79-21-10
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 966-023-N00
(2) If the MCD probe does not operate correctly, replace the MCD probe (AMM 79-21-10/401).
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MAGNETIC CHIP DETECTOR - CLEANING/PAINTING
__________________________________________
1. General_______
A. This procedure gives the instructions to clean the magnetic chip detector (MCD).
B. There are six MCD's installed in the locations that follow:
(1)
The drain port on the main gearbox
(2)
The drain port on the oil tank (master MCD)
(3)
The housing for the lubrication and scavenge oil pump (4 locations)
(a)
The scavenge oil inlet for the No. 3 bearing
(b)
The scavenge oil inlet for the No. 4 bearing
(c)
The scavenge oil inlet for the angle gearbox
(d)
The scavenge oil inlet for the No. 1, 1.5, and 2 bearing
C.
You can get access to the MCD's through the applicable thrust reverser.
TASK 79-21-10-107-001-N00
2. Clean the Magnetic Chip Detector (Fig. 701)________________________________
A. Consumable Materials
(1)
G00834 Cloth - Cotton, Lint-Free
(2)
B00722 Solvent - Stoddard, P-D-680 Type II
B.
References
(1)
AMM 79-21-10/401, Magnetic Chip Detector
(2)
AMM 79-21-10/601, Magnetic Chip Detector
(3)
IPC 72-61-00 Fig. 10
(4)
IPC 79-11-01 Fig. 10
(5)
IPC 79-21-04 Fig. 1
C.
Access
(1)
Location Zones
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
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
ANGLE GEARBOX
MAGNETIC
CHIP DETECTOR
SEE D
NO. 3 BEARING
MAGNETIC NO. 4 BEARING NO. 1,1.5, AND 2
CHIP DETECTOR MAGNETIC BEARING MAGNETIC
MAGNETIC CHIP SEE D CHIP DETECTOR CHIP DETECTOR
DETECTORS SEE D SEE D
SEE A B
MAIN
GEARBOX
INTEGRATED DRIVE GENERATOR (REF) SCAVENGE OIL PUMP LUBRICATION AND (REF)
FWD
A
FWD (REF) GEARBOX MAIN B DSEE MAGNETIC CHIP DETECTOR MAIN GEARBOX
Figure 701 (Sheet 1) Magnetic Chip Detector Cleaning
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SEE C
MAIN OIL TANK
GEARBOX MASTER MAGNETIC
(REF) ENGINE OIL CHIP DETECTOR
TANK SEE D
FWD
C
PACKING
MAGNETIC CHIP DETECTOR HOUSING PORTMAGNETIC CHIP (REF)
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本文链接地址：747-400 AMM 飞机维护手册 滑油 OIL(82)
