747-400 AMM 飞机维护手册 动力装置 POWER PLANT 1(120)

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 (30) Disconnect the hydraulic lines with the steps that follow (Fig. 407, view H):
 (a)  Disconnect the hydraulic supply line (33) to let the hydraulic fluid drain into the applicable container. 1) Install the protection caps on the hydraulic supply
 line (33) and the mating connector.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FIRE4.EXTINGUISHINGFLEX LINE
DRAIN LINE FOR 3.SEE B THE MAIN STRUT 5. HOSE DRAIN LINE ELBOW FOR2.
THE LEFT FORWARD MOUNTSEE E
DRAIN LINE FOR THE 1.LEFT FORWARD MOUNTSEE D SEE A
PRECOOLERSEE H
SEE F INLET DUCT
SEE C
SEE G
SEE I
LEFT RACEWAY 6.DRAIN LINE
1ELECTRICAL CONNECTORS IDENTIFICATION
MATING RECEPTACLES
INDEX

FWD
CONNECTORSTRUT NUMBER ELECTRICAL
NO.
PLUG
1
CONNECTORS
12 3
4 14
A
12 10
D8510JD8520J D8530J D8540J
D4230P
8
D8415J D8425J D8435J D8445J
D4154P
9
9
10

D8516J D8526J D8536J D8546J
D4208P
8
12

D8410J D8420J D8430JD8440J
D4216P D8411JD8421J D8431J D8441J
D4232P
14 SEAL17.
 PRECOOLER 15.16. CLAMP 5. HOSEPRECOOLERD8515JD8525JD8535JD8545J
D8515P
25
INLET DUCT
26

D8514J D8524J D8534JD8544J
D8336P D8414J D8424J D8434J D8444J
D8320P
27D8413J D8423J D8433J D8443J
D4224P
28 D8352J D8358J D8354J D8356J
D8360P
27A D8362J D8368J D8364JD8366J
D8350P
28A
2  MAKE SURE THE LOCK BOLT DOES NOTEXTEND MORE THAN THE TOP OF THECLAMPDUCT INTO THE FAN COWL PANEL SEAL FWD
C
FWD
B
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Power Plant Disconnect Points
Figure 407 (Sheet 1)

H14801
FAN COWL PANEL WASHER21.28A ELECTRICALCLAMP19.
CONNECTORS2 27A
1
NUT
20.28

 STATIC 29.ELECTRICAL
PRESSURECONNECTORS
SEAL18.HOSE FOR27
1  THE EEC CLAMP19.
 ELECTRICAL
25.2

BRACKETCONNECTOR FWD
1
BOLT22.
 ELECTRICAL 26.CONNECTOR
SEAL 18.1
WASHER 23.FWD
THERMAL ANTI-ICE
24.(TAI) DUCT

E
FWD
D F
ELBOW FOR THE 31.
RIGHT FORWARD 34. HYDRAULIC
MOUNT DRAIN LINE DRAIN LINE

HYDRAULIC 33.
SUPPLY
RIGHT FORWARD 30.
LINE
LINE HOSE

MOUNT DRAIN  35. FUEL SUPPLY
CLAMP 37.38. SEAL 39. STARTERSEE J
DUCT
HYDRAULIC
32.PRESSURE

SEAL38.
LINE  AFT LOWERENGINE MOUNT 37. CLAMP
RIGHT RACEWAY
36.DRAIN LINE

DRAIN LINE 3.FOR THEMAIN STRUT FWD FWD FWD
I
G H
Power Plant Disconnect Points
Figure 407 (Sheet 2)

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
RIGHT RACEWAY
GROOVE FOR PACKING
A
34. HYDRAULIC DRAIN LINE
36. RIGHT RACEWAY DRAIN LINE
40. PACKING
35. FUEL SUPPLY HOSE 
41. RETAINER  A  J  STRUT 
RING  STRUT  TUBE FUEL 
PIN  FUEL 
(3 LOCATIONS)  TUBE  41. RETAINER 
RING 

RESTRICTION PIN
COLLAR (3 LOCATIONS)
32. FUEL SUPPLY HOSE
40. PACKING
40. PACKING
STRUT RACEWAY CONNECTOR (ASSEMBLED VIEW SHOWN) STRUT RACEWAY CONNECTORA-A 4 (ASSEMBLED VIEW SHOWN)
　
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