-do a check of the regulation by the bleed pressure-regulator valve.
(1) If the regulation by the bleed pressure-regulator valve is too low:
-do a check and clean the sense line which goes to the bleed transferred-pressure transducer (7HA1) (from the bleed pressure-regulator valve control-solenoid (10HA1) to the bleed pressure-regulator valve (4001HA).
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(a) If the sense line has no internal leaks:
-replace the VALVE-BLEED PRESS REG (4001HA) (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
(2) If the operation of the bleed pressure-regulator valve is
intermittent:
-replace the SOLENOID-BLEED PRESS REG V CTL, ENG 1 (10HA1) (Ref. AMM TASK 36-11-55-000-001) and (Ref. AMM TASK 36-11-55-400-001).
(a) If the fault continues:
-replace the sense line between the bleed pressure-regulator valve (4001HA) and the bleed pressure-regulator valve control-solenoid (10HA1) and/or between the bleed pressure-regulator valve control-solenoid (10HA1) and the bleed transferred-pressure transducer (7HA1).
B. Do the test given in para. 3.
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Loss of the Non Return Function and Temperature Limitation Function of the Bleed Pressure-Regulator Valve of the Engine 2
1. Possible Causes_______________
-VALVE-BLEED PRESS REG (4001HA)
-SOLENOID-BLEED PRESS REG V CTL, ENG 2 (10HA2)
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 36-11-52-000-040 Removal of the Bleed Pressure-Regulator Valve (4001HA)
AMM 36-11-52-400-040 Installation of the Bleed Pressure-Regulator Valve (4001HA)
AMM 36-11-52-720-001 Functional Test of the Opening of the Bleed Pressure Regulator Valve
AMM 36-11-55-000-001 Removal of the Bleed-Pressure-Regulator Valve Control-Solenoid (10HA1,10HA2)
AMM 36-11-55-400-001 Installation of the Bleed-Pressure-Regulator Valve Control-Solenoid (10HA1,10HA2)
3. Fault Confirmation__________________
A. Test
(1) Do the test of the bleed pressure-regulator valve (Ref. AMM TASK 36-11-52-720-001).
4. Fault Isolation_______________
A. If the fault symptom is identified by the maintenance message:
PRESS REG-V 4001HA2 OR SOL 10HA2 OR SENSE LINE:
-do a check of the regulation by the bleed pressure-regulator valve.
(1) If the regulation by the bleed pressure-regulator valve is too low:
-do a check and clean the sense line which goes to the bleed transferred-pressure transducer (7HA2) (from the bleed pressure-regulator valve control-solenoid (10HA2) to the bleed pressure-regulator valve (4001HA).
(a) If the sense line has no internal leaks:
-replace the VALVE-BLEED PRESS REG (4001HA) (Ref. AMM TASK 36-11-52-000-040) and (Ref. AMM TASK 36-11-52-400-040).
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(2) If the operation of the bleed pressure-regulator valve is
intermittent:
-replace the SOLENOID-BLEED PRESS REG V CTL, ENG 2 (10HA2) (Ref. AMM TASK 36-11-55-000-001) and (Ref. AMM TASK 36-11-55-400-001).
(a) If the fault continues:
-replace the sense line between the bleed pressure-regulator valve (4001HA) and the bleed pressure-regulator valve control-solenoid (10HA2) and/or between the bleed pressure-regulator valve control-solenoid (10HA2) and the bleed transferred-pressure transducer (7HA2).
B. Do the test given in para. 3.
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Loss of the Manual Electrical Closure of the Bleed Pressure-Regulator Valve of the Engine 1
1. Possible Causes_______________
-VALVE-BLEED PRESS REG (4001HA)
-BMC-1 (1HA1)
-SOLENOID-BLEED PRESS REG V CTL, ENG 1 (10HA1)
-wiring
-P/BSW-ENG 1 BLEED (4HA1)
2. Job Set-up Information______________________
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本文链接地址：A320 Trouble Shooting Manual 排故手册 PNEUMATIC(39)
