(3)
AMM 36-00-00/201, Pneumatic System
(4)
AMM 54-62-00/201, Nacelle Strut Access Panels
(5)
IPC 29-11-01 Fig. 1 (Outboard), IPC 29-11-01 Fig. 5 (Inboard)
C.
Access
(1)
Location Zone
454 System 1 - Strut Aft Fairing
464 System 2 - Strut Aft Fairing
474 System 3 - Strut Aft Fairing
484 System 4 - Strut Aft Fairing
(2)
Access Panel
454A Trailing Edge Fairing Doors - System 1
464A Trailing Edge Fairing Doors - System 2
474A Trailing Edge Fairing Doors - System 3
484A Trailing Edge Fairing Doors - System 4
D.
Procedure
S 014-002
(1)
Open the fairing doors on the trailing edge of the strut (AMM 54-62-00/201).
(2)
Release the pressure in the hydraulic system (AMM 29-11-00/201).
(3)
Release the pressure in the pneumatic system (AMM 36-00-00/201).
S 864-003
S 864-004
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29-11-02
ALL ú ú 01 Page 401 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
FWD
HYDRAULIC RESERVOIR SEE A
SIGHT GLASS
A
SIGHT GLASS A VALVE SAMPLE
FWD
DRAIN VALVE TRANSMITTER FOR THE HYDRAULIC FLUID QUANTITY RESERVOIR PORT RESERVOIR VALVE SAMPLE
A
PACKING VALVE OUTLET VALVE KNOB
A-A
Figure 401 Reservoir Fluid Sample Valve
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29-11-02
ALL ú ú 01 Page 402 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 864-005
(4)
Operate the bleed valve on the reservoir pressurization module to release the pressure in the reservoir (AMM 29-17-01/201).
S 494-021
(5)
Put the container below the drain valve on the hydraulic fluid reservoir.
S 684-006
(6)
Drain the reservoir fluid into the container to a level below the hydraulic sample valve.
S 024-007
(7)
Remove the hydraulic sample valve:
(a)
Remove the hydraulic sample valve from the reservoir port. 1) Discard the packings.
(b)
Install a cap on the reservoir port to prevent contamination.
TASK 29-11-02-404-009
3. Reservoir Sample Valve Installation (Fig. 401)
___________________________________
A. Consumable Materials
(1)
D00153 Fluid - Hydraulic, Fire-Resistant, BMS 3-11
B.
References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 36-00-00/201, Pneumatic System
(3)
AMM 54-62-00/201, Nacelle Strut Access Panels
(4)
IPC 29-11-01 Fig. 1 (Outboard), IPC 29-11-01 Fig. 5 (Inboard)
C.
Access
(1)
Location Zone
454 System 1 - Strut Aft Fairing
464 System 2 - Strut Aft Fairing
474 System 3 - Strut Aft Fairing
484 System 4 - Strut Aft Fairing
(2)
Access Panel 454A Trailing Edge Fairing Doors - System 1 464A Trailing Edge Fairing Doors - System 2 474A Trailing Edge Fairing Doors - System 3 484A Trailing Edge Fairing Doors - System 4
D.
Procedure
S 424-022
(1)
Install the hydraulic sample valve:
(a)
Remove the cap from the reservoir port.
(b)
Lubricate the new packings with hydraulic fluid.
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