N. Remove crossbeam (3) from bottom of midflap outboard carriage.
O. Using sling or other suitable means of supporting flap, roll flap aft and off flap tracks.
CAUTION: USE CARE IN REMOVING AND HANDLING FLAP ASSEMBLY TO PREVENT DAMAGE.
P. Install rigging pins F-5 and F-6 in holes in outboard side of boom so that boom roller (9) is trapped between rigging pins.
Q. Retain forward rollers and crossbeam with flap.
R. Retain toggle stop and carriage stop with airplane.
5. Install Inboard Trailing Edge Flap
A. Make certain that aftflap drive mechanism is properly adjusted and that rigging pins F-5 and F-6 can be installed in boom.
NOTE: If any part of aftflap drive mechanism has been disconnected, it must be readjusted as outlined in Inboard Trailing Edge Flap - Adjustment/Test.
B. Remove forward roller (2, figure 401) from each side of midflap inboard and outboard carriages.
C. Remove crossbeam (3) from bottom of midflap outboard carriage.
D. Using sling, or other suitable means of supporting flap, align midflap carriages with flap tracks and roll flap forward on tracks to retracted position.
E. Install foreflap toggle stop (5) on top of each flap track (6).
F. Install midflap carriage stop (7) in end of inboard flap track (6). Dip bolt in corrosion preventive compound before installation. Install nut finger-tight and tighten just enough more to allow installation of cotter pin. Install cotter pin.
NOTE: Pull nacelle fairing closure door down and secure with tape to prevent interference when installing flap.
G. Remove flap restraining support and roll flap down to fully extended position.
CAUTION: USE CARE IN ROLLING FLAP TO END OF TRACK TO AVOID STRIKING STOP WITH EXCESSIVE FORCE.
500
Feb 15/70 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-51-12 Page 405
G42440G42442
Inboard Trailing Edge Flap to Wing Adjustment 501
27-51-12 Figure 402 (Sheet 1) Jun 20/89
Page 406
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
501 Inboard Tailing Edge Flap to Wing Adjustment
Feb 20/89 Figure 402 (Sheet 2) 27-51-12
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
H. Install crossbeam (3) on bottom of midflap outboard carriage. Install bolts with wet primer and lockwire.
I. Install forward rollers on midflap inboard and outboard carriages. Make sure that eccentric bushings (4) are installed in position noted and marked at flap removal. All eccentric bushings on a flap must be installed in same position. If a used bolt or bushing is being installed, check for allowable wear (Ref AMM 27-51-21).
NOTE: Forward rollers may be removed during installation adjustments outlined in step R. It is not necessary to tighten retaining bolts at this time.
J. Roll flap to retract position.
K. Position ball nut (13) in gimbal shaft yoke (12) at each end of flap. Install ball nut with oil reservoir away from gimbal yoke. Make sure that clearance between ball nut upstops is not less than 3/4 turn of jackscrew.
L. Support flap so that weight of flap is off trunnions and install bushings (10) in each side of each gimbal shaft.
M. Provide hydraulic system A power (Ref AMM 27-51-0).
N. Position flap control lever at 40-unit detent to extend flaps.
O. Remove hydraulic system A power (Ref AMM 27-51-0).
P. Install two bolts (11) in each side of each gimbal shaft yoke. Coat each bolt with corrosion preventive compound. Tighten nuts to standard torque at inboard gimbal, and to between 30 and 40 pound-inches torque at outboard gimbal.
Q. Install inboard foreflap (Ref AMM 27-51-41, Inboard Foreflap - Removal /Installation).
R. Perform installation adjustments as follows:
(1)
Slowly retract flaps as follows:
(a)
Position ALTERNATE FLAPS arm switch at ARM.
(b)
Slowly retract flaps by operation of ALTERNATE FLAPS control switch to UP. Manually guide disconnected boom assembly to prevent interference with structure.
(c)
Position flap control lever at FLAP UP detent.
(d)
With flaps fully retracted electrically, position arming switch at OFF.
(e) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(7)
