3. Job Set-up
__________
Subtask 36-11-58-860-050
A. Aircraft Maintenance Configuration
(1)
Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(2)
Make sure that the engine 1(2) shutdown occured not less than 5 minutes before you do this procedure.
(3)
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),
-
make sure that the warning notice to tell persons not to operate the pneumatic system, is in position.
(4)
On the center pedestal, on the ENG panel 115VU:
-make sure that the warning notice to tell the persons not to start the engine 1(2), is in position.
(5)
On the HP ground connector:
-make sure that the warning notice to tell persons not to pressurize the pneumatic system, is in position.
(6)
On the maintenance panel 50VU:
-
make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off,
-
make sure that the warning notice to tell persons not to energize the FADEC 1(2), is in position.
(7)
Make sure that the access platform is in position below the engine.
Subtask 36-11-58-010-051
B. Make sure that these access doors are open:
FOR 11HA1
415AL, 415AR
FOR 11HA2
425AL, 425AR
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Subtask 36-11-58-865-051
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 11HA1
49VU AIR BLEED/ENG 1/CTL 3HA1 D12
49VU AIR BLEED/ENG 1/MONG 2HA1 D11
FOR 11HA2 122VU AIR BLEED/ENG 2/CTL 3HA2 Z23 122VU AIR BLEED/ENG 2/MONG 2HA2 Z22
4. Procedure
_________
(Ref. Fig. 401/TASK 36-11-58-991-001) Subtask 36-11-58-420-050
A. Installation of the HP Bleed Override Solenoid
(1)
Install a new seal (5) to the HP bleed override solenoid (4).
(2)
Install the HP bleed override solenoid (4) on the support (6).
(3)
Install the three screws (2) and the three washers (1) on the HP bleed override solenoid (4).
(4)
Remove the blanking caps from the electrical connectors.
(5)
Make sure that the electrical connectors are clean and in the correct condition.
(6)
Connect the electrical connector (3) to the HP bleed override solenoid (4).
(7)
Remove the blanking plugs from the disconnected line ends.
(8)
Connect the sense line (7) to the HP bleed override solenoid (4) and TORQUE the nut to 141.6 lbf.in (1.60 m.daN).
Subtask 36-11-58-720-050
B. Do the opening test of the HP bleed valve from the functional test of the HP bleed valve (Ref. TASK 36-11-51-720-001).
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5. Close-up
________
Subtask 36-11-58-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close these access doors :
FOR 11HA1
415AL, 415AR
FOR 11HA2
425AL, 425AR
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
Subtask 36-11-58-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): FOR 11HA1 2HA1, 3HA1 FOR 11HA2 2HA2, 3HA2
Subtask 36-11-58-862-050
C. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
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