737-300 400 500 AMM 飞机维护手册 PNEUMATIC(100)_航空信息_民用航空_通用航空

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E. Put the Airplane Back to Its Usual Condition
S 865-039
(1)
Stop the APU if necessary.

S 865-009

(2)
Remove the pressure from the pneumatic system (AMM 36-05-00/201).

S 025-011

(3)
AIRPLANES WITH ASPIRATED TAT TUBE;
Do the steps that follow:

(a)
Remove the cap from the open end of the aspirated TAT tube.

(b)
Remove the cap from the open boss from the pneumatic manifold duct.

(4)
Close the access doors and panels that were opened for the test.

S 415-040
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36-12-25
ALL ú ú 01 Page 511 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
BLEED AIR PRECOOLER - APPROVED REPAIRS
______________________________________
1. General
A. This procedure contains the task to repair the flanges of the precooler while the precooler is installed on-wing.
TASK 36-12-25-308-001
2. Precooler Flange Repair_______________________
A. Equipment
(1) Flange Reforming Tool, Adams Flange Spider
Adams-Bird, Inc.
5296 Pebbletree Way
San Jose, CA 95111

U. S. A.
B. References
(1) AMM 36-19-15/401 - Ducts
C. Access
(1)
Location Zones
502/503 Fan Cowls - Left Nacelle
504/505 Thrust Reversers - Left Nacelle
602/603 Fan Cowls - Right Nacelle
604/605 Thrust Reversers - Right Nacelle

(2)
Access Panels
5737/5837 Fan Cowl Assy
5738/5838 Thrust Reverser Cowl Assy
5739/5839 Thrust Reverser Cowl Assy
5746/5846 Fan Cowl Assy

D. Procedure
S 018-002
(1)
Get access to the precooler flange that you will repair.

(2)
Use the flange reforming tool and repair the precooler flange.

S 028-004

(3)
If you cannot repair the precooler flange while the precooler is installed, remove the duct or precooler to get access to the damaged flange (AMM 36-19-15/401 or AMM 36-12-25/401).

(a)
Repair the precooler flange with the flange reforming tool.

(b)
Install the duct or precooler (AMM 36-19-15/401 or AMM 36-12-25/401).

S 368-003
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36-12-25
ALL ú ú 01 Page 801 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
PRECOOLER CONTROL VALVE - REMOVAL/INSTALLATION
______________________________________________
1. General
_______
A. This procedure contains two tasks. The first task removes the precooler control valve. The second task installs the precooler control valve.
B. The precooler control valve controls the volume of engine fan air which goes through the bleed air precooler. This fan air is used to decrease the temperature of the bleed air which goes to the main manifold.
C. The precooler control valve is found on the top of the engine core. A coupling attaches the control valve to the inlet duct for the fan air. A compressed contact seal connects the control valve to the bleed air precooler.
TASK 36-12-35-004-001
2. Precooler Control Valve Removal (Fig. 401)
_______________________________
A. References
(1)
AMM 36-05-00/201, Pneumatic System