(a)
While you hold the two APU access doors in the closed position, open the six latches on the right access door.
NOTE: The left access door will open fully and the right
____ access door will drop approximately one inch (2.5 cm) from the fuselage frame when the last latch is opened.
NOTE: A lanyard is attached to the aft end of the right access
____ door to hold the access door to the APU compartment bulkhead.
CAUTION: BE CAREFUL NOT TO MOVE THE TWO APU ACCESS DOORS TO THE
_______ OUTBOARD SIDE FROM THE FULL OPEN POSITION. THE FULL OPEN POSITION IS WHERE THE APU ACCESS DOOR IS DOWN AND THE TWO HOLD-OPEN RODS ARE CONNECTED TO THE TWO BRACKETS ON THE APU COMPARTMENT BULKHEAD. DAMAGE TO THE ELEVATOR CONTROL SURFACES CAN OCCUR.
(b)
Open the left access door to the fully open position and remove the two hold-open rods from the two clips.
(c)
Remove the two quick-release pins from the two brackets on the left APU compartment bulkhead.
(d)
Connect the two hold-open rods from the left access door to the two brackets and install the two quick-release pins.
(e)
Push the right access door up and remove the lanyard from the pin on the aft APU compartment bulkhead.
(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.
Differential Pressure Indicator Removal
S 024-005
(1)
Do these steps to remove the differential pressure indicator (3):
(a)
Remove the differential pressure indicator (3).
(b)
Remove the two packings (1), (2). 1) Discard the two packings (1), (2).
(c)
Make sure you install all necessary protection covers.
TASK 49-94-04-404-008
3. Oil Filter Differential Pressure Indicator Installation (Fig. 401)
_______________________________________________________
A. Consumable Materials
(1)
Lockwire, Corrosion Resistant Steel (0.025 Inch Diameter) - QQ-W-390
(2)
D00418 Oil - Aircraft Turbine Engine
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A
747-400
MAINTENANCE MANUAL
SEE B
FWD
SEE A FWD
APU COMPARTMENT A
COVER FOR THE
OIL FILTER
ELEMENT
OIL FILTER HOUSING
FUEL-COOLED
OIL COOLER
1.
PACKING
2.
PACKING
ADAPTER
3. OIL FILTER DIFFERENTIAL
PRESSURE INDICATOR
(VIEW IN THE AFT DIRECTION)
B
Oil Filter Differential Pressure Indicator Installation Figure 401
L46788
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
B. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Packing | 49-94-04 | 01 | 10 | | | 2 | Packing | | | 15 | | | 3 | Oil Filter Differential Pressure | | | 5 | | | | Indicator | | | | 2.......….......…...................................…...........…......….......1
C. Access
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