(f)  
Open the right access door to the fully open position and remove the two hold-open rods from the two clips.

 (g)  
Remove the two quick-release pins from the two brackets on the right APU compartment bulkhead.

 (h)  
Connect the two hold-open rods from the right access door to the two brackets and install the two quick-release pins.

 C.
Low Oil Pressure Switch Removal

 S 024-019
 (1)  
Do these steps to remove the low oil pressure switch (2):

 (a)  
Disconnect the electrical connector D95007 (P7) from connector J7.

 NOTE: The electrical connector D95007 (P7) is installed on a
____ bracket at the fuel pump cover plug. You disconnect the electrical connector D95007 (P7) from connector J7 to get access to electrical connector D95007A (P7A).
 (b)  
Disconnect the electrical connector D95007A (P7A) (1) from the low oil pressure switch (2).

 (c)  
Remove the low oil pressure switch (2) from the oil sensor housing.

 (d)  
Remove the packing (3) from the low oil pressure switch (2). 1) Discard the packing (3).

 (e)  
Make sure you install all necessary protection covers.

 TASK 49-94-02-404-009
 3.  Low Oil Pressure Switch Installation (Fig. 401)____________________________________
 A. Consumable Materials
 (1)  
D00418 Oil - Aircraft Turbine Engine

 B.
Parts

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 49-94-02
 ALL  ú ú 02 Page 402 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
FWD
SEE A
APU COMPARTMENT
FWD
SEE B
A
OIL SENSOR HOUSING
3.  PACKING
2.  LOW OIL
PRESSURE

1.  ELECTRICAL SWITCH
CONNECTOR,
D95007A (P7A)
FWD
B
Low Oil Pressure Switch Installation
Figure 401

F59088
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 49-94-02
 ALL  ú ú 05 Page 403 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 2 | Low Oil Pressure Switch | 49-94-02 | 01 | 25 | | | 3 | Packing | | | 30 | 2.......….......…...................................…...........…......….......1
 C. Access
 (1)  
Location Zones 221 Control Cabin - Left 222 Control Cabin - Right 310 Fuselage - Station 2360 to Station 2792

 (2)  
Access Panels
 317AL APU Access Door - Left
 318AR APU Access Door - Right

 D.
Procedure

 S 424-022
 CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY.
_______ IF YOU DO NOT REMOVE THE PROTECTION COVERS, DAMAGE TO THE APU CAN OCCUR.
 (1)
Do these steps to install the low oil pressure switch (2):

 (a)  
Lubricate the new packing (3) with a light coat of oil.

 (b)  
Install the packing (3) on the low oil pressure switch (2).

 (c)  
Install the low oil pressure switch (2) in the oil sensor housing. 1) Tighten the low oil pressure switch (2) to 65-75

 inch-pounds (7.3-8.5 newton-meters).

 (d)  
Do these steps to connect the electrical connector D95007A (P7A) (1) to the low oil pressure switch (2):

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 49-94-02
 ALL  ú ú 04 Page 404 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
中國(guó)航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 機(jī)載輔助動(dòng)力 2(160)