(2)
Make sure that the thrust reverser doors are open (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 36-11-49-040-056
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 36-11-49-865-051
D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------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
4. Procedure
_________
(Ref. Fig. 401/TASK 36-11-49-991-300)
Subtask 36-11-49-420-050
A. Installation of the Pylon Interface Duct
(1)
Remove the blanking plugs from the pylon interface duct, the pylon duct (15), and the bleed pressure regulator valve (20).
(2)
Loosely install the pylon interface duct (15) between the pylon duct and the bleed pressure regulator valve (20).
(3)
Attach the interface duct (15) to the pylon duct with the coupling (5).
(4) Attach the pylon interface duct (15) to the bleed pressure regulator R valve (20) with a serviceable E-seal (10) and the coupling (25).
(5) Tighten the nuts of the couplings: CAUTION : MAKE SURE THE SMOOTH CIRCULAR SURFACE OF THE COUPLING IS
_______ RADIALLY OUTBOARD FROM THE ENGINE. DO NOT LET THE COUPLING TOUCH ENGINE COMPONENTS OR STRUCTURE. DAMAGE TO THE COMPONENTS OR STRUCTURE COULD OCCUR.
(a) Tighten the nuts of the couplings (5) and (25) sufficiently to hold the duct in position. Do not torque the coupling nuts at this time.
(6)
Make sure that the pylon interface duct (15) is in the correct position.
(7)
TORQUE the coupling nuts, as follows:
(a)
TORQUE the coupling nut to the value shown on the coupling.
(b)
Tap the perimeter of the coupling with a fiber hammer, then torque the coupling nut again.
(c)
Do the torque procedure two times, then torque the coupling nut again.
Subtask 36-11-49-720-055
B. Do this Test
(1)
Remove the warning notice from the HP ground connector.
(2)
Connect an air supply source 30 psi (2.07 bar) to the HP ground connector.
(3)
0n the panel 30VU, put the X-BLEED selector switch in the OPEN position.
(4)
Apply a stable pressure of 30 psi (2.07 bar) to the HP ground connector.
(5)
Make sure that there are no leaks at the junctions of the installed duct.
(6)
Disconnect the air supply source from the HP ground connector.
5. Close-up
________ Subtask 36-11-49-865-052
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2HA1, 3HA1, 2HA2, 3HA2
Subtask 36-11-49-410-050
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the thrust reverser cowl doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
(3) Remove the access platform(s). Subtask 36-11-49-440-059
C. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
Subtask 36-11-49-410-082
D. Close Access
(1)
Close the fan cowl doors (Ref. TASK 71-13-00-410-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2)
Remove the warning notice(s).
Subtask 36-11-49-862-055
E. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
TASK 36-11-49-000-043
Removal of the Mid Stage Tee Duct
WARNING : MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START
_______ WORK ON THE PNEUMATIC SYSTEM.
WARNING : BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER
_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.
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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