Extra 300/SC, Maintenance Manual

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MAINTENANCE MANUAL EXTRA 300/SC
CHAPTER 57
PAGE 7 PAGE DATE: 12. February 2019
Figure 2 Shims Installation
6 Slide in shims if necessary and install the main spar tubular
bolts (4, Figure 3) to the wing flange bushings (11) from
front to rear.
7 Secure main spar tubular bolts with LN 9038-08020K (2)
bolts or LN 9037-08020K (2), DIN912 M8 washers and
special aluminum washers (30x11x4). Torque security bolts
for fastening and subsequently safety wire.
8 Install upper longeron cutout bridges (7) using at each side
3x DIN912 M8 x 180, 3x DIN125 M8 washers and 3x
LN9348-08 stop nuts at the top and 1x DIN912 M10 x 230
bolt, DIN125 M10 washer and LN9348-10 stop nut at the
bottom (6). Check cutout bridges for RH and LH marking.
Install the bolts from front (firewall) to rear (aircraft tail).
Torque stop nuts for fastening.
9 Install shear bridge (8). Use two LN 9037-06066 and six
LN 9037-06038 bolts (9) with DIN 125-M6 washers and
LN 9348-06 stop nuts.
10 Reinstall the front canopy hinge.
11 Install short aileron push pull rods per Ch. 27-00-01.
12 Perform an aileron rigging per Chapter 27-10-00.
13 Connect fuel system (tubes and vent lines), pitot/static sys-
tem, ground bonding leads and fuel indicator wires with
MAINTENANCE PRACTICES
Wing