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(4) Put the trestles under the wings. To touch the wing under the spar.
(5) Remove the nut and spacer from the B-bolt. 
(6) Release the locking device for the main
bolts.
Pull it up against the spring. Then turn it
180°.
Wings
DA20-C1 AMM
Page 202
19 Dec 1997 57-10-00 Doc # DA201-C1
Rev. 0
Figure 3: Wing Attachment Bolts
DA20-C1 AMM
Wings
Doc # DA201-C1
Rev. 0 57-10-00 Page 203
19 Dec 1997
Detail Steps/Work Items Key Items
(8) Take the weight of the wing. One person at the wing tip.
(9) Remove the main bolt. If necessary, move the wing tip slightly up
and down.
CAUTION: DO NOT LIFT ON THE FLAP. ONLY LIFT ON THE WING
STRUCTURE.
(10) Move the wing outboard a small distance. To give access to the connections at the
wing root. Use one person on the wing tip,
one person at the wing-root leading-edge.
One person at the wing-root trailing-edge.
(11) Let the trestle hold the weight of the wing.
(12) Disconnect the electrical connector forward
of the spar.
(13) Disconnect the stall-warning hose forward of
the spar.
Left wing only.
The hose is 10mm (3/8 in) diameter.
(Transparent Color)
(14) Disconnect the pitot hose forward of the
spar.
Left wing only.
The hose is 8mm (5/16 in) diameter.
(Green Color)
(15) Disconnect the static hose forward of the
spar.
Left wing only.
The hose is 8mm (5/16 in) diameter.
(Purple Color)
CAUTION: DO NOT LIFT ON THE FLAP. ONLY LIFT ON THE WING
STRUCTURE.
(16) Move the wing away from the fuselage. Put
the wing in the wing stand.
Use one person on the wing tip, one
person at the wing-root leading-edge. One
person at the wing-root trailing-edge.
(17) If necessary, do this procedure again for the
other wing.
Wings
DA20-C1 AMM
Page 204
24 Mar 1999 57-10-00 Doc # DA201-C1
Rev.1
Figure 4: Wing Connections
DA20-C1 AMM
Wings
Doc # DA201-C1
Rev. 0 57-10-00 Page 205
19 Dec 1997
C. Install the Wings
Detail Steps/Work Items Key Items
CAUTION: DO NOT GET GREASE ON THE THREADS OF THE B-BOLT.
GREASE REDUCES THE FRICTION OF THE SELF-LOCKING NUT.
(1) Clean and lubricate the mounting bolts. Refer to Chapter 12-20
CAUTION: DO NOT LIFT ON THE FLAP. ONLY LIFT ON THE WING
STRUCTURE.
(2) Put the wing in position in the fuselage.
Leave a gap for access to the system
connections.
Use one person on the wing tip, one
person at the wing-root leading-edge. One
person at the wing-root trailing-edge.
(3) Hold the wing with a trestle. To touch the wing under the spar.
(4) Connect the static hose forward of the spar. Left wing only.
The hose is 8mm (5/16 in) diameter.
(Purple Color)
(5) Connect the pitot hose forward of the spar. Left wing only.
The hose is 8mm (5/16 in) diameter.
(Green Color)
(6) Connect the stall-warning hose forward of
the spar.
Left wing only.
The hose is 10mm (3/8 in) diameter.
(Transparent Color)
(7) Connect the electrical connector forward of
the spar.
CAUTION: DO NOT LIFT ON THE FLAP. ONLY LIFT ON THE WING
STRUCTURE.
(8) Move the wing inboard fully. Use one person on the wing tip, one
person at the wing-root leading-edge. One
person at the wing-root trailing-edge.
(9) Take the weight of the wing(s). One person at each wing tip.
(10) Install the main bolt. If necessary, move the wing tip(s) in a
circular motion.
(11) Install the spacer and nut on the B-bolt. Torque: 20 Nm (14.8 ft.lb)
(12) Let the trestles hold the weight of the
wing(s).
Wings
DA20-C1 AMM
Page 206
19 Dec 1997 57-10-00 Doc # DA201-C1
Rev.0
Detail Steps/Work Items Key Items
(13) Do this procedure again to install the other
wing.
(14) Lock the handles of the main bolts with the
locking device.
Pull it up against the spring. Then turn it to
engage both of the handles.
(15) Remove the trestles under the wings.
(16) Connect the flap control rods at the bellcrank
on the bulkhead, aft control.
Refer to Chapter 27-50
Through the panels below the fuselage.
Refer to Chapter 20 for standard torque
values.
(17) Connect the aileron control rods at the
bellcrank on the bulkhead, aft control.
Refer to Chapter 27-10
Through the panels below the fuselage.
Refer to Chapter 20 for standard torque
values.
(18) Do a check of the flap controls for correct
connection and operation.
Obey the instructions of your airworthiness
authority for control checks.
(19) Do a check of the Aileron controls for correct
　
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