(a)
The union (23) and the packing (24) from the reducer on the water separator 1) Discard the packing.
(b)
The elbow (40), the jam nut (41), and the packing (42) from the pressure port on the shutoff valve actuator 1) Discard the packing.
(c)
The shutoff supply tube (36)
(d)
The shutoff and modulator supply tube (35)
(e)
The jam nuts (39), the tee fittings (37) and the packings (38) 1) Discard the packings.
(f)
The jam nut (33), the 45° elbow (32), and the packing (34) 1) Discard the packing.
(g)
The union (23) and the packing (24).
1) Discard the packing.
S 494-017
(5) Install caps on all the tubes, the ports, and the ducts to prevent contamination.
TASK 29-11-09-404-018
3. Shutoff and Speed Control Valve Unit Installation (Fig. 401)_________________________________________________
A. Special Tools and Equipment
(1)
ME60B00158 Air-Driven Hydraulic Pump Muffler
B.
Consumable Materials
(1)
D00071 Oil - Aircraft Turbine Engine Lubricating, MIL-L-7808 (optional to MIL-L-23699)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C.
D.
E.
A
747-400
MAINTENANCE MANUAL
(2)
D00068 Oil - Aircraft Turbine Engine Lubricating, MIL-L-23699 (optional to MIL-L-7808)
(3)
G00095 Detector - Leak, Leak Tek (160X)References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 29-11-08/401, Air-Driven Pump Turbine Drive
(3)
AMM 36-00-00/201, Pneumatic System
(4)
AMM 54-62-00/201, Nacelle Strut Access Panels
(5)
IPC 29-11-41 Fig. 1Access
(1)
Location Zone 454 System 1 - Strut Aft Fairing 484 System 4 - Strut Aft Fairing
(2)
Access Panel 454A Trailing Edge Fairing Doors - System 1 484A Trailing Edge Fairing Doors - System 4
Procedure
S 094-046
(1)
Remove the caps from all the hoses, the ports, and the ducts.
S 434-019
(2)
If a new shutoff and speed control valve is to be installed, install these parts:
NOTE: The lubricant must be applied to the threads on the
____
fittings and the packings when you install them.
(a)
The packing (24) on the union (23)
(b)
The union (23) in the governor pressure port
(c)
The jam nut (33) and the packing (34) on the 45° elbow (32)
(d)
The elbow (32) in the actuator for the speed control valve
1) Do not tighten the jam nut until the elbow aligns with its tube connection.
(e)
The jam nuts (39) and the packings (38) on the tee fittings (37).
(f)
The tee fittings (37) in the actuator port and the water separator port 1) Do not tighten the fittings until they align with their
tube connections.
(g)
The shutoff and modulator supply tube (35)
(h)
The shutoff supply tube (36)
(i)
The jam nut (41) and the packing (42) on the elbow (40)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-09
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(j)
The elbow (40) in the pressure port for the shutoff valve actuator 1) Do not tighten the elbow until it aligns with its tube
connection.
(k)
The packing (24) on the union (23)
(l)
The union (23) in the water separator reducer.
S 424-047
(3)
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