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时间:2011-04-11 09:21来源:蓝天飞行翻译 作者:航空
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 HEAT switch comes on in 12 seconds or less. 3) Make sure that PASS shows on the CDU.

 (e)
Push the left WINDOW HEAT switch to the off position.

 


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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
 (4)  S 864-008Set the GND TEST switch on the P461, panel to NORM.
 (5)  S 864-010Remove electrical power (AMM 24-22-00/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 CONTROL AND OVERHEAT THERMOSTATS - REMOVAL/INSTALLATION
_______________________________________________________
 1.  General_______
 A.  This subject contains four tasks. The first two tasks are the removal and installation of the control thermostat for the No. 2 or No. 3 window. The second two tasks are the removal and installation of the overheat thermostat for the No. 2 or No. 3 window. In this procedure, you will open circuit breakers, disconnect the thermostat to be replaced, and install a replacement thermostat.
 TASK 30-41-06-004-001
 2.  Control Thermostat Removal (Fig. 401)__________________________
 A.  References
 (1)  
AMM 56-11-02/401, No. 2 and 3 Windows

 (2)  
AIPC 30-41-06, Fig. 1

 (3)  
SSM 30-41-01, SSM 30-41-02

 (4)  
WDM 30-41-21, WDM 30-41-31


 B.  Access
 (1)  Location Zone 221 Control Cabin, RH - No. 2 and 3 Left Side Windows 222 Control Cabin, LH - No. 2 and 3 Right Side Windows
 C.  Procedure
 S 864-002
 (1)  
Open 6E28, WINDOW HEAT PWR 2L&3R and 6E30, WINDOW HEAT PWR 2R&3L circuit breakers on the P6, Main Power Distribution Panel.

 S 034-003

 (2)  
Lift the retainer and move the thermostat away from the windowpane: ~........................................ | Window 2L | Control Thermostat S760 | .......................................... | Window 3L | Control Thermostat S759 | .......................................... | Window 2R | Control Thermostat S761 | .......................................... | Window 3R | Control Thermostat S762 | 2.............…..........................1

 (3)
Move the thermostat to one side and carefully lower the spring.

 (4)  
Disconnect the wiring at the thermostat.


 S 024-004
 S 034-005
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

1L 1R
OVERHEAT
THERMOSTAT
SEE B
2L 2R

CONTROL THERMOSTAT
3L  3R
SEE A
WINDOW
FLIGHT COMPARTMENT WINDOWS
WINDOW 1. RETAINER BOLTSPRINGWINDOW
RETAINER
SPRING

3. RUBBER RING
THERMAL
SEALANT
CONTROL
THERMOSTAT

2. OVERHEAT THERMOSTAT
BRACKET
B
SEE C ELECTRICAL CONNECTOR 1
A
THERMOSTAT
O-RING
NOTE: LEFT SIDE WINDOWS THERMOSTATS INSTALLATION SHOWN, RIGHT SIDE WINDOWS THERMOSTATS INSTALLATION OPPOSITE.
C
1
SOME CONTROL THERMOSTATS DO NOT HAVE A SEPARATE
ELECTRICAL CONNECTOR

Control and Overheat Thermostats Installation
Figure 401

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