27-81-05
TORQUE TUBE END FITTINGS ú ú 01 Page 603 ú Jun 18/00
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747-400 MAINTENANCE MANUAL
S 866-012
(2) Retract the leading edge flaps (AMM 27-81-00/201).
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27-81-05
TORQUE TUBE END FITTINGS ú ú 01 Page 604 ú Jun 18/00
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MAINTENANCE MANUAL
2. SPLINE COUPLING SLEEVE/ROTARY ACTUATOR SHAFT
A-A LARGER VIEW OF SAMPLE TEETH SPLINE
0.030 INCH FOR 27 TEETH, 16/32 EXTERNAL SPLINE
0.020 INCH FOR 20 TEETH, 16/32 EXTERNAL SPLINE
0.015 INCH FOR 28 TEETH, 32/64 INTERNAL SPLINE
Flap Driveshaft Splined Coupler Wear Limits
Figure 601
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747-400 MAINTENANCE MANUAL
DRIVE SHAFT - REPAIRS
_____________________
1. General_______
A. There are two tasks in this procedure. There is one task to repair the torque tube. There is one task to splice the torque tube into the drive shaft.
B. AIRPLANES WITH ELECTROMAGNETIC FORMING (EMF) END FITTINGS; No play is permitted on EMF end fittings. If the end fittings do become loose, replace the torque tube (AMM 27-81-05/401).
TASK 27-81-05-308-001
2. Torque Tube Repair__________________
A. Standard Tools and Equipment
(1)
Micrometers, to measure internally and externally
B.
Consumable Materials
(1)
B00352 Alodine 1200
(2)
C00432 Primer - BMS 10-11, Type I
C.
References
(1)
51-21-04/701, Alodized Surfaces
(2)
IPC 27-81-51 Fig. 1
D.
Access
(1)
Location Zone
512 Krueger Flap Inboard, LH
513 Krueger Flap Midflap, LH
514 Krueger Flap Outboard, LH
522 Variable Camber Flap, LH
523 Variable Camber Flap, LH
524 Variable Camber Flap, LH
525 Variable Camber Flap, LH
526 Variable Camber Flap, LH
532 Variable Camber Flap, LH
533 Variable Camber Flap, LH
534 Variable Camber Flap, LH
535 Variable Camber Flap, LH
536 Variable Camber Flap, LH
537 Variable Camber Flap, LH
612 Krueger Flap Inboard, RH
613 Krueger Flap Midflap, RH
614 Krueger Flap Outboard, RH
622 Variable Camber Flap, RH
623 Variable Camber Flap, RH
624 Variable Camber Flap, RH
625 Variable Camber Flap, RH
626 Variable Camber Flap, RH
632 Variable Camber Flap, RH
633 Variable Camber Flap, RH
634 Variable Camber Flap, RH
635 Variable Camber Flap, RH
636 Variable Camber Flap, RH
637 Variable Camber Flap, RH
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27-81-05
ALL ú ú 01 Page 801 ú Feb 10/96
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MAINTENANCE MANUAL
0.75 INCH (USUAL) 0.75 INCH (USUAL)
SPLICE TUBE (SEE TABLE 1 FOR DIMENSION AND MATERIAL)
TABLE I
DRIVE SHAFT DIMENSION (INCHES) OD X WALL THICKNESS SPLICE TUBE OR BAR STOCK (12 NECESSARY) BOLT
MATERIAL (INCHES) 2 TUBE WALL THICKNESS
0.875 X 0.065 3 0.12 MINIMUM NAS1103-14
1.0 X 0.049 0.09 MINIMUM NAS1103-16
1.0 X 0.065 0.12 MINIMUM NAS1103-16
1.0 X 0.083 0.18 MINIMUM NAS1103-16
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