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RH and LH aft brackets with screws. It also attaches to the LH and RH baffles with screws. The
aft baffle has holes with shields for the ignition leads and the fuel pressure hose. It also has a
hole on the left side that supplies air through a flexible hose to the oil cooler. The throttle and
mixture control cables go through two holes with grommets.
A rubber seal attaches to the top edge of all of the baffles by rivets. It makes the air seal against
the top of the engine cowling.
E. Winter Kit Baffles
The GFRP or CFRP inlet baffles winter kit are attached to the upper cowling using Camlocs.
The GFRP or CFRP outlet baffles winter kit are attached to the lower cowling using screws. The
RH outlet baffle has a cutout with a rubber seal for the oil vent tube.
Inlet and outlet baffles can be installed together or separately. Temperature ranges are shown
in Supplement 2 of the flight manual.
DA20-C1 AMM
Air
Doc # DA201-C1
Rev. 9 75-00-00 Page 3
29 Apr 2004
Winter Baffle Kit Installation
Air
DA20-C1 AMM
Page 4
29 Apr 2004 75-00-00 Doc # DA201-C1
Rev. 9
Intentionally left blank
DA20-C1 AMM
Air
Doc # DA201-C1
Rev. 0 75-00-00 Page 201
19 Dec 1997
MAINTENANCE PRACTICES
1. General
These Maintenance Practices tell you how to remove/install the engine baffles. Refer to Figure 1
for location data.
Refer to Chapter 71-00 for data on the engine.
2. Remove/Install The Baffles
A. Remove The Baffles
Detail Steps/Work Items Key Items
WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE
PROPELLER. IF THE ENGINE STARTS, THE PROPELLER CAN
CAUSE DEATH OR INJURY TO PERSONS.
WARNING: YOU MUST MAKE SURE THAT THE ENGINE IS SAFE BEFORE
YOU TURN THE PROPELLER. DISCONNECT THE SPARK PLUG
LEADS. MAKE SURE THAT:
- THE IGNITION SWITCH IS IN THE “OFF” POSITION.
- THE “P” LEADS ARE GROUNDED.
- THE THROTTLE IS SET TO “IDLE”.
- THE MIXTURE CONTROL IS SET TO “LEAN CUT-OFF”.
(1) Remove the top and bottom engine
cowlings.
Refer to Chapter 71-10
(2) Make the engine safe:
− Disconnect the spark plug leads.
− Make sure the magnetos are set to OFF.
− Make sure the “P” leads are grounded.
− Set the throttle to IDLE.
− Mixture control set to LEAN-CUT OFF.
Air
DA20-C1 AMM
Page 202
29 Apr 2004 75-00-00 Doc # DA201-C1
Rev. 9
Figure 1: Air Baffles
DA20-C1 AMM
Air
Doc # DA201-C1
Rev. 10 75-00-00 Page 203
23 Jun 2004
Detail Steps/Work Items Key Items
(3) Remove the left and right shields from the aft
baffle:
− Remove the screws and nuts from the
left shield.
− Remove the screws and nuts from the
right shield.
(4) Remove the throttle control cable from the
bracket at the top of the plenum assembly:
− Remove the two nuts/bolts and washers.
(5) Disconnect the mixture control cable from
the fuel mixture control lever:
For aircraft with a standard fuel pump:
− Loosen the stiff nut.
− Remove the control cable from the
mixture control lever.
For aircraft with an altitude compensating
fuel pump:
− Remove the nut.
− Remove the bolt.
− Remove the three washers.
(6) For aircraft with a standard fuel pump:
Remove the mixture control cable and
bracket from the apron:
− Remove the screw and spring washer.
For aircraft with an altitude compensating
fuel pump:
Remove the mixture control cable from the
front support bracket:
− Remove the nuts, washers and screws
that fasten the mixture cable keeper to
the bracket.
− Remove the mixture cable keeper.
− Remove the mixture control cable from
the front support bracket.
(7) For aircraft with a standard fuel pump:
− Cut the ty-wrap and remove the mixture
control cable from the support bracket at
the top of the engine.
Air
DA20-C1 AMM
Page 204
23 Jun 2004 75-00-00 Doc # DA201-C1
Rev. 10
Detail Steps/Work Items Key Items
For aircraft with an altitude compensating
fuel pump:
− Remove the rod end and jam nut from
the mixture control cable.
− Cut the cable tie that connects the
mixture control cable to the #2 cylinder
induction tube.
WARNING: DO NOT GET OIL ON YOU. OIL CAN CAUSE SKIN DISEASE.
WARNING: DO NOT GET FUEL ON YOU. FUEL CAN CAUSE SKIN DISEASE.
DO NOT ALLOW FIRE NEAR FUEL. FIRE BURNS AND CAN
CAUSE INJURY TO PEOPLE AND DAMAGE TO EQUIPMENT.
　
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