Diamond Aircraft DV 20 KATANA, Maintenance Manual

Page: 363 / 743

AIRCRAFT
DV 20 KATANA AMM
Flight Controls
Doc # 4.02.02
Rev. 13
27-20-30
Page 3
15 Dec 2018
5. Replacement of Rudder Upper Hinge Bearing
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Note: Fiber direction reference for all glass fiber plies is the leading edge of the rudder.
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Detail Steps/Work Items
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Key Items/References
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(1)
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Remove the ball from the bearing.
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CAUTION: DO NOT DAMAGE THE COMPOSITE STRUCTURE.
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(2)
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Cut the bearing jacket with a hand milling
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machine and remove the bearing.
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(3)
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Paste the new bearing with thickened resin.
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Refer to Chapter 51.
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(4)
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Cure and post cure the area of the bearing.
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6. Replacement of Rudder Upper Hinge Pin
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Detail Steps/Work Items
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Key Items/References
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(1)
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Cut two Ø 30 mm (1.2 in) holes beside the
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rudder nose bonding flange:
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S
Cut the first hole 35 mm (1.4 in) behind the
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nose bonding flange and 65 mm (2.55 in)
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below the hinge pin.
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Cut the second hole 30 mm (1.2 in) below
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the first hole. (The distances are measured
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to the center of the holes).
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(2)
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Connect the holes to an elongated hole in
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accordance with sketch 1.
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Refer to Figure 2.
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(3)
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Remove the glass fiber cloth that covers the bolt
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with a hand milling machine.
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(4)
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Remove the bolt.
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(5)
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Bond the new bolt with thickened resin.
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(6)
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Cover the bolt with
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3 layers 110 x 70 mm (4.3 x 2.8 in) of 92125
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glass fiber fabric (+/- 45°).
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