TASK 29-11-15-402-037
 9.  Shutoff Valve In-line Air Filter Installation (For Turbine Drive Units With___________________________________________________________________________ In-Line Air Filters) (Fig. 201).____________________
 A.  References
 (1)  
AMM 54-62-00/201, Nacelle Strut Access Panels

 (2)  
IPC 29-11-41 Fig. 1

 B.  
Access

 (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

 C.  
Procedure

 S 422-061
 (1)  
Install the in-line air filter for the shutoff valve:

 (a)  
Put the in-line air filter in the supply port tube for the shutoff valve.

 (b)  
Connect the elbow to the supply port tube for the shutoff valve.

 (c)  
Connect the other end of the elbow to the solenoid valve assembly.

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 29-11-15
 ALL  ú ú 01 Page 212 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 212-096
 (2)  Check Shutoff Valve in-line air filter connections for leaks (AMM 29-11-15/201 - Water Separator and Air Filter Installation Inspection).
 S 412-062
 CAUTION: MAKE SURE YOU LATCH THE FAIRING DOORS ON THE TRAILING EDGE
_______ CORRECTLY. DAMAGE CAN OCCUR IF THE DOORS OPEN DURING A FLIGHT.
 (3)  Close the fairing doors on the trailing edge of the applicable strut (AMM 54-62-00/201).
 TASK 29-11-15-102-058
 10. Clean an Air Filter (Applies ONLY to Turbine Drive Units without In-Line Air
___________________
 Filter).

 A. Standard Tools and Equipment
 (1)  
Compressed Air Source - 30 psig maximum

 (2)  
Low Frequency Sonic Cleaner

 B.
Consumable Materials

 (1)  
B00156 Detergent - Household or equivalent

 C.
Procedure

 S 032-059
 (1)  Do the Air Filter Removal procedure.
 S 112-063
 (2)  Clean the filter: (a) Put the filter in a strong solution of the detergent and hot water (160-180 °F) for approximately 2 hours. (b) Remove the filter from the detergent solution. (c) Fully flush the filter.
 S 132-064
 (3)  Clean the filter in the sonic cleaner: (a) Put the filter in the cleaner tank. (b) Put a sufficient quantity of clean detergent solution in the tank.
 (c) (d) (e)  Operate the cleaner for a minimum of 30 minutes.Remove the filter from the cleaner tank.Fully flush the filter.
 S 162-065
 (4)  Dry the filter with the compressed air.
 S 112-066
 (5)  If it is necessary, do the steps to clean the filter again.

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 29-11-15
 ALL  ú ú 01 Page 213 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 432-067
 (6)  Do the Air Filter Installation procedure.
 TASK 29-11-15-202-075
 11. Water Separator and Air Filter Installation Inspection (Fig. 201)
__________________________________________________________________
 A. Special Tools and Equipment
 (1)  
ME60B00158 Air-Driven Hydraulic Pump Muffler

 B.
Consumable Materials

 (1)  
G00095 Detector - Leak, Leak Tek (160X)

 C.
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 36-00-00/201, Pneumatic System

 (3)  
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)  
　
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