R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 19-018 USA AMS 5687
LOCKWIRE 0.6 MM (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-33-21-618-001 Pre-conditioning with the APU 36-12-42-991-001 Fig. 401
3. Job Set-up
__________
Subtask 36-12-42-860-051
A. Aircraft Maintenance Configuration
(1) Make sure that the warning notices are in position:
-
in the cockpit on the Engine Control Panel 115VU to tell persons not to start the engine(s),
-
in the cockpit on the AIR COND Overhead Control Panel 30VU to tell persons not to push in the APU BLEED pushbutton switch,
- on the HP ground connector to tell persons not to pressurize the pneumatic system.
(2)
Make sure that the access platform is in position below the access door 312AR.
(3)
Make sure that the access door 312AR is open.
(4)
Make sure that the blanking caps are installed on the duct sections
(1) and (7).
(Ref. Fig. 401/TASK 36-12-42-991-001)
Subtask 36-12-42-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR BLEED/X FEED/VALVE/BAT 2HV D13 49VU AIR BLEED/ENG 1/CTL 3HA1 D12 49VU AIR BLEED/ENG 1/MONG 2HA1 D11 122VU AIR BLEED/ENG 2/CTL 3HA2 Z23 122VU AIR BLEED/ENG 2/MONG 2HA2 Z22 122VU AIR BLEED/X FEED VALVE/NORM 1HV Z20
4. Procedure
_________
(Ref. Fig. 401/TASK 36-12-42-991-001) Subtask 36-12-42-420-050
A. Installation of the Bellows (7265HM)
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking caps from the duct sections (1) and (7).
(4)
Put the bellows (5) with the clamps (4) and (6) in the installation position.
(5)
Tighten the screws of the clamps (4) and (6).
(6)
Install the clamp (3).
(7)
TORQUE the nut of the clamp (3) to between 0.4 and 0.5 m.daN (35.39 and 44.24 lbf.in).
(8)
TORQUE the screws of the clamps (4) and (6) to 0.2 m.daN (17.69 lbf.in).
(9)
Safety the screws of the clamps (4) and (6) with the lockwire MISCELLANEOUS (Material No. 19-018).
Subtask 36-12-42-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HV, 2HV, 2HA1, 2HA2, 3HA1, 3HA2
Subtask 36-12-42-790-050
C. Leak Test of the Pneumatic Connections
(1)
Do the ground air pre-conditioning with the APU (Ref. TASK 12-33-21-618-001).
(2)
Make sure that there are no leaks between the connections of the bellows (5) and the duct sections (1) and (7).
(3)
Install the sleeve (2), if removed.
5. Close-up
________ Subtask 36-12-42-860-052
A. Put the aircraft back to the serviceable condition.
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 312AR.
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
VALVE - APU BLEED CHECK (7260HM) - REMOVAL/INSTALLATION
_______________________________________________________ TASK 36-12-51-000-001 Removal of the Check Valve WARNING : MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START
_______ WORK ON THE PNEUMATIC SYSTEM.
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