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A 737-300/400/500MAINTENANCE MANUAL
ADF NO. 2 LOOP ANTENNA AND QUADRANTAL ERROR CORRECTOR
SEE A
ADF NO. 1 LOOP ANTENNA
LOOP ANTENNA AND QUADRANTAL ERROR
TRANSMISSION CORRECTOR
CABLE SEE A
STA 560.94
STA 597.62
QUADRANTAL
ERROR CONNECTOR
LOOP ANTENNA
CONNECTOR LOOP ANTENNA
FWD ASSEMBLY COVER (9 PLACES) MOUNTING SCREWS COVER ASSEMBLY
ANTENNA MOUNTING SCREWS (8 PLACES) (EXAMPLE) ADF LOOP ANTENNA AND QUADRANTAL ERROR CORRECTOR
A
Figure 401 ADF Loop Antenna Installation
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A 737-300/400/500MAINTENANCE MANUAL
2) AIRPLANES WITH EFIS;
ADF-2 or EXCIT XFMR-2
3) ADF-2 DC
S 014-011
(2)
Hold the cover assembly panel and remove the screws.
S 014-039
(3)
Remove the cover assembly panel.
S 024-042
(4)
Hold the ADF loop antenna and remove the screws.
NOTE: Three different lengths of screws are used to install the
____ loop antenna. Make sure to install the screws in the correct holes when you reinstall the antenna.
S 024-012
(5)
Move the ADF loop antenna panel to a lower position.
S 024-040
(6)
Disconnect the coaxial connector from the quadrantal error corrector.
S 024-014
(7)
Remove the ADF loop antenna.
S 024-038
(8)
Remove the quadrantal error corrector from the ADF loop antenna.
TASK 34-57-11-404-016
3. ADF Loop Antenna and Quadrantal Error Corrector Installation (Fig. 401)
____________________________________________________________
A. Consumable Materials
(1) G00009 Corrosion Preventative (Dow Corning No. 4)
-BMS 3-23
B. References
(1)
AMM 20-10-37/401, Electrical Bonding
(2)
SWPM 20-20-00, Standard Wiring Practices Manual
(3)
AMM 24-22-00/201, Manual Control
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A
737-300/400/500MAINTENANCE MANUAL
(4)
AMM 34-57-00/501, Automatic Direction Finder System
(AIRPLANES WITHOUT EFIS)
(5)
AMM 34-57-01/501, Automatic Direction Finder
(AIRPLANES WITH EFIS)
(6)
AMM 51-21-31/701, Corrosion Removal and Control
(7)
SRM 51-20-10, Corrosion Prevention
C. Access
(1) Location Zones
101 Flight Compartment, Left
102 Flight Compartment, Right
215 Bottom Center Fuselage - Exterior
D. Procedure
S 144-040
(1)
Clean the mating surfaces of the antenna and the airplane structure (AMM 51-21-31/701).
S 624-018
(2)
Apply a layer of BMS 3-23 corrosion prevention compound to the mating surfaces of the antenna and the airplane structure (SRM 51-20-01).
S 624-017
(3)
Bond the mating surfaces of the antenna and the airplane structure (AMM 20-10-37/401).
S 424-041
(4)
Install the quadrantal error corrector on the ADF loop antenna.
(5) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 导航 NAVIGATION 4(55)
