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transparent top coat shall be sprayed very
thin (mist coat) over the fire resistant paint.
For approved materials and suppliers
Refer to Ch 51-00.
Make sure that the painting is done in a
dust free area.
The top coat shall be applied by high
pressure spraying, as follows:
- Spray viscosity - (DIN 53211)
18 - 20 sec.
- Orifice - 1.5 mm (.060”)
- Pressure - 3 to 5 bar (40 to 70 PSI).
(13) Let the transparent top coat dry, in a dust
free area, for a minimum of 16 hours.
The first transparent top coat must dry
between a minimum of 16 hours and a
maximum of 3 days before the second
transparent top coat is applied.
(14) Remove any dust that has collected with a
fully opened tack cloth.
(15) After a minimum of 16 hours, apply a second
coat of transparent top coat. The second
transparent top coat shall be sprayed to a
total dry film thickness of 25 microns
(.001” or 1 mil.).
Make sure that the painting is done in a
dust free area.
(16) Let the transparent top coat dry, in a dust
free area, for a minimum of 24 hours.
The following drying times refer to a normal
climate of 23ºC and 50% humidity:
- Ready for further coat - after 16 hrs.
minimum, 3 days maximum
- Transportable - after 24 hrs. minimum
- Chemical resistant - after 7 days.
(17) Remove and discard the cover(s) and
masking tape from the cowling.
Remove any dust that has collected with a
fully opened tack cloth.
(18) Visually inspect the completed high
temperature paint repair(s).
Make sure that there are no defects, such as
bubbles, pinholes, craters, chips, scratches
or abrasions.
(19) Install the cowling. Refer to Chapter 71-10.
DA20-C1 AMM
Power Plant
Doc # DA201-C1
Rev. 9 71-20-00 Page 1
29 Apr 2004
CHAPTER 71-20
MOUNTS
1. General
The DA20-C1 has an engine mounting frame. The mounting frame attaches the engine to the
airframe. It also has shock mounts that are Installed between the mounting frame and the engine.
The shock mounts decrease the vibration transmitted from the engine to the airframe.
Figure 1 shows the engine mounting frame. Refer to the Teledyne Continental Maintenance
Manual for data on the engine shock mounts.
2. Description
The engine-mounting frame attaches to the firewall with bolts and self-locking nuts. Tubular steel
makes the mounting frame. The mounting frame attaches to the engine with shock-mounts.
Rubber and metal bushings make the engine shock-mounts.
P-clips and Ty-wraps attach electrical cables to the mounting frame. They also attach pipes and
hoses to the mounting frame.
Power Plant
DA20-C1 AMM
Page 2
24 Mar 1999 71-20-00 Doc # DA201-C1
Rev. 1
Figure 1: Engine Mounting Frame
DA20-C1 AMM
Power Plant
Doc # DA201-C1
Rev. 0 71-20-00 Page 201
19 Dec 1997
MAINTENANCE PRACTICES
1. General
These maintenance practices tell you how to remove and install the engine mounting frame with the
engine removed from the airplane. And they tell you how to remove and install the engine shock
mounts.
Refer to Chapter 71-00 for the engine remove/install procedure.
Refer to the Teledyne Continental Motors Maintenance Manual for data on the engine. Also refer to
the Teledyne Continental Motors Maintenance Manual for data on the shock mounts.
2. Remove/Install The Engine Mounting Frame
A. Remove The Engine Mounting Frame
Detail Steps/Work Items Key Items
Note: The remove the engine mounting frame procedure that follows, has the
engine removed from the airplane.
(1) Put a support below the mounting frame
before you disconnect it.
(2) Remove the P-clip that attaches the air/oil
separator vent pipe to the mounting frame.
(3) Remove the P-clip that attaches the fuel
pump and cylinder drain pipes to the
mounting frame.
(4) Remove the four nuts that attach to the
mounting frame bolts.
(5) Carefully pull the mounting frame bolts from
the mounting frame.
− Remove the two support struts.
− Remove the shock mount assemblies.
(6) Remove the mounting frame clear of the
engine.
Power Plant
DA20-C1 AMM
Page 202
24 Mar 1999 71-20-00 Doc # DA201-C1
Rev. 1
B. Install The Engine Mounting Frame
Detail Steps/Work Items Key Items
Note: The install the engine mounting frame procedure that follows, has the engine
removed from the airplane.
(1) Do an Inspection of the mounting frame.
Look specially for cracks.
(2) Do an inspection of the engine mounts.
Look specially for damage to the rubber
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