S 714-035
(13)
Put the flap control lever in the 40-unit detent to extend the flaps.
S 224-036
(14)
Use a protractor to make sure the inboard flaps align.
(a)
Measure the lower surface of the midflap with the protractor to make sure the midflaps align in the limit of 1 degree.
(b)
If the angles are not in the limit, do this task: "Trailing Edge Flap Adjustment" (Ref 27-51-00/501).
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A 737-300/400/500MAINTENANCE MANUAL
S 824-037
(15)
Retract the flaps until the angular clearance between the upstop and the flap drive ballscrew is 170 to 190 degrees (1/2 turn |10 degrees).
S 864-038
(16)
Stop for 2 minutes, then do this task: "Depressurize Hydraulic System B" (Ref 27-51-00/201).
S 224-039
(17)
Make sure the wing panel and the lower surface of the midflap are aligned in the limits shown in Section C-C, Fig. 402.
(a)
If the midflap is not in the limits, adjust the tie-rod on the trailing edge panel.
S 224-040
(18)
Make sure the clearance between the seal support (on wing lower trailing edge panel) and the midflap is in the limits shown on Section C-C.
(a)
If the clearance is not in the tolerance, adjust the seal retainer.
NOTE: If the clearance has the sealant applied, remove the
____
sealant before the adjustment.
(b) Fill the clearance between the skin and the seal with the sealant. If the clearance has the sealant applied, remove the sealant before the adjustment.
S 824-076
(19)
AIRPLANES WITH THREE PUSHRODS; Adjust the exhaust gate rods (Fig. 405):
(a)
Remove the outboard panel from the lower surface of the midflap.
(b)
Install the rig pin in the FLAP-UP rig pin hole in the exhaust gate mechanism. 1) If you cannot install the rig pin, adjust the rod attached
to the foreflap:
a) Remove the rod that is attached to the foreflap and the
exhaust gate mechanism. b) Install the rig pin into the FLAP-UP rig pin hole. c) Adjust the length of the rod. d) Install the rod on the foreflap and the exhaust gate
mechanism.
e) Remove the rig pin.
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A 737-300/400/500MAINTENANCE MANUAL
(c) Make sure the trailing edge of the exhaust gate and the aftflap
align in the limits of 0.00 to 0.15 inch below the trailing
edge of the aftflap.
(d) If the exhaust gate and the trailing edge are not in the
tolerance, adjust the exhaust gate:
1) Hold the trailing edge of the exhaust gate.
2) Install the rig pin into the FLAP-UP rig pin hole.
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 824-071
(20)
AIRPLANES WITH TWO PUSHRODS; Adjust the exhaust gate rods (Fig. 405):
(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).
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