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747-400 MAINTENANCE MANUAL
S 735-022
(23)
Make sure this temperature is approximately (| 2 degrees) the same as the temperature at the start of the test.
S 215-041
(24)
Examine the doors on the trailing edge fairing:
(a)
Examine the door latches on the trailing edge fairing for cracks and wear.
(b)
Make sure all latches are there.
(c)
Repair and adjust the latches if it is necessary
(Ref 54-62-02/501).
S 415-024
CAUTION: MAKE SURE YOU LATCH THE DOORS ON THE TRAILING EDGE FAIRING
_______ CORRECTLY. IF THE DOORS OPEN DURING A FLIGHT, THIS CAN CAUSE DAMAGE TO THE DOORS.
(25) Close the doors in the trailing edge fairing (AMM 54-62-00/201).
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29-32-00
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747-400
MAINTENANCE MANUAL
TEMPERATURE TRANSMITTER - REMOVAL/INSTALLATION
______________________________________________
1. General
_______
A. This procedure has two tasks. The first task removes the temperature transmitter. The second task installs the temperature transmitter. The second task also does a test of the temperature transmitter.
B. A temperature transmitter is installed in each case drain module. You must open the doors in the trailing edge fairing to get access to the temperature transmitter.
TASK 29-32-02-004-001
2. Temperature Transmitter Removal (Fig. 401)
_______________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AMM 54-62-00/201, Nacelle Strut Access Panels
B.
Access
(1)
Location Zone
454 System 1 - Strut Trailing Edge Fairing
464 System 2 - Strut Trailing Edge Fairing
474 System 3 - Strut Trailing Edge Fairing
484 System 4 - Strut Trailing Edge Fairing
(2)
Access Panel
454A Trailing Edge Fairing Doors - System 1
464A Trailing Edge Fairing Doors - System 2
474A Trailing Edge Fairing Doors - System 3
484A Trailing Edge Fairing Doors - System 4
C.
Procedure
(1)
Supply electrical power (AMM 24-22-00/201).
S 014-003
(2)
Open the right and left doors in the trailing edge fairing (AMM 54-62-00/201).
S 864-002
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747-400
MAINTENANCE MANUAL
ENGINE NACELLE STRUT
SEE A
1. HYDRAULIC FLUID
TEMPERATURE
2. ELECTRICAL TRANSMITTER
CONNECTOR
A
A
CASE DRAIN MODULE
CASE DRAIN MODULE HOUSING
A
3. O-RING
1. HYDRAULIC FLUID TEMPERATURE TRANSMITTER
A-A
Hydraulic Fluid Temperature Transmitter Installation Figure 401
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747-400 MAINTENANCE MANUAL
S 864-004
(3)
Release the pressure in the hydraulic system (AMM 29-11-00/201).
S 864-005
(4)
Open the circuit breaker for the applicable hydraulic system:
(a)
P7 Overhead Circuit Breaker Panel
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