance message shown).

 1 -EFF : ALL

-∞∞36-12-00∞∞∞∞∞∞∞∞∞∞Page 218
 --May 01/05 ---CES - To Slow Operation of the Crossbleed Valve

 1. Possible Causes
_______________
 -
VALVE-X BLEED (6HV)

 -
VALVE-X BLEED ACTUATOR

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-12-00-710-001 Operational Test of the APU Bleed Air Supply and
 Crossbleed Systems AMM 36-12-52-000-001 Removal of the Crossbleed Valve (6HV) AMM 36-12-52-000-002 Removal of the Crossbleed Valve Actuator AMM 36-12-52-400-001 Installation of the Crossbleed Valve (6HV) AMM 36-12-52-400-002 Installation of the Crossbleed Valve Actuator
 3. Fault Confirmation
__________________
 A. Do the operational test of the APU bleed-air supply and the crossbleed systems (Ref. AMM TASK 36-12-00-710-001).
 4. Fault Isolation
_______________
 A. If after the test the message X-BLEED MAN CTL is shown on the status page of the lower ECAM display unit:
 -look at the visual position indicator of the crossbleed valve to make sure that the indicator shows fully closed position,
 -set the X-BLEED selector switch on AIR COND overhead panel 30VU to the OPEN position,
 -do a check of the operation time of the crossbleed valve from fully closed to fully open position .
 (1)
 If the operation time of the crossbleed valve is more than 10 s:

 -replace the VALVE-X BLEED ACTUATOR (Ref. AMM TASK 36-12-52-000-002) and (Ref. AMM TASK 36-12-52-400-002).

 (2)
 If the fault continues:

 -replace the VALVE-X BLEED (6HV) (Ref. AMM TASK 36-12-52-000-001) and (Ref. AMM TASK 36-12-52-400-001).
 B. Do the test given in Para. 3.
 1 -EFF : ALL

-∞∞36-12-00∞∞∞∞∞∞∞∞∞∞Page 219

 --May 01/05 ---CES -

 1 -EFF : ALL

-∞∞36-12-00∞∞∞∞∞∞∞∞∞∞Page 301
　
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