(a)
For the left pylon : 473BL
(b)
For the right pylon : 483BL.
Forward Lower Fairing
Figure 401/TASK 54-56-00-991-001
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INTENTIONALLY BLANK
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Aft Lower Fairing.
Figure 402/TASK 54-56-00-991-002- 12 (SHEET 1)
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Aft Lower Fairing.
Figure 402/TASK 54-56-00-991-002- 22 (SHEET 2)
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Center Lower Fairing
Figure 403/TASK 54-56-00-991-003
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TASK 54-56-00-400-001
Installation of the Lower Fairing
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
78-30-00-081-041 Make the Thrust Reverser Serviceable after Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance 54-56-00-991-001 Fig. 401 54-56-00-991-002 Fig. 402 54-56-00-991-003 Fig. 403
3. Job Set-up
__________ Subtask 54-56-00-860-057
A. Aircraft Maintenance Configuration
(1)
Make sure that the access platform and the warning notices are in position
(2)
Make the thrust reverser unservicable (Ref. TASK 78-30-00-481-041)
4. Procedure
_________
Subtask 54-56-00-420-050
A. Installation of the Center Lower Fairing
(Ref. Fig. 403/TASK 54-56-00-991-003)
(1) Put the centering pins in position and install the center lower fairing (33):
(a)
For the left pylon: 473BL
(b)
For the right pylon: 483BL
(2)
Install the bolts (32), the nuts (31) and tighten them. Subtask 54-56-00-420-051
B. Installation of the Aft Lower Fairing
(Ref. Fig. 402/TASK 54-56-00-991-002)
(1) Put the centering pin in position in the rear face of the center fairing and install the aft lower fairing (21):.
(a) For the left pylon: 473CL
(b)
For the right pylon: 483CL Subtask 54-56-00-820-050
C. Adjustment of the Aft Lower Fairing
(1)
Measure the clearances J1 and J2:
(2)
Make sure that the clearance J1 is 3.1 +1 -1 mm (0.1220 +0.0393 -0.0393 in.) between the aft fairing and the primary structure and between RIB8 and RIB10.
(a)
Make sure that the variable clearance J2 is between 3.1 +1 -1 mm (0.1220 +0.0393 -0.0393 in.) and 8 +1 -1 mm (0.3149 +0.0393 -0.0393 in.) between :
-the aft fairing and the secondary structure
-between RIB10 and the aft end of the fairing
(b)
If the values of the clearances you measured are not correct you can:
-remove the screw (18), the washers (17) and adjust with the shims (19)
- or remove the nut (14) and the bolt (16) and adjust with the shims (15).
NOTE : Install the bolts (16) and the nuts (14) in the fitting
____ for all the adjustement procedures.
(c) Make sure that the thickness of the parts that the screws (11) tighten is be constant in all the adjustment procedures.
(3)
Install the screw supports (13) and the screws (11) with washers (12).
(4)
TORQUE the screws (11) to between 1.6 and 1.8 m.daN (11.79 and 13.27 lbf.ft).
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