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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
8. SERRATED PLATE
0.05 0.10 INCH 9. CLAMPING
1. DRIVE SCREW BOLTS
END FITTING 2. PRELOAD
PAD 10. PRELOAD
PAD
OUTBOARD DRIVE SCREW END
FITTING AND PRELOAD PAD
B
0.15
INCH
0.13
11. INBOARD DRIVE SCREW END FITTING
INBOARD DRIVE SCREW END
FITTING AND PRELOAD PAD
C
15. SHIMS
14. GIMBAL SHAFT 12. INBOARD MIDFLAP
RETAINING BOLT TORQUE SHAFT
13. GIMBAL SHAFT
INBD FWD
INBOARD GIMBAL SHAFT INSTALLATION D
Inboard Flap Drive Screw Preload Adjustment Figure 403 (Sheet 2)
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A
737-300/400/500MAINTENANCE MANUAL
S 714-031
(9)
Extend and retract the flaps.
(a)
Make sure the flaps move freely.
S 864-032
(10)
Do this task: "Depressurize Hydraulic System B" (Ref 27-51-00/201).
S 224-033
(11)
Make sure the flap aligns with the wing chord plane (WCP) (Fig. 402):
NOTE: Make sure the aftflap deadweight roller touches the track
____
when you measure the dimension.
(a) Install the inboard flap rigging beam on the black stripes at WBL 147.2 on the front and rear spar.
Inboard Drive Screw Rigging
Figure 404
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A
737-300/400/500
MAINTENANCE MANUAL
A
EXHAUST GATE
ACTUATION MECHANISM
MIDFLAP EXHAUST GATE A
EXHAUST GATE PUSHROD
FOREFLAP 0.08 |0.03
CAM
BOLT
SHEAR RIVET MIDSPAR CUTOUT
FOREFLAP PUSHROD
INBD
AIRPLANES WITH TWO PUSHRODS
A-A
BOLT
FLAP-UP RIG PIN HOLE
MIDFLAP
EXHAUST GATE ACTUATING
PUSHRODMECHANISM
BOLT PUSHROD SHEAR RIVET
FOREFLAP MIDFLAP
INBD
AIRPLANES WITH THREE PUSHRODS A-A
Exhaust Gate Actuation Mechanism Adjustment
Figure 405
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A 737-300/400/500MAINTENANCE MANUAL
(b) Make sure the trailing edge of the flap is not more than
+/- 0.25 inch from the WCP.
NOTE: Make sure the aftflap deadweight roller touches the____
track when you measure the dimension.
(c) Make sure the opposite flap aligns in the limits of 0.10 inch.
(d) If it is necessary, adjust the flap:
1) Remove the forward roller assemblies from the flap
carriage.
2) Loosen the nut on the roller assembly until you can turn
the eccentric bushing.
3) Turn the bushings until the flap aligns with the WCP.
NOTE: The trailing edge will move 0.10 inch for each notch____
that you turn the bushing. All bushings on the flap
must be in the same position.
4) Tighten the nuts on the bushings to 200-500 pound-inches.
5) Install the cotter pins.
(e) Install the carriage front rollers.
(f) Install the lockwire on the bolts.
(g) Examine the position of the flap trailing edge compared to the
WCP.
(h) Remove the inboard flap rigging beam.
S 864-034
(12)
Do this task: "Pressurize Hydraulic System B" (Ref 27-51-00/201).
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