(18)
Remove the surge/bleed duct (8049KM) (15).
(19)
Remove and discard the O-ring (20).
(20)
Put blanking plugs on the disconnected line ends.
(21)
Do an inspection of the component interface and/or the adjacent area.
Surge/Bleed Duct
Figure 401/TASK 49-51-42-991-001
CES
TASK 49-51-42-400-001 Installation of the Surge/Bleed Duct (8049KM) (GTCP 36-300) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 3.5 m (11 ft. 6 in.) No specific Torque Wrench : range 0.00 to 1.20 m.daN
(0.00 to 9.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire-corrosion resistant steel 0.8 mm
C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
7 O-ring 49-51-04 01 -040 11 gasket 49-51-04 01 -080 20 O-ring 49-51-04 01 -110
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 49-00-00-710-004 Operational Test of the APU (4005KM) (GTCP 36-300) 49-00-00-790-004 Air Leak Test with closed APU Doors 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access
3. Job Set-up
__________
Subtask 49-51-42-860-056
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(2)
On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.
(3)
Make sure that there is 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 49-51-42-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-51-42-010-061
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 and 316AR (Ref. TASK 52-41-00-010-001).
(3)
Make sure that the light SW 11LJ is set to the ON position.
4. Procedure
_________ Subtask 49-51-42-420-050
A. Installation of the Surge/Bleed Duct (8049KM) CAUTION : DO NOT TORQUE THE V-CLAMP(S) TO MORE THAN THE SPECIFIED VALUE.
_______
YOU CAN DAMAGE THE FLANGE SURFACES IF YOU DO.
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Remove the blanking plugs.
(3)
Install the O-ring (20) in the surge/bleed duct (8049KM) (15).
(4)
Hold the surge/bleed duct (8049KM) (15) in position and install the bolts (19). Do not fully tighten the bolts at this step of the procedure.
(5)
Attach the surge/bleed duct (8049KM) (15) to the surge control valve
(17) with the V-clamp (16). Do not fully tighten the V-clamp at this step of the procedure.
(6)
Attach the surge/bleed duct (8049KM) (15) to the bleed-load control valve (14) with the V-clamp (13). Do not fully tighten the V-clamp at this step of the procedure.
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