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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