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757
MAINTENANCE MANUAL

 S 214-012
 (3)  If the APU is used as the air source, push the APU switch on the bleed air supply panel M10259 (P5) to the ON position.
 (a)  Make sure the white bar light in the switch comes on.
 S 214-027
 CAUTION: DO NOT OPERATE THE RAIN REPELLENT SYSTEM WITHOUT BLEED AIR.
_______ OPERATION OF THE RAIN REPELLENT SYSTEM WITHOUT BLEED AIR CAN CAUSE THE SYSTEM TO BECOME CLOGGED.
 (4)  
Make sure there is a strong flow of air at the rain repellent nozzles.

 S 864-013

 (5)  
Supply a flow of water to keep the captain's and first officer's No. 1 windows wet.

 S 494-028

 (6)  
Install the fluid-tight bags around the two rain repellent nozzles to collect the repellent fluid.

 S 864-014

 (7)  
If you replaced the captain's nozzle, push the RAIN REPELLENT L switch on the windshield wiper/rain repellent control panel M10023 (P5) to the ON position.

 S 864-015

 (8)  
If you replaced the first officer's nozzle, push the RAIN REPELLENT R switch on the windshield wiper/rain repellent control panel M10023 (P5) to the ON position.

 S 214-016

 (9)  
Make sure that sufficient repellent fluid comes out of the four nozzle holes in equal flows.

 (10)
 Make sure there are no leaks around the nozzle assembly.

 (11)
 Remove the water source.

 S 214-017
 S 864-018
 S 114-019
 CAUTION: CLEAN THE AIRPLANE SKIN AND GLASS TO REMOVE ALL THE RAIN
_______ REPELLENT FLUID. THE REPELLENT FLUID CAN CAUSE A STAIN.
 (12) Immediately and fully clean the airplane skin and windows (Ref 12-25-01).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 S 094-029
 (13)
 Remove the plastic bags from the rain repellent nozzles.

 S 214-030

 (14)
 Make sure there is a strong flow of air at the rain repellent nozzles.

 S 214-020

 (15)
 Make sure the rain repellent fluid level is above the replacement level in the sight gage.

 S 964-021

 (16)
 Replace the bottle, if necessary (Ref 12-16-01).

 S 214-022

 (17)
 Make sure the pressure gage indicator for the repellent fluid is in the green band.
　
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