Rudder Wear Limits 500
27-21-12 Page 604 Figure 601 (Sheet 4) B
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Oct 20/85
INDEX NO. PART NAME DIM DESIGN LIMITS WEAR LIMITS REPLACE WORN PART REPAIR WORN PART REPAIR INSTR.
DIAMETER MAX WEAR DIM. MAX DIAM CLEAR-ANCE
MIN MAX
25 BUSHING (HINGE 5) ID 0.4375 0.4395 0.4414 0.0045 X
BUSHING (HINGE 5) OD 0.4365 0.4370 0.4353 X
26 BUSHING (HINGE 5) ID 0.3125 0.3130 0.3149 0.0045 X
BOLT (HINGE 5) OD 0.3110 0.3120 0.3070
27 BUSHING (HINGE 5) ID 0.4380 0.4385 0.4411 0.0045
BUSHING (HINGE 5) OD 0.4365 0.4370 0.4360 X
28 BUSHING (HINGE 5) ID 0.3125 0.3135 0.3149 0.0045 X
BOLT (HINGE 5) OD 0.3110 0.3120 0.3070
29 BUSHING HINGE 6) ID 0.4375 0.4395 0.4414 0.0045 X
BUSHING (HINGE 6) OD 0.4365 0.4370 0.4353 X
30 BUSHING (HINGE 6) ID 0.3125 0.3130 0.3149 0.0045 X
BOLT (HINGE 6) OD 0.3110 0.3120 0.3070
31 BUSHING (HINGE 6) ID 0.4380 0.4385 0.4411 0.0045
BUSHING (HINGE 6) OD 0.4365 0.4370 0.4360 X
32 BUSHING (HINGE 6) ID 0.3125 0.3135 0.3149 0.0045 X
BOLT (HINGE 6) OD 0.3110 0.3120 0.3070
33 BUSHING (HINGE 7) ID 0.3750 0.3790 0.3808 0.0060 X
BUSHING (HINGE 7) OD 0.3740 0.3745 0.3729 X
34 BUSHING (HINGE 7) ID 0.2500 0.2505 0.2525 0.0040 X
BOLT (HINGE 7) OD 0.2485 0.2495 0.2480
35 BUSHING (HINGE 7) ID 0.3755 0.3760 0.3784 0.0045
BUSHING (HINGE 7) OD 0.3740 0.3745 0.3735 X
36 BUSHING (HINGE 7) ID 0.2500 0.2540 0.2560 0.0080 X
BOLT (HINGE 7) OD 0.2485 0.2495 0.2480
CHROME PLATE THICKNESS 0.0030 INCH
SUM OF TWO NOT TO EXCEED 0.0060 INCH
500 Rudder Wear Limits
Oct 20/85 Figure 601 (Sheet 5) B
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27-21-12 Page 605
RUDDER HINGES - REMOVAL/INSTALLATION
EFFECTIVITY
Airplanes with Aluminum/Fiberglass Rudder
1. General
A. The rudder is attached to the vertical fin at seven hinge points. Each of the rudder hinge segments may be replaced individually.
B. The vertical fin contains five removable hinge segments. The two lower hinge points are contained in structural members.
2. Equipment and Materials
A. Corrosion Preventive Compound - MIL-C-11796, Class 3 (Ref 20-30-21)
B. Rigging Pins Kit - F70207-3, -52, -61, or -84.
REF NO. F70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
R-3 -11 0.309-0.311 6.7 +0.25 Rudder Fwd Quadrant
C. Milliohmmeter - 0 to 0.1-ohm range.
3. Prepare to Remove Rudder Hinge
A. Place rudder trim control wheel in neutral position.
B. Remove rudder systems A, B, and standby hydraulic power (Ref 27-21-0 MP).
C. Install rigging pin R-3 in forward quadrant.
4. Remove Rudder Hinge (Fig. 401)
A. Remove selected hinge coverplates from rudder leading edge.
B. Remove rudder hinge pivot bolt and bonding jumper.
NOTE: Bonding jumpers are installed on No. 2 and 7 rudder hinges.
C. Remove internal-wrenching attach bolts and separate rudder hinge segment from rudder structure.
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