(2)
 Put the access platform in position in zone 450 for engine 1 and in zone 460 for engine 2.

 Subtask 36-11-49-040-061
 E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041). Subtask 36-11-49-010-096
 F. Open the thrust reverser cowl doors (Ref. TASK 78-36-00-010-040):
 FOR 1000EM1
 451AL, 452AR
 FOR 1000EM2
 461AL, 462AR

 4. Procedure
_________
 (Ref. Fig. 404/TASK 36-11-49-991-303) Subtask 36-11-49-020-053
 A. Removal of the Lower High Pressure (HP) Duct
 (1)
 Remove the coupling (10) and the E-seal (5) that connect the lower HP duct (15) to the HP tee duct.

 (2)
 Disconnect the muscle pressure tube from the lower HP duct (15).

 (3)
 Put protective covers on the muscle pressure tube and the fitting on the lower HP duct (15).

 (4)
 Remove the bolts (20) and the E-seals (25), at two places, that connect the lower HP duct (15) to the engine ports.

 (5)
 Remove the lower HP duct (15) from the engine.

 1EFF : ALL 1 36-11-49Page 438 1 1 Feb 01/01R 1 1 1CES 1

 High Pressure (HP) Ducts Figure 404/TASK 36-11-49-991-303
 1EFF : 1 1R 1CES  ALL  1 11 1 36-11-49 Page 439 Feb 01/01

 (6) Put blanking plugs on the engine ports, the HP tee duct, and the lower HP duct (15).
 1EFF : ALL 1 36-11-49Page 440 1 1 Feb 01/01R 1 1 1CES 1

 TASK 36-11-49-400-045
 Installation of the Lower High Pressure Duct
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific fiber hammer
 No specific warning notice

R  No specific FOIL-ALUMINUM (Local Purchase) No specific access platform 0.5 m (1 ft. 8 in.) No specific Torque Wrench : range 36.00 to 220.00 lbf.in
 (0.40 to 2.60 m.daN)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2101 * anti-seize compound (Ref. 70-30-00) Material No. CP3010 * developer, dry (Ref. 70-30-00) Material No. CP8001 * lockwire 0.032 in. (0.8 mm) dia (Ref. 70-30-00) Material No. CP8002 * lockwire 0.032 in. (0.8 mm) dia (Ref. 70-30-00) Material No. CP8004 * safetywire 0,024in. (0,6mm) (Ref. 70-30-00) R

 C. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
5 5 25  E-seal E-seal E-seals  36-11-49 01A-16036-11-49 01A-160A36-11-49 01A-040
 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R R  24-41-00-861-002 24-41-00-862-002 31-60-00-860-001 31-60-00-860-002 71-00-00-710-003 71-00-00-710-004 71-00-00-710-028 71-13-00-010-040 71-13-00-410-040 78-30-00-081-041 78-30-00-481-041 78-36-00-010-040 78-36-00-410-040 36-11-49-991-303  Energize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External Power EIS Start Procedure EIS Stop Procedure Engine Automatic Start Engine Manual Start Engine ShutdownOpening of the Fan Cowl DoorsClosing of the Fan Cowl DoorsMake the Thrust Reverser Serviceable after MaintenanceMake the Thrust Reverser Unserviceable for MaintenanceOpening of the Thrust Reverser DoorsClosing of the Thrust Reverser DoorsFig. 404
 3. Job Set-up__________
 Subtask 36-11-49-860-062
 A. Aircraft Maintenance Configuration
 (1) Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
 (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

 (3) On the AIR COND panel 30VU:
 -Make sure that the ENG 1(2) BLEED pushbutton switch is released
 (the OFF legend is on), R - Make sure that the APU BLEED pushbutton switch is released (the ON R legend is off),
 -Make sure that the warning notice to tell persons not to operate the pneumatic system is in position.
 (4)
 On the ENG panel 115VU:
　
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