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CAUTION: CLEAN UP SPILT BRAKE FLUID IMMEDIATELY. BRAKE FLUID
CAN DAMAGE PAINT AND OTHER MATERIAL
(3) Disconnect the 4 brake pipes from the
parking brake valve.
Catch the brake fluid!
Put caps on the connections.
(4) Remove the nuts, bolts and washers which
attach the parking brake valve.
(5) Remove the parking brake valve.
Landing Gear
DA20-C1 AMM
Page 210
19 Dec 1997 32-40-00 Doc # DA201-C1
Rev. 0
B. Install The Parking Brake Valve
Detail Steps/Work Items Key Items
(1) Put the parking brake valve in position.
(2) Install the nuts, bolts and washers which
attach the parking brake valve.
Make sure that the bracket for the bowden
cable is in position.
(3) Connect the 4 brake pipes to the parking
brake valve.
(4) Put center wire of the bowden cable through
the end fitting on the parking brake lever.
Tighten the bolt
With the brake lever in the center console
set to OFF, the lever on the parking brake
valve must be fully forward.
(5) Bleed the brake system. Refer to paragraph 7.
(6) Do a function test of the parking brake:
− Set the parking brake to ON.
− Pump the foot brake pedals.
− The brakes must stay on.
− Set the parking brake to OFF.
− The brakes must release.
(7) Install the right pilot’s seat. Refer to Chapter 25-10
DA20-C1 AMM
Landing Gear
Doc # DA201-C1
Rev. 0 32-40-00 Page 211
19 Dec 1997
7. Bleed the Brake System
A. Equipment
Item Quantity Reference
Pressure bleed equipment with MIL-H-5606A brake
fluid.
1 Commercial
Transparent overflow pipe and container. 1 Commercial
B. Bleeding Procedure
Do this procedure for each brake system (left and right) as necessary.
Detail Steps/Work Items Key Items
(1) Clean the area of the brake fluid reservoir
cap.
(2) Remove the cap.
WARNING: DO NOT GET BRAKE FLUID ON YOU. BRAKE FLUID CAN CAUSE
DISEASE
CAUTION CLEAN UP SPILT BRAKE FLUID IMMEDIATELY. BRAKE FLUID
CAN DAMAGE PAINT AND OTHER MATERIAL
(3) Connect the transparent overflow pipe to the
reservoir.
Put the free end of the pipe in a container.
(4) Clean the area around the bleed nipple.
(5) Connect the pressure bleed equipment to
the bleed nipple below the brake caliper.
Use only MIL-H-5606A brake fluid.
(6) Open the bleed nipple about 1/2 to 1 turn.
(7) Use the pressure bleed equipment to fill the
brake system.
(8) Operate the parking brake ON and OFF 10
to 20 times to remove the air from the
system.
Continue bleeding the system.
(9) Operate the pilot’s brake pedals many times
to remove the air from the system.
Continue bleeding the system.
(10) Operate the co-pilot’s brake pedals many
times to remove the air from the system.
Continue bleeding the system until no
more air bubbles come from the reservoir.
Landing Gear
DA20-C1 AMM
Page 212
29 Apr 2004 32-40-00 Doc # DA201-C1
Rev. 9
Detail Steps/Work Items Key Items
(11) Close the bleed nipple. Remove the
pressure bleed equipment.
(12) Remove the overflow pipe and container.
(13) Measure the fluid level in the reservoir. If
necessary, add or remove fluid.
The correct level is 12 mm(1/2 in) below
the top of the filler hole. When the level is
25 mm(1.0 in) below the top of the filler
hole you must add fluid to the correct level.
Refer to the Brake System Schematic
Refer to Figure 2.
(14) Install the reservoir cap.
(15) Do a function test of the brake system.
8. Condition The Brake Linings
The brake linings are a non-asbestos organic material. You must condition new brake linings.
Conditioning gives a thin layer of glaze at the friction surface. Usual brake usage keeps the layer of
glaze for the life of the brake lining.
Light brake use can wear off the glaze. This reduces brake performance. If the glaze wears off, do
the conditioning procedure.
Detail Steps/Work Items Key Items
(1) Taxi the airplane for 1500 ft with 1700
engine rpm.
Use the brakes to keep the speed at 5 - 10
mph (8 - 16 km/h).
(2) Let the brakes cool for 10-15 minutes.
(3) Apply the brakes. Do a high throttle run-up. The brakes must hold with the usual pedal
force.
(4) If the brakes do not hold the static run-up, do
steps 1 - 3 again as necessary.
DA20-C1 AMM
Landing Gear
Doc # DA201-C1
Rev. 15 32-40-00 Page 213
30 Apr 2009
9. Wheels and Brakes Cleaning Procedures
Do the following inspection and cleaning procedures of the DA20-C1 wheels and brakes.
　
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