B.
Consumable Materials

 (1)  
D00098 Fuel, Turbine Engine - P01-001

 (2)  
D50029 Lubricant, Fluorocarbon Release Agent (Spray) - PWC06-005

 C.
Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 203 | 1 | Packing | 49-31-00 | 01 | 65 | 2.......….......…...................................…...........…......….......1

 D.
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

 E.
Prepare for the APU Wet Motoring

 S 862-032
 (1)  
Make sure the APU control switch on the P5 overhead panel is OFF and attach a DO-NOT-OPERATE tag.

 S 862-033

 (2)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P6-2 Main Power Distribution Panel
 1) 6K18, APU ALTN CONT

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A
747-400
MAINTENANCE MANUAL

1. PACKING (QTY 2)
SEE  A  SEE  C  FWD  FLOW DIVIDER AND DUMP VALVE 4. 
APU COMPARTMENT SEE  B  FWD  TRANSFER TUBE 3. 
PRESSURE FUEL2. 
A  1 TUBE 

CABLE IGNITION5. 
IGNITION EXCITER 6.  CASE GAS GENERATOR 
D95006 (P6) CONNECTOR, ELECTRICAL7.  CHAMBER DRAIN VALVE COMBUSTION8. 
FWD  B  2 TUBE DRAIN9. 
FWD 
1 2  TUBE WHEN YOU DO THE APU WET MOTORING DO NOT DISCONNECT THE FUEL PRESSURE TUBE WHEN YOU DO THE APU DRY MOTORING DO NOT DISCONNECT THE DRAIN  C 

APU Motoring Procedure
Figure 203

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
F55841
A
747-400 MAINTENANCE MANUAL
 (b)  P83 Aft APU Equipment Control and Circuit Breaker Panel 1) APU PRIME CONT
 S 012-034
 (3)  
Open the left APU access door, 317AL, and right APU access door, 318AR:

 (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.
　
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