EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. TURBINE DRIVE UNITS WITH IN-LINE AIR ú
29-11-15
FILTERS ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 205Feb 18/02
A
747-400 MAINTENANCE MANUAL
SHUTOFF/SPEED CONTROL VALVE
PRESSURE TUBE FOR THE SPEED CONTROL AIR
IN-LINE FILTER FOR THE SPEED CONTROL VALVE
1
UNION
PACKING
PACKING
WATER SEPARATOR HOUSING FOR THE SPEED CONTROL VALVE
1 INSTALLED AT THE CONNECTION TO THE SOLENOID VALVE ASSEMBLY. THE IN-LINE AIR FILTER IS A-A BLEED HOLE
SHUTOFF/SPEED CONTROL VALVE
TEE FITTING
TEE FITTING
MOUNTING BOLT FWD
(2 LOCATIONS) SHUTOFF AND
WATER SEPARATOR FOR THE SHUTOFF VALVE MODULAR SUPPLY TUBE
C
In-line Air Filter and Water Separator Installation
Figure 201 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-15
ALL ú ú 01 Page 206 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
E VALVE ACTUATOR SEE SPEED CONTROL PRESSURE LINE CONTROL AIR
B PORT GOVERNOR SEE D
B (CONTAINS FINE CYLINDRICAL ELEMENT) CORRUGATED AND WATER SEPARATOR ACTUATOR AIR FILTER SPEED CONTROL VALVE
FWD
D
O-RING O-RING ELEMENT FILTER CONTROL VALVE UNIT SHUTOFF AND SPEED B LINE PRESSURE AIR CONTROL ACTUATOR VALVE CONTROL SPEED
SCREEN B
B-B (TYPICAL) HOUSING WATER SEPARATOR AIR FILTER AND E MESH ELEMENT) SMOOTH CYLINDRICAL SEPARATOR (CONTAINS AIR FILTER AND WATER SHUTOFF VALVE ACTUATOR ACTUATOR VALVE SHUTOFF
In-line Air Filter and Water Separator Installation Figure 201 (Sheet 3)
K07593
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. TURBINE DRIVE UNITS WITHOUT IN-LINE AIR ú
29-11-15
FILTERS ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 207Feb 15/99
A
747-400
MAINTENANCE MANUAL
(2)
Access Panel
454A Trailing Edge Fairing Doors - System 1
484A Trailing Edge Fairing Doors - System 4
C.
Procedure
S 012-045
(1)
Open the fairing doors on the trailing edge of the applicable strut (AMM 54-62-00/201).
S 862-046
(2)
Release the pressure in the pneumatic system (AMM 36-00-00/201).
S 032-094
CAUTION:_______REMOVE THE TUBE CONNECTION CAREFULLY. THE FILTER MAY DROP OUT OF THE TUBE AND RESULT IN DAMAGE TO THE FILTER.
(3)
Disconnect the speed control air pressure line from the union on the speed control valve water separator housing.
S 022-091
(4)
Remove the In-Line Air Filter from the speed control air pressure tube.
S 022-089
(5)
Remove the two mounting bolts and washers, and move the clamp bracket to the side.
S 022-047
(6)
Remove the water separator for the speed control valve:
(a)
Remove the two bolts and the washers.
(b)
Move the clamp bracket to the side.
(c)
Remove the water separator for the speed control valve.
