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1) Connect a ground cable from the aircraft to an approved ground terminal.
2) Disconnect the battery - refer to 24-30-02, and install the following warning sign :
WARNING
MAINTENANCE WORK IN PROGRESS
ON FUEL SYSTEM
DO NOT CONNECT
3) Position a drain container below the draining point of each wing.
4) Remove bleed body (4) with the fork wrench.
5) Defuel.
6) Clean base (1) and bleed body (4) with a clean linffree cloth moistened with cleaning agent (TB 11-003).
7) Inspect seal (5) for correct condition, replace if necessary.
8) Lubricate seal (5) with fuel.
9) Apply Loctite (TB 08-013C) on the threads of bleed body (4) - refer to 20-00-08.
10) Install bleed body (4) on base (1). Torque - refer to 20-00-01.
11) Connect the battery - refer to 24-30-02, and remove the "WARNING" sign.
12) Disconnect the ground cable.
C. Fuel system in fuselage defueling procedure
WARNING : PERFORM DEFUELING IN AREAS WHICH PERMIT FREE MOVEMENT OF FIRE
FIGHTING EQUIPMENT.
THE POWER PLANT MUST NOT BE OPERATED.
DURING THUNDERY WEATHER, DO NOT PERFORM DEFUELING.
DURING ALL BLEEDING OR DEFUELING OPERATIONS, FIRE FIGHTING
EQUIPMENT MUST BE AVAILABLE.
AAAA
Validity : S / N 1 - 9999
Page 302
1 2-1 1 -02
(BA) JUN 02
CAUTION : DURING BLEEDING OR DEFUELING OF THE TANKS AND / OR THE SYSTEM, FUEL HAS TO BE KEPT IN A CONTAINER. DO NOT LEAVE THE FUEL FLOW ON THE GROUND.
1) Connect a ground cable from the aircraft to an approved ground terminal.
2) Disconnect the battery - refer to 24-30-02, and install the following warning sign :
WARNING
MAINTENANCE WORK IN PROGRESS
ON FUEL SYSTEM
DO NOT CONNECT
3) Position a drain container below the fuel system bleed.
4) If one of the tanks is defueled, position the fuel selector on the empty tank.
5) To defuel the system without defueling one of the two tanks, position the fuel selector to "CLOSED" and temporarily loosen the fuel filter bowl to provide the system with an air inlet.
6) Press the bleed button until defueling is completed, then release the button.
7) If the fuel filter bowl has been loosened, tighten it and lockwire.
8) Connect the battery - refer to 24-30-02, and remove the "WARNING" sign.
9) Disconnect the ground cable.
1 - Base
2 - Bleed valve
3 - Sampler
4 - Bleed body
5 - Seal
3
Tank bleeding and defueling - Servicing
Figure 301
WA
Validity : S / N 1 - 9999 1 2- 1 1 -02Page 304
(BA) JUN 02
1 - Base
2 - Bleed valve
3 - Sampler
4 - Bleed body
5 - Seal
6 - Washer
3
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本文链接地址：TB20 MAINTENANCE MANUAL 12 SERVICING TB20飞机维护手册 12 保养(19)
