S 024-005-N00
(4)
While you hold the MCD probe (4, 12, or 20) in, turn the MCD probe counterclockwise until it stops.
S 024-006-N00
(5)
Pull the MCD probe (4, 12, or 20) straight out.
S 214-007-N00
(6)
Examine the MCD probe (AMM 79-21-10/601).
S 034-008-N00
(7)
Install the protection caps.
TASK 79-21-10-004-009-N00
3. Remove the Magnetic Chip Detector Housing (Fig. 401)_________________________________________
A. Standard Tools and Equipment
(1)
Container - 5 U.S. gallon (19 liter) minimum
capacity, used to catch the oil
B.
References
(1)
IPC 72-61-00 Fig. 10
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
79-21-10
ALL ú ú N02 Page 406 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)
IPC 79-11-01 Fig. 10
(3)
IPC 79-21-04 Fig. 1
C.
Access
(1)
Location Zone
412 Engine 1 - Main Gearbox Aft Face 6 o'clock Main Gearbox Fwd Face 6 o'clock Bottom of Oil Tank
422 Engine 2 - Main Gearbox Aft Face 6 o'clock Main Gearbox Fwd Face 6 o'clock Bottom of Oil Tank
432 Engine 3 - Main Gearbox Aft Face 6 o'clock Main Gearbox Fwd Face 6 o'clock Bottom of Oil Tank
442 Engine 4 - Main Gearbox Aft Face 6 o'clock Main Gearbox Fwd Face 6 o'clock Bottom of Oil Tank
(2)
Access Panel
415 Left Thrust Reverser Half - Engine 1
416 Right Thrust Reverser Half - Engine 1
425 Left Thrust Reverser Half - Engine 2
426 Right Thrust Reverser Half - Engine 2
435 Left Thrust Reverser Half - Engine 3
436 Right Thrust Reverser Half - Engine 3
445 Left Thrust Reverser Half - Engine 4
446 Right Thrust Reverser Half - Engine 4
D.
Procedure
S 014-010-N00
(1)
Do the task: "Remove the Magnetic Chip Detector Probe".
S 024-049-N00
(2)
Remove the magnetic chip detector housing as follows:
(a) Put the container below the applicable drain port.
WARNING: BEFORE YOU OPEN THE OIL TANK CAP, PERMIT A MINIMUM OF FIVE
_______ MINUTES AFTER THE ENGINE SHUTDOWN TO LET THE PRESSURE IN THE OIL TANK BLEED OFF. A FAST FLOW OF HOT OIL CAN OCCUR AND CAUSE INJURY TO YOU.
DO NOT KEEP THE OIL ON YOUR SKIN FOR A LONG TIME. IF YOU DO NOT CLEAN THE OIL OFF, THE OIL CAN CAUSE INJURY.
CAUTION: IF YOU DO NOT CLEAN THE OIL OFF, THE OIL CAN CAUSE A STAIN
_______
ON YOUR CLOTHES AND PAINT WILL BECOME SOFT.
(b)
Loosen the oil tank cap.
(c)
Remove the lockwire from the housing.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
79-21-10
ALL ú ú N02 Page 407 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
WARNING:_______BE CAREFUL WHEN YOU DRAIN OIL FROM A HOT ENGINE. HOT OIL IS DANGEROUS. IF IT TOUCHES YOUR SKIN OR YOUR EYES, IT WILL CAUSE INJURY.
CAUTION: WHEN YOU REMOVE THE VALVE THAT IS IN THE MAIN GEARBOX,
_______
HOLD THE GEARBOX WITH A WRENCH.
(d)
Put a wrench on the flats of the housing and remove the housing.
(e)
Discard the packing (2) from the MCD housing (1).
NOTE: The assembly packing is next to the hex of the housing.
____
(f)
Tighten the oil tank cap.
(g)
Install the protection caps.
E.
Remove the probe packing and the housing packing (Fig. 402)
S 034-043-N00
(1)
Do the steps that follow to remove the probe packing:
(a)
Remove the magnetic probe (4, 12, or 20).
(b)
Remove and discard the packing (19) that is on the probe.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 滑油 OIL(74)
