S 024-014
 (3)  
Remove the oil filter (4) for the turbine drive:

 (a)  
Remove the filter cap (1), the packing (2), and the spring (3).

 (b)  
Remove the oil filter (4) from the turbine drive gearbox.

 (c)  
Discard the oil filter (4) and the packing (2).

 S 494-005
 (4) Install a cover on the oil filter port to prevent contamination.
 TASK 29-11-14-404-006
 3. Turbine Drive Oil Filter Installation (Fig. 401)
_____________________________________
 A. Consumable Materials
 (1)  
D00071 Oil - Aircraft Turbine Engine Lubricating, MIL-L-7808 (optional to MIL-L-23699)

 (2)  
D00068 Oil - Aircraft Turbine Engine Lubricating, MIL-L-23699 (optional to MIL-L-7808)

 B.
Parts

 ~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Filter Cap | 29-11-41| 01 | 615 | | | 2 | Packing | | | 610 | | | 3 | Spring | | | 620 | | | 4 | Oil Filter | | | 625 | 2......…........…...................................…..........….....….........1
 C. References
 (1)  
AMM 12-13-09/301, Air-Driven Pump Turbine Drive

 (2)  
AMM 54-62-00/201, Nacelle Strut Access Panels

 D.
Access

 (1)  
Location Zone
 454 System 1 - Strut Aft Fairing
 484 System 4 - Strut Aft Fairing

 (2)  
Access Panel 454AR Trailing Edge Fairing Door, RH - System 1 484AR Trailing Edge Fairing Door, RH - System 4

 E.
Procedure

 (1)  
Remove the cover from the oil filter port.

 S 094-007
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 424-008
 (2)  Install new oil filter (4) for the turbine drive:
 NOTE:____You must install a new oil filter. The old filter is not cleanable. It should be discarded.
 (a)  
Make sure the filter cap (1) is clean.

 (b)  
Lubricate the new packing (2) with engine oil.

 (c)  
Install the packing (2) on the filter cap (1).

 (d)  
Install the oil filter (4) and the spring (3) in the oil filter port.

 (e)  
Install the filter cap (1), threads lubricated with engine oil, in the turbine drive unit.

 (f)  
Install a lockwire between the filter cap (1) and the relief valve.

 (g)  
Remove the magnetic oil drain plug from the ADP turbin drive and allow oil to drain into a container.

 (h)  
Inspect and clean the magnetic oil drain plug.

 (i)  
Reinstall the magnetic oil drain plug and secure with lockwire.

 S 614-011
 (3)  
Fill the oil system for the turbine drive (AMM 12-13-09/301).

 S 214-016

 (4)  
Check the turbine drive general area for oil leaks.

 S 414-013
 CAUTION: MAKE SURE YOU LATCH THE FAIRING DOORS ON THE TRAILING EDGE
_______ CORRECTLY. DAMAGE CAN OCCUR IF THE DOORS OPEN DURING A FLIGHT.
 (5)  Close the right fairing door on the trailing edge of the strut (AMM 54-62-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-14
 ALL  ú ú 01 Page 404 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 TURBINE DRIVE AIR FILTER AND WATER SEPARATOR - MAINTENANCE PRACTICES
____________________________________________________________________
　
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