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 (h)  Tighten screws on forward and aft support brackets.
 S 414-140
 (6)  Close the radome temporily (AMM 53-52-01/201) until after the weather radar test ND display test is done:
 NOTE: The radome is closed to prevent equipment damage from wind
____
 or rain.

 (a)  
Move the radome to the closed position.

 (b)  
Engage two of the six latch hooks.

 S 734-141
 (7)  Do the weather radar ND Display Test listed below in the Weather Radar System Test.
 E. Waveguide Section 3 Installation
 NOTE: To remove waveguide Section 3, it is necessary to get into the
____ nose radome and below the compartment floor in the nose cargo door.
 S 424-087
 (1)  Make sure these circuit breakers are open with DO-NOT-CLOSE
 attached:

 (a)  P7 Overhead Circuit Breaker Panel
 1) 7C7 WXR L RT
 2) 7C19 WXR R RT

 S 014-244
 (2)  Get access to section 3 below the compartment floor:
 (a)  Release the 18 fasteners that hold the cargo floor panel.
 WARNING: STEP ONLY ON THE FLOOR BEAMS WHEN YOU REMOVE CARGO FLOOR
_______ PANEL. THE FLOOR PANELS BETWEEN THE BEAMS CAN FLEX AND CAUSE YOU TO FALL. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURY TO PERSONNEL AND/OR DAMAGE TO THE WEATHER RADAR EQUIPMENT OR BLANKET MATERIAL CAN OCCUR.
 WARNING:_______THE CARGO FLOOR PANEL IS HEAVY. TO PREVENT INJURY, TWO PEOPLE ARE REQUIRED WHEN LIFTING OR MOVING THE CARGO FLOOR PANEL.
 CAUTION: DO NOT PUSH OR PULL THE CARGO FLOOR PANEL ACROSS THE FLOOR
_______ BEAMS. THIS ACTION CAN CAUSE DAMAGE TO THE BLANKET MATERIAL.
 (b)  Carefully remove the cargo floor panel.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 S 424-127
 (3)  Remove the dust caps from the waveguide flanges.
 NOTE: Replace gaskets if they are defective.
____
 S 424-090
 (4)  Install waveguide Section 3:
 (a)  
Install four screws and lockwashers with gaskets in flanges between section 2 and section 3.

 (b)  
Install four screws and lockwashers with gasket in flanges between section 3 and section 4.

 F. Waveguide Section 4 Installation
 NOTE: To remove waveguide Section 4, it is necessary to get into the
____ nose radome and below the compartment floor in the nose cargo door.
 S 864-091
 (1)  Make sure these circuit breakers are open with DO-NOT-CLOSE tags attached:
 (a)  P7 Overhead Circuit Breaker Panel
 1) 7C7 WXR L RT
 2) 7C19 WXR R RT

 S 014-248
 (2)  Get access to section 4 below the compartment floor:
 (a)  Release the 18 fasteners that hold the cargo floor panel.
 WARNING: STEP ONLY ON THE FLOOR BEAMS WHEN YOU REMOVE CARGO FLOOR
_______ PANEL. THE FLOOR PANELS BETWEEN THE BEAMS CAN FLEX AND CAUSE YOU TO FALL. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURY TO PERSONNEL AND/OR DAMAGE TO THE WEATHER RADAR EQUIPMENT OR BLANKET MATERIAL CAN OCCUR.
 WARNING:_______THE CARGO FLOOR PANEL IS HEAVY. TO PREVENT INJURY, TWO PEOPLE ARE REQUIRED WHEN LIFTING OR MOVING THE CARGO FLOOR PANEL.
 CAUTION: DO NOT PUSH OR PULL THE CARGO FLOOR PANEL ACROSS THE FLOOR
_______ BEAMS. THIS ACTION CAN CAUSE DAMAGE TO THE BLANKET MATERIAL.
 (b)  Carefully remove the cargo floor panel.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 S 424-128
 (3)  Remove the dust caps from the waveguide flanges.
 NOTE: Replace gaskets if they are defective.
　
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