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GPS antenna - Removal / Installation
Figure 201 - With upper duct upholstering
ABAB
Validity : GARMIN 100 / 150 34-57-02 Page 203
(BE) FEB 00
 

  1 - GPS antenna
2 - Gasket
3 - Connector
4 - Nut
5 - GPS antenna cover
6 - Antenna cover upholstering
7 - Screw
8 - Washer
9 - Screw
10 - Washer

 
GPS antenna - Removal / Installation
Figure 201A - Without upper duct upholstering
ABAB
Validity : GARMIN 100 / 150 34 57 02Page 204
(BE) FEB 00
 
E48 / E49 GPS ANTENNA
MAINTENANCE PRACTICES
 SERVICING
None
 REMOVAL / INSTALLATION - GPS ANTENNA (Figure 201)
A. Tools and consumable materials
- Sealant (TB 09-903)
- Plastic scraper
- Cleaning agent (TB 11-912)
- Clean lintfree cloths
B. Removal of GPS antenna
 Make sure that the main switch-breaker is open.
 Using a plastic scraper, remove the sealant bead applied around the antenna.
E49 GPS antenna
 Remove 241A rear overhead panel.
E48 GPS antenna
3) Hold 241 F overhead panel and remove the front and rear attachment screws and washers.
 Sufficiently clear the overhead panel to gain access to connector (3).
NOTE : For the remaining operations, hold the overhead panel suspended by an appropriate means to avoid overstressing the electrical wires.
All
 Disconnect connector (3).
 Remove and discard nuts (4).
 Remove GPS antenna (1) and gasket (2).
 Remove any sealant residues on the fuselage and on GPS antenna (1).
C. Installation of GPS antenna
 Make sure that the main switch-breaker is open.
 Using a clean lintfree cloth soaked with cleaning agent (TB 11-912), clean the skin area in contact with the base of GPS antenna (1). Wipe with a dry cloth.
 Position gasket (2) on GPS antenna (1).
 Position and secure GPS antenna (1) equipped with the gasket with new nuts (4).
 Connect connector (3).
ACAC
Validity : GA 56 - Post-MOD. 151 34-57 02Page 201
(B1) NOV 01
 
E49 GPS antenna
6) Install 241A rear overhead panel.
E48 GPS antenna
 Position and secure 241 F overhead panel.
All
 Apply a bead of sealant (TB 09-903) around the antenna / fuselage junction.
 Perform an operational test of the GPS system.
ACAC
Validity : GA 56 - Post-MOD. 151 34-57 02Page 202
(BI) NOV 01
 
 
1 - GPS antenna
2 - Gasket
3 - Connector
4 - Nut
 
GPS antenna - Removal / Installation
Figure 201
ACAC
Validity : GA 56 - Post-MOD. 151 34 - 57 - 02 ,31) Page 203
NOV 01
　
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本文链接地址：TB20 MAINTENANCE MANUAL 34 导航 TB20飞机维护手册 2(88)