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Take care not to catch the cowling on the
propeller!
AIRCRAFT
Power Plant DA 40 Series
AMM
Page 202
20 Sep 2007 71-11-00 Doc # 6.02.01
Rev. 5
3. Install the Engine Cowlings
A. Install the Bottom Cowling
Detail Steps/Work Items Key Items/References
(1) Examine the bottom cowling. Make sure that :
S The cowling is clean.
S The cowling is not damaged.
S The quick-release fasteners are not
missing/damaged.
Repair any damage.
Replace missing/damaged fasteners.
(2) Lift the cowling into position:
S Move the cowling upwards.
S Lift the cowling fully into position.
S Tighten the quick-release fasteners.
Take care of the air inlets. Engage the
respective shrouds
B. Install the Top Cowling
Detail Steps/Work Items Key Items/References
(1) Examine the top cowling. Make sure that :
S The cowling is clean.
S The cowling is not damaged.
S The quick-release fasteners are not
missing/damaged.
Repair any damage.
Replace missing/damaged fasteners.
(2) Move the top cowling into position.
(3) Gently pull the edges of the cowling apart and
lower the cowling into position.
(4) Tighten the quick-release fasteners.
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-11-00 Page 203
20 Sep 2007
4. Cleaning and Painting
A. Clean the Cowling
Detail Steps/Work Items Key Items/References
(1) Wash the outer surface with a mixture of water
and a mild detergent.
Obey the detergent manufacturer’s
instructions.
(2) Wash the inner surface with a mixture of water
and a mild detergent.
Obey the detergent manufacturer’s
instructions.
CAUTION: DO NOT USE POLISH CONTAINING SILICONE. SILICONE MAKES
GFRP REPAIR DIFFICULT.
(3) Polish the outer surface with wax polish. Obey the polish manufacturer’s
instructions. Do not use silicone polish.
AIRCRAFT
Power Plant DA 40 Series
AMM
Page 204
20 Sep 2007 71-11-00 Doc # 6.02.01
Rev. 5
B. Paint the Inside of the Cowling
This Paragraph gives the data for painting the inside of the engine cowlings with fire protection paint.
Refer to Section 51-20 for repairs and painting the outside of the cowlings.
Detail Steps/Work Items Key Items/References
(1) Clean the inside of the cowling.
(2) Make the area rough for painting. Use 150-320 grade wet and dry paper.
WARNING: DO NOT GET ACETONE ON YOUR SKIN. ACETONE CAN CAUSE
SKIN DISEASE.
WARNING: DO NOT BREATHE ACETONE FUMES. ACETONE FUMES CAN
CAUSE ILLNESS.
CAUTION: REMOVE ACETONE AS SOON AS POSSIBLE FROM GFRP.
ACETONE CAN CAUSE THE RESIN TO SOFTEN AND FAIL.
(3) Clean the area for painting. Use acetone.
(4) Paint the inside of the cowling with fire protection
paint.
Obey the paint manufacturer’s
instructions.
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-20-00 Page 1
20 Sep 2007
Section 71-20
Engine Mounting - Lycoming Engine
1. General
Tubular steel makes the engine mount. The engine mount has welded joints. Paint protects the frame
from corrosion. Rubber lined P-clamps and cable ties hold electrical cables and other items of
equipment to the engine mount.
The engine mounting -frame has five small mounting pads at the rear of the frame. Bolts through the
pads attach the engine mount to the fuselage. The center mounting also supports the elastomer pack
for the nose gear leg.
The engine attaches to the engine mount at four mounting pads. Shock mounts go between the engine
and the engine mount pads. These shock mounts isolate the airframe from engine vibrations.
AIRCRAFT
Power Plant DA 40 Series
AMM
Page 2
20 Sep 2007 71-20-00 Doc # 6.02.01
Rev. 5
Bolt
Large Washer
Firewall
Engine Mount
Washer
Self-Locking Nut
Pads for
Shock-Mounts
Nose Landing Gear
Attachment
Oil Cooler
Brackets
Pads for Attachment
to Firewall
ATTACHMENT TO THE FIREWALL
Figure 1: Engine Mount Assembly
AIRCRAFT
DA 40 Series
AMM
Power Plant
Doc # 6.02.01
Rev. 5 71-20-00 Page 101
20 Sep 2007
Trouble-Shooting
1. General
The table below lists the defects you could have with the engine mounting. If you have the trouble
detailed in the Trouble column read across to the Possible Cause column. Then do the repair in the
Repair column.
Trouble Possible Cause Repair
Engine vibration. Cracked engine mount.
Defective shock mounts.
Do a test for cracked tubes.
　
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本文鏈接地址：鉆石40系列AMM 3(38)