(2)
Put blanking caps on the disconnected electrical connector and on the receptacle.
(3)
Loosen the nut (5) and remove the clamp (3).
(4)
Hold the crossbleed valve (2). Loosen the nut (6) and remove the clamp (7).
(5)
Remove the crossbleed valve (2).
(6)
Put blanking caps on the pneumatic duct flanges (4),(8).
R Crossbleed Valve 6HV Figure 401/TASK 36-12-52-991-001
1EFF : 1 1 1CES ALL 1 111 36-12-52 Page 403 Nov 01/03
TASK 36-12-52-400-001
Installation of the Crossbleed Valve (6HV)
WARNING : MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START
_______
WORK ON THE PNEUMATIC SYSTEM.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notices
No specific access platform 2.5 m (8 ft. 2 in.)
R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
36-12-00-710-001 Operational Test of the APU Bleed Air Supply and Crossbleed Systems 36-12-52-991-001 Fig. 401
3. Job Set-up
__________
Subtask 36-12-52-860-052
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 panel 192FB.
(3) Make sure that the access panel 192FB is open.
Subtask 36-12-52-865-051
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 R 122VU AIR BLEED/X FEED VALVE/NORM 1HV Z20
4. Procedure
_________
(Ref. Fig. 401/TASK 36-12-52-991-001)
Subtask 36-12-52-420-050
A. Installation of the Crossbleed Valve
(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 pneumatic duct flanges (4),(8).
(4)
Check the pneumatic duct flanges (4),(8) for correct condition.
(5)
Install the crossbleed valve (2) between the pneumatic duct flanges
(4) and (8) with the actuator motors to the A/C centerline.
(6)
Install the clamp (7). Do not tighten it at this step.
(7)
Install the clamp (3). Do not tighten it at this step.
(8)
Tighten the nuts (5),(6) to between 0.56 and 0.78 m.daN (49.55 and
69.02 lbf.in) and TORQUE
(9)
Remove the blanking caps from the electrical connector (1) and from the receptacle.
(10) Make sure that the electrical connectors are clean and in the correct condition.
(11) Connect the electrical connector (1) to the crossbleed valve (2). Subtask 36-12-52-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HV, 2HV, 2HA1, 2HA2, 3HA1, 3HA2
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