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adjustment.
Adjust the latch mechanism.
Emergency side windows
difficult to move.
Emergency side window guides
dirty or damaged.
Clean or replace the side
window guides.
Canopy warning light does not
operate correctly.
Canopy warning light out of
adjustment.
Adjust the canopy warning
light micro-switch.
Doors
DA20-C1 AMM
Page 102
19 Dec 1997 52-10-00 Doc # DA201-C1
Rev. 0
Intentionally left blank
DA20-C1 AMM
Doors
Doc # DA201-C1
Rev. 0 52-10-00 Page 201
19 Dec 1997
MAINTENANCE PRACTICES
1. General
These maintenance practices tell you how to remove and install the canopy. They also tell you how
to do a canopy latch force test/adjust.
2. Remove/Install The Canopy
CAUTION: TWO PEOPLE WILL BE NEEDED TO REMOVE/INSTALL THE
CANOPY. THE CANOPY WILL BE DAMAGED IF YOU DROP IT.
A. Remove The Canopy
Detail Steps/Work Items Key Items
(1) Open the canopy.
(2) Remove the screws that attach the rear
hinge to the rear of the canopy.
Hold the canopy.
(3) Remove the rod end bearings from the
stabilizing rods at the canopy frame.
(4) Lift the canopy clear of the airplane.
B. Install The Canopy
Detail Steps/Work Items Key Items
(1) Lift the canopy into position on the airplane.
And hold the canopy open.
(2) Install the rod end bearings to the stabilizing
rods at the canopy frame.
(3) Install the screws that attach the hinged tube
to the rear of the canopy.
(4) Close the canopy. And operate both canopy
latches.
Make sure the canopy latch mechanism
pulls the canopy fully closed.
(5) Set the GEN/BAT switch to ON. Make sure the canopy warning light goes
out. If necessary, adjust the micro
switches. (Refer to the micro-switch
adjustment procedure)
Doors
DA20-C1 AMM
Page 202
29 Apr 2004 52-10-00 Doc # DA201-C1
Rev. 9
3. The Canopy Latch Force Test
A. Equipment
Items Quantity Part Number
Strap 1 Commercial
Spring scale 1 Commercial
B. The Canopy Latch Force Test – Canopies With Internal Handles Only
Detail Steps/Work Items Key Items
(1) Close the canopy. Make sure both handles are fully forward.
(2) Set the GEN/BAT switch to ON.
(3) Make sure the canopy warning light goes off.
− Set the GEN/BAT switch to OFF.
(4) Loosen the friction adjusting screw for the
canopy handle.
To completely release the pressure on the
conical washers.
(5) Put a strap around the canopy grip at the
top. Attach the spring scale to the strap.
− Pull the spring scale straight aft and up
at approximately 30°.
− Measure and record the force necessary
to move the grip to the unlocked position.
− If necessary, adjust the force required to
move the grip.
Force must be between 45-90 N (10-20 lbf)
Refer to the adjustment procedure.
(6) Open the canopy a small distance.
(7) Tighten the friction adjusting screw for the
canopy handle.
(8) Put a strap around the canopy grip at the
top. Attach the spring scale to the strap.
− Pull the spring scale straight aft.
− Measure and record the force necessary
to move the grip to the unlocked position.
− If necessary, adjust the friction adjusting
screw to give the correct force.
Force must be between 11-22 N (2.5-5 lbf)
(9) Do item 1 to 8 for the other grip.
DA20-C1 AMM
Doors
Doc # DA201-C1
Rev. 9 52-10-00 Page 203
29 Apr 2004
C. The Canopy Latch Force Test – Canopies With External Handles
Detail Steps/Work Items Key Items
(1) Close the canopy. Make sure internal handles are forward.
(2) Set the GEN/BAT switch to ON.
(3) Make sure the canopy warning light goes off.
− Set the GEN/BAT switch to OFF.
(4) Put a strap around the canopy grip at the top.
Attach the spring scale to the strap.
− Pull the spring scale aft and upwards at
an angle of 30°.
− Measure and record the force necessary
to move the grip to the unlocked position.
− If necessary, adjust the force required to
move the grip.
Force must be between 66-110N (15-25 lbf)
Refer to the adjustment procedure.
(5) Do item 1 to 4 for the other grip.
Doors
DA20-C1 AMM
Page 204
29 Apr 2004 52-10-00 Doc # DA201-C1
Rev. 9
4. Adjust The Canopy Latch Force
Detail Steps/Work Items Key Items
(1) . Release the screws which hold the strike
block assembly to the fuselage.
Refer to Figure 2
(2) Lower the strike block assembly and install
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