29-11-08
ALL ú ú 07 Page 412 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-063
(11) Remove electrical power if it is not necessary for other operations (AMM 24-22-00/201).
TASK 29-11-08-404-108
5. Air-Driven Pump Turbine Drive Installation for System 1 With Auxiliary______________________________________________________________________ Hydraulic Pump and System 4 (Fig 402)___________________________
A. Special Tools and Equipment
(1)
ME60B00158 Air-Driven Hydraulic Pump Muffler
B.
Consumable Materials
(1)
D00013 Grease, MIL-G-23827
(2)
D00071 Oil - Aircraft Turbine Engine Lubricating, MIL-L-7808 (optional to MIL-L-23699)
(3)
D00068 Oil - Aircraft Turbine Engine Lubricating, MIL-L-23699 (optional to MIL-L-7808)
(4)
D00153 Fluid - Hydraulic, Fire-Resistant BMS 3-11
(5)
G00095 Detector - Leak, Leak Tek (160X)
C.
References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 12-13-09/301, Air-Driven Pump Turbine Drive
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 29-11-17/401, Air-Driven Pump
(5)
AMM 29-21-01/401, Auxiliary AC Motor-Driven Hydraulic Pump
(6)
AMM 36-00-00/201, Pneumatic System
(7)
AMM 54-62-00/201, Nacelle Strut Access Panels
D.
Access
(1)
Location Zones
454 System 1 - Strut Aft Fairing
484 System 4 - Strut Aft Fairing
(2)
Access Panels
454A Trailing Edge Fairing Doors - System 1
484A Trailing Edge Fairing Doors - System 4
E.
Procedure
(1)
Remove the cover from the pneumatic duct.
S 094-065
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29-11-08
ALL ú ú 07 Page 413 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 404-113
(2) Install the seal back on the flange of the turbine exhaust cascade. S 424-066
CAUTION:_______ BE CAREFUL WITH THE TURBINE DRIVE DURING THE INSTALLATION. A
ROUGH MOVEMENT CAN CAUSE DAMAGE TO THE DRIVE UNIT OR THE
AIRPLANE STRUCTURE. A ROUGH MOVEMENT OF THE TURBINE DRIVE CAN
CAUSE OIL TO FLOW AROUND THE SHAFT SEAL AND COLLECT IN THE
EXHAUST SCROLL.
(3)
Install the turbine drive (2):
(a)
Carefully lift the turbine drive (2) into its position on the aft strut bulkhead.
(b)
Use the forward mounting hooks to hold the turbine drive (2).
(c)
Lubricate the bolts (24 and 26) and the bushing (25) with grease.
(d)
Install the bolt (24) through the strut bulkhead and the right forward mounting flange.
(e)
Install the bushing (25) on the bolt (26) with the hole adjacent to the bolt head.
(f)
Install the bolt (26) through the strut bulkhead and the left forward mounting flange.
(g)
Do not tighten the bolts.
NOTE: The bolts go into the nut plates on the aft bulkhead.
____
(h)
Hold the turbine drive (2) and install the mounting bracket (10) with the bolts (18) and the washers (19).
(i)
Attach the left side support strut of the bracket (10) to the bulkhead with the bolt (12) and the washer (11).
(j)
Make sure the turbine drive (2) aligns correctly with the pneumatic duct. 1) Adjust the length of the right support rod (17) if it is
necessary to correctly align the turbine drive (2).
(k)
Install the bolts (22), the nuts (20), and the washers (21) for each support rod (17).
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