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 (4)  S 824-011Adjust the nozzle: (a) Push the WASHER switch to apply washer fluid to the windshield. (b) Adjust the three alignment screws to make the washer fluid hit the windshield 18 to 20 inches from the nozzle hole and 14 to 16 inches from the wiper blade release stud (Fig. 402).
 NOTE:____ The washer jet pattern shows the correct nozzle adjustment. The washer fluid will hit the windshield correctly if the washer fluid pattern is correct.
 CAUTION:_______ DO NOT TIGHTEN THE ADJUSTMENT SCREWS TOO MUCH. IF YOU MAKE THE SCREWS TOO TIGHT, IT IS POSSIBLE THAT YOU WILL DAMAGE THEM.
 (c)  Tighten the adjustment screws from 1.0 to 1.5 pound-inches to lock the nozzle in position.
 (5)  S 114-012Clean the plate and the nozzle mating surfaces with solvent.
 (6)  S 434-013Put the fairing over the nozzle and install the mounting bolt.
 (7)  S 394-014Apply sealant around the bottom of the fairing to make a fillet (Fig. 401, Section B-B).
 (8)  S 864-015Remove the DO-NOT-CLOSE tags and close these circuit breakers: (a) P6, Main Power Distribution Panel 1) 6B34, WINDOW HEAT 1L PWR

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A

747-400
MAINTENANCE MANUAL

WINDSHIELD
(LEFT SIDE IS SHOWN, RIGHT SIDE IS OPPOSITE)

Washer Fluid Spray Pattern
Figure 402

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K27154
A
747-400 MAINTENANCE MANUAL
 2) 6B17, WINDOW HEAT 1R PWR
 (b)  P180, DC Power Distribution Panel
 1) 180H26, WDO HEAT CONT 1L
 2) 180H12, WDO HEAT CONT 1R

 S 864-016
 (9)  Remove electrical power (AMM 24-22-00/201).
 TASK 30-44-02-004-017
 4.  Nozzle Fitting Removal (Fig. 401)______________________
 A. Consumable Materials
 (1)  
G00507, Cloth - Lint Free (to catch repellent fluid drops)

 (2)  
G00040, Cord - Nylon (to hold the nozzle fitting and supply hoses)

 B. References
 (1)  
AIPC 30-43-00, Fig. 5

 (2)  
AMM 31-61-02/401, Integrated Display Unit

 (3)  
SSM 30-42-01

 (4)  
WDM 30-43-11

 C. Access
 (1)  Location Zone 221 Control Cabin, LH - Captain's Instrument Panel and Outside No. 1 Left Window
 222  Control Cabin, RH - First Officer's Instrument Panel and Outside No. 1 Right Window
 D. Procedure
 S 864-020
 WARNING:_______MAKE SURE TO OPEN THE WINDOW HEAT CIRCUIT BREAKERS. YOU CAN GET AN ELECTRICAL SHOCK IF YOU TOUCH THE WINDSHIELD WHEN THE WINDOW HEAT POWER IS ON.
 WARNING: MAKE SURE TO OPEN THE CIRCUIT BREAKERS FOR THE CAPTAIN'S AND
_______ THE FIRST OFFICER'S SEATS BEFORE YOU DO WORK AROUND THEM. A FAILURE TO OPEN THE CIRCUIT BREAKERS CAN CAUSE THE SEATS TO MOVE ACCIDENTALLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  P7, Overhead Circuit Breaker Panel
 1) 7E26, WSHLD WASH

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A 747-400 MAINTENANCE MANUAL
 (b) (c) (d) (e)  P6, Main Power Distribution Panel 1) 6B32, WINDSHIELD WASH PUMP 2) 6B34, WINDOW HEAT 1L PWR 3) 6B17, WINDOW HEAT 1R PWRP180, DC Power Distribution Panel 1) 180H26, WDO HEAT CONT 1L 2) 180H12, WDO HEAT CONT 1RP414, Left Power Distribution Center 1) 414D8, CAPT PWR SEATP415, Right Power Distribution Center 1) 415H32, F-O PWR SEAT
 (2)  S 014-021Do this task for the PFD and ND on the captain's or the first officer's P2 panel: "Integrated Display Unit Removal" (AMM 31-61-02/401).
　
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