(a)
Make sure the flaps move smoothly when the aft roller support engages the geneva cam.
H.
Put the Airplane Back to Its Usual Condition
S 644-049
(1)
Do this task to lubricate the aft roller support: "Trailing Edge Flap System Lubrication" (AMM 12-21-20/301).
S 864-050
(2)
Do this task to depressurize hydraulic system No. 1: "Hydraulic System Depressurization" (AMM 29-11-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A
747-400 MAINTENANCE MANUAL
TASK 27-51-39-404-051
11. Aftflap Fitting Installation
____________________________
A. Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 3 | Fitting Assy - Actr (Aftflap | 27-51-39 | 04 | 130 | | | | Fitting) (Left System) (Track | | | | | | | No. 3) | | | | | | 3 | Fitting Assy - Actr (Aftflap | | 01 | 130 | | | | Fitting) (Left System) (Track | | | | | | | No. 4) | | | | | | 3 | Fitting Assy - Actr (Aftflap | | | 135 | | | | Fitting) (Right System) (Track | | | | | | | No. 5) | | | | | | 3 | Fitting Assy - Actr (Aftflap | | 04 | 135 | | | | Fitting) (Right System) (Track | | | | | | | No. 6) | | | | | | 80 | Bolt (Tracks No. 3 and 6) | | | 105 | | | | Bolt (Tracks No. 4 and 5) | | 01 | 105 | | | 81 | Washer (Tracks No. 3 and 6) | | 04 | 110 | | | | Washer (Tracks No. 4 and 5) | | 01 | 110 | | | 82 | Nut (Tracks No. 3 and 6) | | 04 | 115 | | | | Nut (Tracks No. 4 and 5) | | 01 | 115 | | | 83 | Bushing (Tracks No. 3 and 6) | | 04 | 145 | | | | Bushing (Tracks No. 4 and 5) | | 01 | 145 | | | 84 | Washer (Tracks No. 3 and 6) | | 04 | 125 | | | | Washer (Tracks No. 4 and 5) | | 01 | 125 | | | 85 | Bolt (Tracks No. 3 and 6) | | 04 | 120 | | | | Bolt (Tracks No. 4 and 5) | | 01 | 120 | 2......…........…...................................…..........….....….........1
B. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
C.
Access
(1)
Location Zone 563 Outboard Flap Track Fairing, Inboard Flap, Left (Track No. 3) 561 Inboard Flap Track Fairing, Inboard Flap, Left (Track No. 4) 661 Inboard Flap Track Fairing, Inboard Flap, Right (Track No. 5)
663 Outboard Flap Track Fairing, Inboard Flap, Right (Track No. 6)
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747-400 MAINTENANCE MANUAL
D. Install the Aftflap Fitting
S 864-052
(1)
Make sure that the aftflap is attached to the midflap.
S 424-126
(2)
Install the aftflap fitting (Detail G, Fig. 401):
(a)
Put the aftflap fitting (3) on the aftflap. 1) Install the bolts (85) and the washers (84): 2) Tighten the bolts to 65-70 pound-inches (7.3-7.9 N-m).
(b)
Put the bushing (83) in the aftflap fitting.
CAUTION: IF YOU CHANGED THE LENGTH OF THE ACTUATOR ROD, DO NOT
_______ CONNECT IT TO THE AFTFLAP FITTING UNTIL THE AFTFLAP DRIVE MECHANISM ADJUSTMENT. YOU WILL CAUSE DAMAGE TO THE AFTFLAP AND THE MIDFLAP.
(c) Put the actuator rod (2) in the aftflap fitting. 1) Attach the actuator rod with the bolt (80), washers (81) and nut (82): 2) Tighten the nut to 120 pound-inches (13.6 N-m). Then
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