B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-51-53-991-001-A Fig. 401 49-51-53-991-002 Fig. 402
3. Job Set-up
__________ Subtask 49-51-53-860-050
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-51-53-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR BLEED/X FEED/VALVE/BAT 2HV D13 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-51-53-010-050
C. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(3)
Set the LIGHT control switch 11LJ to the on position.
4. Procedure
_________ (Ref. Fig. 401/TASK 49-51-53-991-001-A, 402/TASK 49-51-53-991-002) Subtask 49-51-53-020-050-A
A. Removal of the Bleed Control Valve
CAUTION : YOU MUST USE TWO WRENCHES AND HOLD THE COMPONENT WHEN YOU
_______ REMOVE/INSTALL THE PIPE COUPLINGS AND/OR UNIONS. THIS PREVENTS DAMAGE TO THE COMPONENT.
CAUTION : PUT PLASTIC CAPS OR PLUGS ON ALL FUEL AND/OR LUBRICATION SYSTEM
_______ COMPONENTS AND LINES. IF YOU USE TAPE, CLOTH, OR METAL CAPS ON THEM, YOU CAN DAMAGE THE APU.
NOTE : With incorporation of VSB 4500001-49-89 the LCDT Sensor (P29) has
____
been replaced by filler plug P/N 4504985.
(1)
Disconnect the electrical connector P33 (5).
(2)
Put blanking caps on the disconnected electrical connectors.
(3)
Remove the bolt (7) and clamp (8) that attaches the cable harness to the bracket (27).
(4)
Remove the bolt (25) and the cushioned clamp (24) that attach the tube to the clamp bracket support assembly (26).
(5)
Disconnect the three clamps on tubes (12) and (13).
(6)
Loosen the six clamps on tubes (6), (20) and (14).
(7)
Put a container below the valve.
(8)
Disconnect both ends of the tubes (12), (13), and (6).
(9)
Disconnect the tubes (20), (14), (21) and (22) at the valve.
(10)
Remove the V-band clamp (15) from the outlet duct (16).
(11)
Remove the V-band clamp (18) from the ECS duct (17).
(12)
Remove the V-band clamp (9) from the exhaust duct.
(13)
Remove the bleed control valve from the APU.
(14)
Put blanking plugs on the disconnected line ends.
(15)
Put blanking plugs on the disconnected duct ends.
(16)
Remove the container.
Bleed Control Valve Figure 401/TASK 49-51-53-991-001-A
R EFF : 106-106, 108-149, 211-299, 301-399, 49-51-53 Page 404 Aug 01/05
CES
Bleed Control Valve Figure 402/TASK 49-51-53-991-002
R EFF : 106-106, 108-149, 211-299, 301-399, 49-51-53 Page 405 Aug 01/05
CES
TASK 49-51-53-400-001
Installation of the Bleed Control Valve (8051KM) (APS 3200)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
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