28.
SCREW
(HOLDS TUBE (24))
27. CLAMP
(HOLDS
TUBE (23))
I
Engine Bleed Air Recooler Installation Figure 401 (Sheet 5)
28. SCREW
27. CLAMP (HOLDS TUBE (26))
1. PRECOOLER
27. CLAMP (HOLDS TUBE (24))
3. WASHER
29. NUT
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28. SCREW
27. CLAMP (HOLDS WIRE BUNDLE)
27. CLAMP (HOLDS TUBE (26))
1. PRECOOLER
3. WASHER
29. NUT
3.
WASHER
4.
NUT
3.
WASHER
4.
NUT
27. CLAMP (TYP)
747-400
MAINTENANCE MANUAL
27. CLAMP
(HOLDS
TUBE (24))
36.
SCREW
28. SCREW
36. SCREW
37.
BRACKET
1. PRECOOLER
J
TUBE (REF)
38. CLAMPSHELL HALF
CLAMPSHELL HALVES ARE THE SAME AND TUBE (REF)
FIT TOGETHER
CLAMPSHELLS FIT ON A TUBE AND HOLD WITHOUT A CLAMP
Engine Bleed Air Precooler Installation
Figure 401 (Sheet 6)
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747-400 MAINTENANCE MANUAL
(c)
Remove the tee (30), jamnut (31), and O-ring (32) from the lower corner of the forward left side of the precooler. 1) Discard the O-ring (32).
(d)
Remove the bushing (20), barrel nut (19), and barrel nut retainer (18) from the upper corner of the forward left side of the precooler.
TASK 36-12-01-404-020
3. Install the Precooler (Fig. 401)_____________________
A. Equipment
(1) A36001-45, Tool - Precooler Removal/Installation Equipment
B. Consumable Materials
(1)
D01062, Never-Seez, Pure Nickel Special, NSBT-8N
(High temperature anti-seize compound)
(2)
G00095, Detector - Leak, Leak-Tek (160X)
(3)
D00062, Lubricant - Pneumatic System Thread, FS 1292 (Fluor-Silicone) MIL-G-4343
C. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 36-12-04/401, Fan Air Modulating Valve
(3)
AMM 54-62-00/201, Nacelle Strut Access Panels
(4)
AMM 71-00-00/201, Power Plant
(5)
AMM 71-11-04/401, Fan Cowl Panels
(6)
AMM 71-11-06/201, Core Cowl Panels
(7)
AMM 78-31-00/201, Thrust Reverser System
D. Access
(1) Location Zone
452 Engine 1 - Strut Torque Box
462 Engine 2 - Strut Torque Box
472 Engine 3 - Strut Torque Box
482 Engine 4 - Strut Torque Box
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MAINTENANCE MANUAL
(2) Access Panel 415 Left Thrust Reverser Half - Engine 1 416 Right Thrust Reverser Half - Engine 1 417 Left Core Cowl Panel - Engine 1 452DL Access Door, Mid Lower Strut (Forward) - Engine 1
425 Left Thrust Reverser Half - Engine 2 426 Right Thrust Reverser Half - Engine 2 427 Left Core Cowl Panel - Engine 2 462DL Access Door, Mid Lower Strut (Forward) - Engine 2
435 Left Thrust Reverser Half - Engine 3 436 Right Thrust Reverser Half - Engine 3 437 Left Core Cowl Panel - Engine 3 472DL Access Door, Mid Lower Strut (Forward) - Engine 3
445 Left Thrust Reverser Half - Engine 4 446 Right Thrust Reverser Half - Engine 4 447 Left Core Cowl Panel - Engine 4 482DL Access Door, Mid Lower Strut (Forward) - Engine 4
E. Install the Precooler
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本文链接地址：747-400 AMM 飞机维护手册 气动系统 PNEUMATIC SYSTEM(140)
