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20 Sep 2007 32-10-00 Doc # 6.02.01
Rev. 5
A
A
B
B
Inner Bolt
Mounting Block
Polyamide Insert
Retaining Bolt
Nut Washer Web
Spring Washers
Convex Washer
Concave Washer
Castle Nut
Cotter Pin
Bolt
Plain Washer
Flexible Insert
Retaining Bar
Washer
Nut
Figure 1: Main Landing Gear Strut Mounting
AIRCRAFT
DA 40 Series
AMM
Landing Gear
Doc # 6.02.01
Rev. 5 32-10-00 Page 101
20 Sep 2007
Trouble-Shooting
1. General
Use the data below to trouble-shoot the main landing gear.
WARNING: YOU MUST DO A HARD LANDING CHECK AFTER A HARD LANDING.
HARD LANDING CAN CAUSE DAMAGE TO THE STRUCTURE AS
WELL AS THE LANDING GEAR.
Trouble Possible Cause Repair
Strut bent. Hard landing. Do a hard landing check. Refer
to Section 05-50.
Replace the strut.
Negative camber. Strut bent, hard landing. Do a hard landing check. Refer
to Section 05-50.
Replace the strut.
Too much tire wear. Incorrect toe-in. Adjust the toe-in. Refer to
'Test/Adjust the Main Landing
Gear' procedure described
later in this Section.
AIRCRAFT
Landing Gear
DA 40 Series
AMM
Page 102
20 Sep 2007 32-10-00 Doc # 6.02.01
Rev. 5
Intentionally left blank
AIRCRAFT
DA 40 Series
AMM
Landing Gear
Doc # 6.02.01
Rev. 5 32-10-00 Page 201
20 Sep 2007
Maintenance Practices
1. General
These maintenance practices tell you how to remove, install and adjust the main landing gear. Refer
to the manufacturer for further data.
2. Remove/Install a Main Landing Gear Strut
A. Equipment
Item Quantity Part Number
Airplane jacks. 3 Commercial.
Nose trestle. 1 Commercial.
Wing trestles. 2 Commercial.
B. Remove a Main Landing Gear Strut
Detail Steps/Work Items Key Items/References
(1) Lift the airplane on jacks. Refer to Section 07-10.
(2) Remove the strut fairing, if installed:
S Remove brake cover.
S Remove stub wing cover.
S Remove strut fairing.
Optional, see OÄM 40-106.
Remove bolts and washers.
Remove bolts and washers.
Remove bolts and washers at the rear.
(3) Remove the wheel fairing:
S Remove the outer bolt.
S Remove 4 screws from the inner side.
(4) Remove the back-plate from the brake caliper. Refer to Section 32-40.
(5) Remove the wheel. Refer to Section 32-40.
(6) Release the brake caliper.
(7) Remove the 6 bolts which attach the axle.
Remove the axle, torque-plate and mounting
plate for the wheel fairing.
Refer to Figure 2.
Only if you will install a different strut.
(8) Disconnect the bonding cable from the strut.
AIRCRAFT
Landing Gear
DA 40 Series
AMM
Page 202
20 Sep 2007 32-10-00 Doc # 6.02.01
Rev. 5
Brake Unit
Brake Torque Plate
Axle
Axle Nut
Mounting Plate
for Fairing
Main Gear Leg
Bolt
Washer
Nut
Figure 2: Main Landing Gear Axle Installation
AIRCRAFT
DA 40 Series
AMM
Landing Gear
Doc # 6.02.01
Rev. 5 32-10-00 Page 203
20 Sep 2007
Detail Steps/Work Items Key Items/References
% (9) Remove the 6 bolts, washers and nuts which
% hold the mounting block to the web.
Refer to Figure 1.
(10) Remove the nuts which hold the retaining bar to
the outer mounting bracket.
Hold the strut!
(11) Remove the strut. Move the strut outboard.
% (12) If necessary remove the nut and bolt at the inner
attachment mount.
Refer to Figure 1.
C. Install a Main Landing Gear Strut
Detail Steps/Work Items Key Items/References
(1) Examine the center section in the area of the
main landing gear mountings. Look specially for
damage to the GFRP structure.
Refer to Section 51-10 for GFRP
inspection procedures.
% (2) If necessary install the nut and the bolt at the
% inner attachment mount.
Refer to Figure 1.
(3) Put the strut in position. Move it inboard through the center
section access panel.
(4) Put the inserts in position above and below the
strut at the outer mounting.
Hold the strut!
(5) Apply grease to the bolts. Use MIL-G-3545 grease.
(6) Install the retaining bar. Torque 20 Nm (14.8 ft.lb). Make sure
that the flexible insert is glued in
position. Use Loctite Superglue.
(7) Apply grease to the washers and the nuts. Use MIL-G-3545 grease.
% (8) If necessary install the mounting block to the web
% by use of the 6 bolts, washers and nuts.
Refer to Figure 1. Make sure that the
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