between the support track and the structure.
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747-400 MAINTENANCE MANUAL
H. Do a check on and adjust miscellaneous items.
S 864-033
(1)
Pressurize hydraulic system No. 4 (AMM 29-11-00/201).
S 864-034
(2)
Put the flap control lever in the UP detent to retract flaps.
S 864-035
(3)
Release the pressure in hydraulic system No. 4 (AMM 29-11-00/201).
S 224-036
(4)
Make sure that the roller overhang is in the limits of Detail D, Fig. 401.
S 224-037
(5)
Make sure that the clearance between the inboard end of the midflap and the midflap support track is in the limits of Detail E, Fig. 401.
S 224-038
(6)
Make sure that the clearance between the foreflap trailing edge and the midflap is 0.00 to 0.15 inch (0.00 to 0.38 cm).
NOTE: The clearance between the foreflap and midflap is not
____ adjustable. If the clearance is not in the tolerance, there are defective components. Replace the defective components.
S 644-054
(7)
Lubricate the foreflap (AMM 12-21-20/301).
(8)
Pressurize hydraulic system No. 4 (AMM 29-11-00/201).
S 714-040
(9)
Extend and retract the flaps. Make sure the flaps move smoothly.
I.
Put the Airplane Back to its Usual Condition.
S 864-039
S 094-041
(1) Remove the spoiler actuator locking tools or open the flight control shutoff valves for hydraulic systems No. 2 and 3.
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(2) S 864-042Pressurize hydraulic systems No. 2 and No. 3 (AMM 29-11-00/201).
(3) S 864-043Put the speed brake control lever in the DOWN detent to lower the spoilers.
(4) S 864-044Release the pressure in hydraulic systems No. 2, No. 3 and No. 4 (AMM 29-11-00/201).
(5) S 864-046Remove electrical power (AMM 24-22-00/201).
(6) S 864-045Remove the DO-NOT-CLOSE tags and close these circuit breakers: (a) P7, Overhead Circuit Breaker Panel 1) 7G6, SPEED BRAKE AUTO CONT
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OUTBOARD FOREFLAP - INSPECTION/CHECK
____________________________________
1. General_______
A. This procedure has one task, which is an inspection/check of the outboard foreflap. The task has these parts:
(1)
An inspection/check of the joints that connect the foreflap fitting to the sequence carriage
(2)
An inspection/check of the joints that connect the foreflap lever to the midflap track
B.
In this procedure you measure the inner and outer diameter of the bearings and bolts which attach the outboard foreflap fitting to the sequence carriage. You also measure the inner and outer diameter of the bushings, bearing and bolt that connect the foreflap lever to the midflap track.
C.
To do this check, the outboard foreflap must be removed from the airplane. Usually you do this check before the outboard foreflap is installed.
TASK 27-51-05-206-001
2. Outboard Foreflap Inspection (Fig. 601)____________________________
A. Standard Tools and Equipment
(1)
Micrometer - 0 to 1 inch (0 to 3 cm)
(2)
Vernier Caliper
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本文链接地址：747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(118)
