(9) Open the AFT cargo compartment door 825 (Ref. TASK 52-30-00-860-001) and the access door 312AR.
(10) In the AFT cargo compartment, remove the sidewall panels 151CW, 151DW, 151EW, 151HW, 151JW, 161AW, 161BW and 161CW.
Subtask 36-11-00-860-058
E. Aircraft Maintenance Configuration
(1)
Do the EIS start procedure (ECAM system only) (Ref. TASK 31-60-00-860-001).
(2)
In the air conditioning compartment:
-disconnect the pressurization interconnection line of the water tank, hydraulic reservoir and trim air valve from the pressure service check valves (7272HM and 7270HM).
(3)
Cap the disconnected ends with end fittings.
(4)
On the bleed pressure-regulator valve 4001HA:
-remove the cap from the test port,
-connect the air supply source to the test port,
-increase the pressure to 40 psi (2.7579 bar) and stabilize it at this value: this is to open the bleed pressure-regulator valve.
-make sure the valve is open: look at the manual position indicator.
(5)
On the control solenoid 10HA1 (10HA2) of the bleed pressure-regulator valve:
-disconnect the electrical connector (Ref. TASK 36-11-55-000-001).
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(6)
On the ECAM control panel 11VU:
-push the BLEED pushbutton switch (the BLEED page comes into view on the lower ECAM display unit).
(7)
On the AIR COND panel 30VU, make sure that:
-
the PACK1 and PACK2 pushbutton switches are released (the OFF legends are on),
-
the X BLEED selector switch is set to AUTO (the BLEED page shows that the X BLEED valve is closed),
-
the APU BLEED pushbutton switch is released (the ON legend is off) (the BLEED page shows that the APU BLEED valve is closed).
(8)
On the ANTI-ICE section of the panel 25VU:
-make sure that the ANTI-ICE/WING pushbutton switch is released (the ON legend is off).
4. Procedure
_________
(Ref. Fig. 502/TASK 36-11-00-991-002)
Subtask 36-11-00-720-053
A. Functional Test of the Engine Bleed-Air-Supply System
(1)
Start the APU:
-GTCP 36-300 (Ref. TASK 49-00-00-860-003)
or
-APS 3200 (Ref. TASK 49-00-00-860-005)
or
-131-9(A) (Ref. TASK 49-00-00-860-008).
(2)
On the AIR COND panel 30VU, push the APU BLEED pushbutton switch (the ON legend is on) to pressurize the bleed duct system. The BLEED page shows that:
-
the X BLEED valve is open,
-
the APU bleed valve is open.
(3)
On the ECAM control panel:
-push the APU pushbutton switch (the APU page comes into view on the lower ECAM display unit and shows the APU BLEED pressure).
(4)
On the engines, in the pylons, the wings, the belly fairing and the Aft Cargo Compartment feel by hand or listen for leaks from:
-all the air ducts, the sense lines and specially the clamps, the unions and flexible joints.
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5. Close-up
________
Subtask 36-11-00-860-059
A. Put the aircraft back to its initial configuration.
(1)
On the AIR COND panel 30VU, release the APU BLEED pushbutton switch (the ON legend is off)
(2)
Stop the APU:
-GTCP 36-300 (Ref. TASK 49-00-00-860-004)
or
-APS 3200 (Ref. TASK 49-00-00-860-006)
or
-131-9(A) (Ref. TASK 49-00-00-860-009).
(3)
On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(4)
On the control solenoid 10HA1 (10HA2) of the bleed pressure-regulator valve:
-connect the electrical connector (Ref. TASK 36-11-55-400-001).
(5)
On the bleed pressure-regulator valve 4001HA:
-stop the pressurization of the valve with the air supply,
-make sure that the valve closes: look at the manual position indicator,
-disconnect the air supply source,
-install the cap on the test port.
(6)
In the air conditionning compartment:
-remove the end fittings.
(7)
Connect the pressurization interconnection lines of the water tank, hyd reservoir and trim air valve to the pressure service check valves (7272HM and 7270HM).
(8)
Make sure that the work area is clean and clear of tool(s) and other items.
