钻石40飞机维护手册 DA 40 SERIES AMM 3(80)

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(2)  Install the 4 washers and bolts for the left hand and 4 washers and bolts for the right hand safety plates. 
(3)  Connect the elastomer pack to the engine mount.  Put LPS 3 on the shank of the bolt. Clean corrosion inhibitor from the threads. 
(4)  Remove the trestle from the front fuselage. 
(5)  Lower the nose wheel to the floor.  Remove the weights from the rear fuselage. 
(6)  Install the strut fairing: S Put the strut fairing in position on the strut. S Install the bolts, nuts and washers to the support bracket at the forward bottom side of the cover. S Install the bolts, nuts and washers at the trailing edge.  Optional, see O.M 40-105. Take care of the padding on the nose gear strut. 
(7)  Install the engine cowling.  Refer to Section 71-10 or 71-11. 

Doc # 6.02.01 Page 205
Rev. 4 09 Jan 2003

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4. Replace the Elastomer Elements
CAUTION:  YOU MUST ALWAYS REPLACE CRACKED ELASTOMER ELEMENTS. IF YOU DO NOT REPLACE CRACKED ELASTOMER ELEMENTS, THE PROPELLER CAN HIT AN OBJECT.
Detail Steps/Work Items  Key Items/References 
(1)  Remove the elastomer pack from the airplane.  Refer to Paragraph 3. 
WARNING: DO NOT STAND IN THE LINE OF THE ELASTOMER PACK WHEN YOU REMOVE THE NUT. THE ASSEMBLY CAN EXPAND WITH A LOT OF FORCE. 
(2)  Remove the adjusting nut from the elastomer pack. 
(3)  Replace the defective elements. 
(4)  Install the adjusting nut.  Refer to Figure 2. The distance between the center of the eye-end bearing and the center of the lower journal bearing must be 302.5 ± 1 mm (11.9 ± 0.4 in.). 
(5)  Install the elastomer pack in the airplane.  Refer to Paragraph 3. 

5. Adjust the Nose Wheel Steering Friction
Steering friction prevents nose wheel shimmy.
A. Equipment
Item  Quantity  Reference 
Padded trestle.  1  Commercial. 
Weight and strap.  1  Commercial. 
Spring balance  1  Commercial. 

Page 206 Doc # 6.02.01 09 Jan 2003 Rev. 4
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Landing Gear
AMM

B. Procedure
DA 40 Series

Detail Steps/Work Items  Key Items/References 
(1)  Use weights to hold the rear fuselage down with the nose wheel clear of the ground.  Use a strap around the fuselage. 
(2)  Put a padded trestle under the front fuselage just aft of the nose wheel mounting. 
(3)  Remove the nose wheel fairing. 
(4)  Adjust the nose wheel fork pivot nut.  The nose-wheel must just castor when you apply a force of 30-50 N (6.75 -11.25 lb) acting in the direction of the nose wheel axle. If the cotter pin hole does not align, tighten the nut to the next slot. Refer to Figure 3. 
(5)  Apply corrosion protection to the nut, stud and washers only.  Use CRC corrosion shell. Do not get CRC corrosion shell on the tire or the fiberglass. 
(6)  Install the nose-wheel fairing. 
(7)  Remove the trestle from the front fuselage. 
(8)  Lower the nose-wheel to the floor.  Remove the weights from the rear fuselage. 

6. Nose Wheel Balancing
Always have the nose-wheel balanced before installation.
Doc # 6.02.01 Page 207
Rev. 4 09 Jan 2003

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AMM

 

Apply a Force of
30 - 50 N (6.75 - 11.25 lb.)
in both Directions along
the Line of the Axle

Pivot Nut
Figure 3: Adjust the Nose Wheel Steering Friction
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Landing Gear
AMM

Section 32-40
Wheels and Brakes

1. General
This section gives you the data for the main and nose wheels. It also gives you the data for the brake system. And it gives you the trouble-shooting and maintenance practices.
　
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