(i)  
Connect the electrical connector D2273 on the wire bundle to the blower motor connector.

 S 224-020
 (5)  Do a check of the electrical bond between the shelf assembly and the R/T mount (SWPM 20-20-00).
 (a)  Make sure the resistance is not more than 0.002 ohms.
 S 434-008
 (6)  
Do this task to attach the R/T to the R/T mount: Receiver/Transmitter Installation (AMM 34-41-41/401).

 (7)  
Supply electrical power (AMM 24-22-00/201).

 S 864-012
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A
737-300/400/500MAINTENANCE MANUAL
WAVEGUIDE R/T MOUNT SWITCH
SEE A

SCREW (4)  SHELF ASSEMBLY (LOWER NOSE COMPARTMENT)
FWD
OUTBD
WAVEGUIDE SWITCH
WAVEGUIDE AND DUMMY LOAD
SECTION 2
R/T MOUNT

WAVEGUIDE SWITCH ELECTRICAL CONNECTOR
WAVEGUIDE SECTION 3 
(FLEXIBLE)  SHELF ASSEMBLY 
(LOWER NOSE 
NUT AND  COMPARTMENT) 
WASHER (4) 

R/T MOUNT FWD OUTBD
ELECTRICAL
CONNECTOR

A

Weather Radar Receiver/Transmitter Mount Installation
Figure 401 (Sheet 1)

E85681
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FORWARD 
BULKHEAD 
SCREWS (4) 
WASHERS (8)  SECTION 2 
NUTS (4) 
R/T MOUNT 
WAVEGUIDE 
WAVEGUIDE FLANGE 
SCREWS (4) 
LOCKWASHERS (4) 
GASKET (1) 
BLOWER 
MOTOR 
CONNECTOR 
CONNECTOR 
D189 

SCREW (4) 
R/T MOUNT 
SHELF ASSEMBLY COMPARTMENT) (LOWER NOSE  FWD  OUTBD 
Weather Radar Receiver/Transmitter Mount Installation Figure 401 (Sheet 2) 

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A
737-300/400/500MAINTENANCE MANUAL
 S 864-057
 (8)  AIRPLANES WITH SPERRY PRIMUS 90 WEATHER RADAR SYSTEMS; Remove the DO-NOT-CLOSE tags and close these circuit breakers:
 (a)  P6 Load Control Center - Right
 1) WEATHER RADAR AC
 2) WEATHER RADAR DC

 S 864-062
 (9)  AIRPLANES WITH COLLINS WXR-700X WEATHER RADAR SYSTEMS; Remove the DO-NOT-CLOSE tag and close this circuit breaker:
 (a)  P6 Load Control Center - Right
 1) WEATHER RADAR R/T

 S 714-075
 (10)
 AIRPLANES WITH SPERRY PRIMUS 90 WEATHER RADAR SYSTEM; Do the operational test of the weather radar system (AMM 34-41-00/501).

 S 714-080

 (11)
 AIRPLANES WITH COLLINS WXR-700 WEATHER RADAR SYSTEMS; Do the operational test of the weather radar system (AMM 34-41-02/501).

 (12)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 864-011
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A
737-300/400/500MAINTENANCE MANUAL
 WEATHER RADAR RECEIVER-TRANSMITTER - REMOVAL/INSTALLATION
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