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A
747-400
MAINTENANCE MANUAL
SEEA BCD
2
OIL TANK CAP
OIL TANK
1
MASTER MAGNETIC CHIP DETECTOR SCUPPER DRAIN LINE
1 ENGINES WITHOUT PW SB 79-65 A FWD
2 ENGINES WITH PW SB 79-65
Engine 0il Change
Figure 301 (Sheet 1)
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747-400
MAINTENANCE MANUAL
FWD
MAGNETIC CHIP
DETECTOR FOR THE
MAIN MAIN GEARBOX
GEARBOX
(REF)
B
MAGNETIC CHIP
DETECTORS FWD
MAIN
AND SCAVENGE LUBRICATION GEARBOX (REF)
OIL PUMP C
Engine Oil Change
Figure 301 (Sheet 2)
E23755
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747-400 MAINTENANCE MANUAL
ANGLE GEARBOX
SEE E
SEGMENT NO. 4 OF THE FAN EXIT LINER
D
FWD
BOLT AND WASHER (2 LOCATIONS)
PLUG
BOTTOM COVER OF THE ANGLE GEARBOX
SEGMENT NO. 4 OF THE FAN EXIT LINER REMOVED FWD
E
L-A4108
Engine Oil Change Figure 301 (Sheet 3)
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747-400 MAINTENANCE MANUAL
S 043-048
WARNING:_______ DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF
THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE
THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE
TO EQUIPMENT.
(1) Do the deactivation procedure for the thrust reverser for ground
maintenance (AMM 78-31-00/201).
S 013-040
(2) Open the fan cowl panels (AMM 71-11-04/201).
S 013-041
(3) Open the core cowl panels (AMM 71-11-06/201).
S 013-042
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reverser halves (AMM 78-31-00/201).
S 493-003
(5)
Put the containers below these three locations:
(a)
The port for the master magnetic chip detector (MCD) on the oil tank
(b)
The drain outlet for the main gearbox
(c)
The lubrication and scavenge oil pump.
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747-400 MAINTENANCE MANUAL
S 683-044
WARNING:_______DO NOT LET HOT OIL TOUCH YOU. LET 5 MINUTES GO BY AFTER AN ENGINE SHUTDOWN TO LET THE OIL SYSTEM PRESSURE GO TO ZERO. IF YOU OPEN THE OIL SYSTEM WHEN IT HAS PRESSURE, A SPRAY OF HOT OIL CAN BURN YOU.
WARNING:_______DO NOT LET THE OIL TOUCH YOUR SKIN FOR A LONG TIME. YOU CAN ABSORB POISONOUS MATERIALS FROM THE OIL THROUGH YOUR SKIN.
CAUTION: IMMEDIATELY CLEAN ALL OIL THAT FALLS ON THE ENGINE PARTS.
_______ THE OIL CAN CAUSE DAMAGE TO THE PAINT AND SOME RUBBER PARTS.
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