B. Safety Precautions
 (1) Make sure that the engine 1(2) is shut down for at least 5 minutes.
 (2) On the AIR COND panel 30VU: - make sure that the ENG 1(2) BLEED pushbutton switch is released (OFF legend is on), - make sure that the APU BLEED pushbutton switch is released (ON legend is off), - put a warning notice to tell persons not to operate the pneumatic system.
 (3) On the ENG panel 115VU: - put a warning notice to tell the persons not to start the engine 1(2).
 (4) On the HP ground connector: - put a warning notice to tell persons not to pressurize the pneumatic system.
 (5) On the MAINTENANCE panel 50VU: - make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off, - put a warning notice to tell persons not to energize the FADEC 1(2).
 Subtask 36-11-51-865-064
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged 
R R R R R R R  WARNING : OPEN CIRCUIT BREAKERS 1JH, 2JH1, 2JH2, 3JH1 AND 3JH2 (ENGINE 1_______ AND 2 IGNITION SYSTEMS). THEN OPEN CIRCUIT BREAKERS 2KS1 AND 2KS2 (FADEC A AND EIU 1 AND 2) AND 4KS1 (FADEC B AND EIU 1). IF YOU DO NOT OBEY THIS SEQUENCE, THE ENGINE AUTOMATIC IGNITION- SYSTEM WILL OPERATE. THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL.
 CAUTION : YOU MUST OPEN THE CIRCUIT BREAKERS FOR THE PITOT PROBE BEFORE_______ THE CIRCUIT BREAKERS FOR THE ENGINE INTERFACE UNIT (EIU). IF YOU DO NOT, YOU CAN CAUSE DAMAGE TO THE PITOT PROBES.

 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
R
R
R

49VU ENGINE/1 AND 2/IGN/SYS A 49VU AIR BLEED/ENG 1/CTL 49VU AIR BLEED/ENG 1/MONG 49VU ANTI ICE/PROBES/PITOT/1 122VU ANTI ICE/PROBES/2/PITOT 122VU AIR BLEED/ENG 2/CTL 122VU AIR BLEED/ENG 2/MONG 122VU ANTI ICE/PROBES/3/PITOT FOR 1000EM1 49VU ENGINE/1/FADEC A/AND EIU 1 121VU ENGINE/IGN/ENG1/SYS B 121VU ENGINE/IGN/ENG1/SYS A BAT 121VU ENGINE/ENG1/FADEC B/AND EIU 1 FOR 1000EM2 49VU ENGINE/2/FADEC A/AND EIU 2 121VU ENGINE/IGN/ENG2/SYS B 121VU ENGINE/IGN/ENG2/SYS A BAT 121VU ENGINE/ENG2/FADEC B  1JH 3HA1 2HA1 3DA1 3DA2 3HA2 2HA2 3DA3 2KS1 3JH1 2JH1 4KS1 2KS2 3JH2 2JH2 4KS2  A03D12D11D02Y14Z23Z22Z16A04P41P39R41A05P42P40Q40
 Subtask 36-11-51-010-051
 D. Get Access
 (1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
 (2) Put the access platform in position below the engine.
 Subtask 36-11-51-040-053

 E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 36-11-51-010-052
F. Open the left thrust reverser door (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL FOR 1000EM2 461AL

 4. Procedure
_________
 (Ref. Fig. 401/TASK 36-11-51-991-300) Subtask 36-11-51-020-052
 A. Removal of the High Pressure (HP) Bleed Valve
 (1)
 Disconnect the electrical connectors (4000HA-A) from the HP bleed valve (25).

 (2)
 Disconnect the HP sense tube from the HP bleed valve (25).

 (3)
 Remove the coupling (15) and the E-seal (20) that attach the HP bleed valve (25) to the mid stage tee duct (5).

 (4)
 Remove the coupling (15) and the seal (20) that attach the HP bleed valve (25) to the HP tee duct (10).

 (5)
 Put blanking plugs on the disconnected line ends.

 (6)
 Put blanking caps on the disconnected electrical connectors.

 (7)
 Remove the HP bleed valve (25) from the engine.

 1EFF : ALL 1 36-11-51Page 404 1 1 Nov 01/02R 1 1 1CES 1

 High Pressure Bleed Valve
 Figure 401/TASK 36-11-51-991-300
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1  1  Feb 01/98
 1  1
 1CES  1

 TASK 36-11-51-400-042
 Installation of the High Pressure Bleed Valve (4000HA)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific clean cloth
 No specific fiber hammer
 No specific warning notice
 No specific FOIL-ALUMINUM (Local Purchase)
 No specific access platform 0.5 m (1 ft. 8 in.)
 No specific Torque Wrench : range 0.20 to 3.60 m.daN

 (2.00 to 26.00 lbf.ft)
　
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