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737-300/400/500MAINTENANCE MANUAL
3) Remove the rod from the exhaust gate and the exhaust gate mechanism. 4) Adjust the length of the rod.
NOTE: One half turn of the end fitting will move the aft
____ edge of the exhaust gate approximately 0.112 inch.
5) Install the rod on the exhaust gate and the exhaust gate mechanism. a) Tighten the nuts on the rod to 30-40 pound-inches.
(e)
Remove the rig pin.
(f)
Install the outboard panel on the lower surface of the midflap.
(g)
Remove the support from the trailing edge of the exhaust gate.
S 824-045
(5)
AIRPLANES WITH TWO PUSHRODS; Adjust the exhaust gate rods (Fig. 402):
(a)
Remove the outboard panel from the lower surface of the midflap.
(b)
Make sure the foreflap pushrod is attached to the foreflap.
(c)
Make sure the angular clearance between the upstop and the flap drive ball screw is 170-190 degrees (1/2 turn +/-10 degrees).
(d)
Adjust the foreflap rod to get the 0.08 +/-0.03 inch clearance between the cam and the midspar cutout (Section A-A, Fig. 402).
(e)
Make sure the clearance between the exhaust gate actuation mechanism and the structure is a minimum of 0.10 inch, except at the midspar cutout.
(f)
Make sure the lower surface of the midflap and the exhaust gate align in the limit of +0.00 to -0.15 inch.
NOTE: Make sure the trailing edge of the exhaust gate is below
____
the aftflap.
(g) If the exhaust gate and the midflap are not in the tolerance, adjust the exhaust gate pushrod: 1) Install a support to hold the exhaust gate in its position. 2) Remove the rod from the exhaust gate and the exhaust gate
actuation mechanism.
3) Adjust the length of the pushrod.
NOTE: One half turn of the end fitting will move the
____ trailing edge of the exhaust gate approximately
0.127 inch.
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A 737-300/400/500MAINTENANCE MANUAL
(h) 4) Install the pushrod on the exhaust gate and the actuation mechanism. a) Tighten the nuts to 100-120 pound-inches. 5) Remove the support from the exhaust gate.Install the outboard panel from the lower surface of the midflap.
(6) S 864-047Do this task: Pressurize Hydraulic System B (AMM 27-51-00/201).
(7) S 864-057Put the flap control lever in the 40-unit detent to extend the flaps. (a) Make sure the flaps move correctly.
(8) S 864-048Put the flap control lever in the UP detent to retract the flaps. (a) Make sure the flaps move freely.
(9) S 864-070Do this task: Depressurize Hydraulic System B (AMM 27-51-00/201).
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A
737-300/400/500MAINTENANCE MANUAL
INBOARD FOREFLAP - REMOVAL/INSTALLATION
_______________________________________
1. General_______
A. There are two tasks in this procedure. There is a task for the removal and a task for the installation of an inboard foreflap.
B. You can remove the foreflap with the flaps extended to the 15 unit position. You can also remove the foreflap from the flap assembly after you remove the flap assembly from the airplane.
C. To remove the foreflap, you must disconnect the foreflap tracks from the foreflap or, you must remove the foreflap track stops. You must remove the panels from the lower surface of the midflap to remove the foreflap track stops. This procedure only includes steps to remove the foreflap tracks from the foreflap.
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