-close it.
 (a) If the circuit breaker (3HA1) trips:
 -do the procedure (Ref. TASK 24-00-00-810-803).

 (2)
 If the circuit breaker (3HA1) is closed:

 -do a check for 28VDC at the pin A/1 of the connector of the engine 1 bleed pressure regulator valve control solenoid (10HA1) with the ENG 1 BLEED pushbutton switch (4HA1) released (OFF legend on) (Ref. ASM 36-11/01).
 (a) If there is 28VDC:
 -do a check for a ground signal at the pin A/2 of the connector of the engine 1 bleed pressure regulator valve control solenoid (10HA1) (Ref. ASM 36-11/01).
 1 If there is no ground signal:
_
 -repair or replace the wiring as necessary.
 2 If there is a ground signal:
_
 -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).
 (b) If there is no 28VDC:
 -do a check for 28VDC at the pin A/D2 of the ENG 1 BLEED pushbutton switch (4HA1) (Ref. ASM 36-11/01).
 1 If there is 28VDC:
_
 -replace the P/BSW-ENG 1 BLEED (4HA1).
 a If the fault continues:
_
 -do a check and repair the wiring between the pin A/1 of the bleed pressure regulator valve control solenoid and the pin A/D3 of the ENG 1 BLEED pushbutton switch (Ref. ASM 36-11/01).
 2 If there is no 28VDC:
_
 -do a check and repair the wiring between the pin A/D2 of the ENG 1 BLEED pushbutton switch and the pin 2 of the circuit breaker 3HA1 (Ref. ASM 36-11/01).
 a If the fault continues:
_
 -replace the C/B-AIR BLEED/ENG 1/CTL (3HA1).
 1
 -EFF : ALL

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B225
 --Feb 01/05R ---CES -

 (3) If the fault continues:
 - on the rear circuit breaker panel 122VU, do a check of the status of the AIR BLEED/ENG 2/CTL circuit breaker (3HA2).
 (a) If the circuit breaker (3HA2) is open:
 -close it.
 1 If the circuit breaker (3HA2) trips:
_
 -do the procedure (Ref. TASK 24-00-00-810-803).
 (b) If the circuit breaker (3HA2) is closed:
 -do a check for 28VDC at the pin A/1 of the connector of the engine 2 bleed pressure regulator valve control solenoid (10HA2) with the ENG 2 BLEED pushbutton switch (4HA2) released (OFF legend on) (Ref. ASM 36-11/02).
 1 If there is 28VDC:
_
 -do a check for a ground signal at the pin A/2 of the connector of the engine 2 bleed pressure regulator valve control solenoid (10HA2) (Ref. ASM 36-11/02).
 a If there is no ground signal:
_
 -repair or replace the wiring as necessary.
 b If there is a ground signal:
_
 -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).
 2 If there is no 28VDC:
_
 -do a check for 28VDC at the pin A/D2 of the ENG 2 BLEED pushbutton switch (4HA2) (Ref. ASM 36-11/02).
 a If there is 28VDC:
_
 -replace the P/BSW-ENG 2 BLEED (4HA2).
 . If the fault continues:
 -do a check and repair the wiring between the pin A/1 of the bleed pressure regulator valve control solenoid and the pin A/D3 of the ENG 2 BLEED pushbutton switch (Ref. ASM 36-11/02).
 b If there is no 28VDC:
_
 -do a check and repair the wiring between the pin A/D2 of the ENG 2 BLEED pushbutton switch and the pin 2 of the circuit breaker 3HA2 (Ref. ASM 36-11/02).
 . If the fault continues:
 -replace the C/B-AIR BLEED/ENG 2/CTL (3HA2).
 C. After the subsequent flight, make sure that the fault does not continue.
 1
 -EFF : ALL

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B226
 --Feb 01/05R ---CES -

 Failure of the Overpressure Valve in Closed Position on the Engine 1
 1. Possible Causes
_______________
 -VALVE-OVERPRESSURE, ENG 1 (5HA1)
 -VALVE-HP BLEED (4000HA)
 -VALVE-BLEED PRESS REG (4001HA)
 -wiring
 -sense line
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-11-51-000-042 Removal of the High Pressure Bleed Valve (4000HA) AMM 36-11-51-400-042 Installation of the High Pressure Bleed Valve (4000HA) AMM 36-11-52-000-042 Removal of the Bleed Pressure Regulator Valve (4001HA) AMM 36-11-52-400-042 Installation of the Bleed Pressure Regulator Valve
　
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