-
Make sure that the warning notice to tell persons not to operate the pneumatic system is in position.
(4)
On the ENG panel 115VU:
-Make sure that the warning notice to tell persons not to start the engine 1(2) is in position.
(5)
On the HP ground connector:
-Make sure that the warning notice to tell persons not to pressurize the pneumatic system is in position.
(6)
On the ENG section of the maintenance panel 50VU:
-
Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off,
-
Make sure that the warning notice to tell persons not to energize the FADEC 1(2) is in position.
(7)
Make sure that the access platform is in position below the engine.
Subtask 36-11-49-010-078
B. Get Access
(1)
Make sure that the fan cowl doors are open (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(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 36-11-49-040-064
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 36-11-49-865-063
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
_________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-218,
(Ref. Fig. 405/TASK 36-11-49-991-304)
R **ON A/C 106-149, 219-299, 301-399, 401-499,
(Ref. Fig. 405A/TASK 36-11-49-991-304-A)
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-218,
Subtask 36-11-49-420-054
A. Installation of the Upper High Pressure (HP) Duct
(1)
Remove the blanking plugs from the upper HP duct (35), the engine ports, and the HP tee duct.
(2)
Apply a layer of anti-seize compound (Material No. CP2101) to the bolts (10).
(3)
Loosely install the upper HP duct (35) with a serviceable E-seal (5) and the bolts (10).
(4)
Tighten the bolts (10) sufficiently to hold the upper duct (35) in position. Do not torque the bolts at this time.
(5)
Attach the upper HP duct (35) to the HP tee duct with a serviceable E-seal (40) and the coupling (45). Do not torque the coupling nut at this time.
(6)
Attach the upper HP duct (35) to the engine port with a serviceable E-seal (50) and the coupling (55). Do not torque the coupling nut at this time.
(7)
If removed, install the bushings (30) into the support flange of the upper HP duct (35).
(8)
If required, adjust the support links so they do not put a load on the upper HP duct (35).
(9)
TORQUE the nuts on the support links to between 54 and 60 lbf.in
(0.61 and 0.67 m.daN). Safety the nuts with lockwire 0.032 in. (0.8 mm) dia (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia (Material No. CP8002).
(10)
Connect the upper HP duct (35) to the support links with the bolts (15), the washers (20), and the nuts (25). Make sure that the washers are installed with the countersink against the boltheads.
(11)
Make sure that the upper HP duct (35) is in the correct position.
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 36-11-49Page 460 1201-218, 1May 01/05 1 1 1CES 1
(12)
TORQUE the bolts (10) to between 45 and 60 lbf.in (0.50 and 0.67 m.daN). Safety the bolts with lockwire 0.032 in. (0.8 mm) dia (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia (Material No. CP8002).
(13)
TORQUE the coupling nuts as follows: 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)
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.
(14)
Remove the protective covers from the boss in the upper HP duct (35) and from the hose.
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