747飞机维护手册AMM CHAPTER 34 - NAVIGATION 第34章导航4(6)

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 3.  Prepare for Removal
___________________
 A.  Open WEA RDR R/T 1, WEA RDR R/T 2, WEA RDR IND 1 and WEA RDR IND 2 circuit breakers on overhead circuit breaker panel P7 and tag circuit breakers with DO-NOT-OPERATE identifiers.
 B.  Remove receiver/transmitter(s) from receiver/transmitter mount
 (Ref 34-43-02).

 4.  Remove Waveguide Switch (Fig. 401)
_______________________
 A.  On Passenger Airplanes with RCA AVQ-30X Weather Radar
 (1)  
Remove electrical connector from waveguide switch.

 (2)  
Move flexible waveguide section from antenna as required to remove waveguide switch.

 (3)  
Remove four screws and lockwashers connecting waveguide switch to each R/T feeder waveguide.

 (4)  
Remove four screws and lockwashers connecting flexible waveguide section from antenna to waveguide switch.

 EFFECTIVITY

 
 ALL  28 Page 401  Apr 25/9334-43-04
SEE ASEE A WEATHERWEATHER RADARRADAR ANTENNAANTENNA
AIRPLANES WITH BENDIX AIRPLANES WITH RCA RDR-IF WEATHER RADAR AVQ-30X WEATHER RADAR
CLAMP SECTION 1 (FLEXIBLE)
WAVEGUIDE SUPPORT ANGLE FLANGE AND QUICK-DISCONNECT
SECTION 3  SECTION 2  TO 
ANTENNA 
RECEIVER/ 
TRANSMITTER 
CLAMP 

CLAMP FLANGE
CLAMP CLAMP
FLANGE
SEE C CLAMP
SECTION 6 (FLEXIBLE)
SECTION 5 SECTION 4
1
WAVEGUIDE GUARD
SECTION 3 CLAMP
INBD
FLANGE CLAMP FWD A CLAMP
1 SOME AIRPLANES MAY HAVE A REFLECTOMETER INSTALLED BETWEEN SECTIONS 4 AND 6
Weather Radar Waveguide Removal/Installation Figure 401 (Sheet 1)
EFFECTIVITY

ALL EXCEPT FREIGHTERS
799 Page 402
34-43-04
 Aug 25/90
WEATHER SEE B
RADAR SEE B ANTENNA
AIRPLANES WITH COLLINS AIRPLANES WITH BENDIXWXR-700X WEATHER RADAR RD4-4A WEATHER RADAR
CLAMP SECTION 1 (FLEXIBLE)
FLANGE SUPPORT ANGLE FLANGE AND
SECTION 3  SECTION 2  TO 
ANTENNA WAVEGUIDE 
RECEIVER/  QUICK-DISCONNECT 
TRANSMITTER 
CLAMP 

CLAMP FLANGE
CLAMP
CLAMP
FLANGE
SEE C CLAMP
SECTION 6 (FLEXIBLE)
SECTION 5 SECTION 4
1
WAVEGUIDE GUARD
SECTION 3 CLAMP
INBD
FLANGE CLAMP FWD B CLAMP
1 SOME AIRPLANES MAY HAVE A REFLECTOMETER INSTALLED BETWEEN SECTIONS 4 AND 6
Weather Radar Waveguide Removal/Installation Figure 401 (Sheet 2)
778925
EFFECTIVITY

ALL EXCEPT FREIGHTERS
799 Page 403
34-43-04
 Aug 25/90
SECTION 5 SUPPORT

TO RECEIVER/ TRANSMITTER
Weather Radar Waveguide Removal/Installation
Figure 401 (Sheet 3)

EFFECTIVITY ALL EXCEPT FREIGHTERS

799 Page 404
34-43-04
Aug 25/90
 778953
SEE E
WAVEGUIDE SWITCH
R/T FEEDER (FLEXIBLE)
SECTION 5 FLANGE SECTION 4 FLANGE
SEE D
RECEIVER/ TRANSMITTER NO. 2
R/T
D
MOUNT RECEIVER/ TRANSMITTER NO. 1
CLAMP
SECTION 1 
FLANGE  (FLEXIBLE) 
SUPPORT 
ANGLE  FLANGE 
FLANGE  FORWARD W/G 
SUPPORT 
R/T FEEDER (FLEXIBLE)  SECTION 2  TO ANTENNA WAVEGUIDE  BRACKET 
AFT W/G  CLAMP  QUICK- FASTENERS 
SUPPORT  DISCONNECT 
BRACKET 

FLANGE
SEE F
SECTION 3
WAVEGUIDE TAB
BULKHEAD FLANGE E AND GASKET
WAVEGUIDE
F
Weather Radar Waveguide Removal/Installation Figure 401 (Sheet 4)
778983
EFFECTIVITY

FREIGHTERS WITH BENDIX RDR-IF WEATHER RADAR 799 Page 405
34-43-04
Aug 25/90
AIRPLANES WITH COLLINS SEE G WXR-700X WEATHER RADAR
G
SEE H
RECEIVER/ TRANSMITTER
NO. 2 
RECEIVER/ 
WAVEGUIDE  TRANSMITTER 
SWITCH  NO. 1  AIRPLANE 
FLOOR BEAM 
R/T FEEDER 
(FLEXIBLE) 
CLAMP 
R/T MOUNT 
FLANGE 
SUPPORT 
ANGLE 

FLANGE R/T FEEDER (FLEXIBLE) SECTION 2
FLANGE
SECTION 5 CLAMP WAVEGUIDE
W/G SWITCH SECTION 4 TAB
SUPPORT BRACKET SEE I
AFT W/G SUPPORT BRACKET SECTION 3
BULKHEAD FLANGE H AND GASKET
NOTE: SEE SHEET 1 FOR FLAG NOTES.
WEATHER RADAR ANTENNA WEATHER RADAR ANTENNA
AIRPLANES WITH RCA AVQ-30X WEATHER RADAR
G
(FLEXIBLE) SECTION 1 
FLANGE 
QUICK-DISCONNECT WAVEGUIDE TO ANTENNA  FASTENERS  SUPPORT FORWARD W/G BRACKET 
　
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