(2)
AMM 27-51-02/501, Inboard Trailing Edge Flap
(3)
AMM 27-51-05/401, Inboard Trailing Edge Flap Carriage
(4)
AMM 27-51-12/401, Inboard Trailing Edge Aft Flap
(5)
AMM 27-51-12/501, Inboard Trailing Edge Aft Flap
(6)
AMM 27-51-13/401, Inboard Trailing Edge Aft Flap Linkage
E.
Access
(1)
Location Zones
143 MLG Wheel Well
211/212 Control Cabin
555/655 Inboard Flap
710 Nose Landing Gear and Doors
730/740 Main Landing Gear and Doors
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27-51-02
ALL ú ú 01 Page 419 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(2)
Access Panels
197EL Flap Track
197FL Flap Track
197GL Wing/Body Structure
197JL Wing/Body Structure
198ER Flap Track
198FR Flap Track
198GR Wing/Body Structure
198JR Wing/Body Structure
F.
Install the Inboard TE Flap (Fig. 401)
S 214-022
(1) Make sure the flap/slat primary (hydraulic) and alternate (electric) drives are off and the flap control lever is in the zero (FLAPS UP) detent.
NOTE: The inboard and outboard flaps on the wing where the
____ inboard flap is removed will be in the extended position. The flaps on that wing were extended manually for the inboard TE flap removal.
S 214-030
(2)
Make sure the flap carriages are installed on the inboard main flap (AMM 27-51-05/401).
S 214-031
(3)
Make sure the aft flap linkages are installed (AMM 27-51-13/401).
S 214-032
(4)
Make sure the aft flap is installed and adjusted (AMM 27-51-12/501).
S 494-033
(5)
Install rig pins TE2 and TE3 (Views A-A and B-B) to prevent movement of the aft flap of the inboard flap.
S 644-024
(6)
Apply BMS 3-24 grease along the roller surfaces of the flap tracks.
S 424-025
(7)
Do these steps to install the TE flap:
(a)
Install the sling for the inboard TE flap on the flap (Fig. 406).
(b)
If the airplane is equipped with slot seal doors (instead of brush seals) make sure these doors (in the wing-body fairing) open and close correctly as the flap moves.
(c)
Use a manual support to hold the inboard flap track, then lift the flap into position.
(d)
Put the carriages together on the flap tracks and roll the flap forward.
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27-51-02
ALL ú ú 01 Page 420 ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(e) Connect the inboard flap carriages to the ballscrew gimbals with fasteners (15 thru 20).
NOTE:____ A manual turn of the torque tubes connected to the transmission angle gearboxes can align the carriages with the gimbals.
(f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) Tighten the nuts (19 and 20) to 65-75 pound-inches (7.35-8.47 newton-meters) more than the run-on torque.Move manually the inboard TE flap forward on the tracks, and examine the track for the correct clearances (Fig. 402).Connect the aft link (42) to the aft support structure of the flap track with fasteners (52 thru 61).Tighten the nut (58) to 500-700 pound-inches (56.5-79.0 newton-meters).Connect the flap track to the aft link (42) with fasteners (44 thru 51) and an eye bolt (43).Tighten the nut (49) to 400-600 pound-inches (45.2-67.7 Nm).Install the floating link (65) with fasteners (66 thru 70).Install the carriage stops.Tighten the nut with your fingers on the carriage stop for the outboard flap track and install a cotter pin.Remove the sling from the flap.To retract the outboard TE flap, turn the torque tube at the inboard tee gearbox of the inboard flap manually, or with an air motor.
(q) Turn the torque tube until you get the dimension X at the inboard transmission that you measured and recorded before (View A, Fig. 407).
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