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(4) Install the left and right shields to the aft
baffle.
(5) Install the Ty-wraps that hold the spark plug
leads
(6) Connect the spark-plug leads to the spark
plugs.
(7) Install the engine cowlings. Refer to Chapter 71-10.
(8) Do an engine run up test. Refer to the DA20-C1 Flight Manual.
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6. Starting Vibrator Battery Test
Detail Steps/Work Items Key Items
(1) Set Battery switch to OFF
(2) Remove the engine cowlings. Refer to Chapter 71-10.
(3) Measure voltage between positive and
negative terminals of starting vibrator
battery.
Replace starting vibrator battery if voltage
below 12V.
(4) Install the engine cowlings. Refer to Chapter 71-10.
7. Remove/Install The Starting Vibrator Battery
A. Remove The Starting Vibrator Battery
Detail Steps/Work Items Key Items
(1) Remove the engine cowlings. Refer to Chapter 71-10.
(2) Disconnect airplane battery Refer to Chapter 24-31.
(3) Disconnect leads from starting vibrator
battery terminals
(4) Loosen gear clamp and remove starting
vibrator battery.
B. Install The Starting Vibrator Battery
Detail Steps/Work Items Key Items
(1) Place starting vibrator battery in bracket with
terminals facing forward.
(2) Tighten gear clamp.
(3) Connect the Battery Positive lead to the
starting vibrator battery positive terminal.
(4) Connect the Battery Negative lead to the
starting vibrator battery negative terminal.
(5) Connect airplane battery. Refer to Chapter 24-31.
(6) Install the engine cowlings. Refer to Chapter 71-10.
(7) Do an engine run up test. Refer to the DA20-C1 Flight Manual.
DA20-C1 AMM
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CHAPTER 75
AIR
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TABLE OF CONTENTS
CHAPTER 75-00 AIR COOLING ..............................................................................................................1
1. General .............................................................................................................................1
2. Description ........................................................................................................................1
MAINTENANCE PRACTICES...............................................................................................................201
1. General .........................................................................................................................201
2. Remove/Install The Baffles...........................................................................................201
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CHAPTER 75-00
AIR COOLING
1. General
This Chapter gives you the data for the engine cooling system. It gives you the maintenance
practices to remove/install the baffles. Refer to the Continental Engine Maintenance Manual for
data about the engine inter-cylinder baffle assembly. Refer to Figure 1 for location data.
2. Description
Baffles control the cooling air flow. Ram air enters the two air intakes at the front of the top engine
cowling. The baffle assembly sends the ram air around the engine cylinders. The engine cooling
system has these baffles:
A. Apron Baffle
The GFRP or CFRP apron (front) baffle attaches to the engine by the two inter-cylinder bracket
assemblies (Continental parts). Rivets attach aluminum LH and RH forward baffles to the apron
baffle. The inter-cylinder brackets are near the base of the cylinders. The apron baffle also
attaches outboard to the LH and RH baffles with screws.
B. LH and RH Baffles
Aluminum baffles attach to the engine cylinder heads on each side with two screws (These are
the LH baffle and RH baffle). The front part of the LH and RH baffles attaches to the apron
baffle. The rear of each baffle bends around the rear cylinder for a short distance. Two screws
attach each baffle to the aft baffle.
C. LH Aft and RH Aft Baffles
Aluminum LH aft and RH aft baffles attach to the related LH and RH baffle. They also attach to
the bottom of the aft baffle.
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D. Aft Baffle
The GFRP or CFRP aft baffle attaches to the inter-cylinder baffles (Continental parts) and the
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