757 AMM 飞机维护手册 防冰和排雨 CHAPTER 30 - ICE AND RAIN PROTECTION(68)

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 mounted on a fan case bracket near the top of the TAI
 valve.
 (b)  Install the dust cap (5) on the dummy receptacle (Fig.  402).
 (c)  Install the electrical connector that usually connects to the
 valve position indicator switch on the engine mounted parking
 receptacle (Fig. 402).
 NOTE:____ Incorrect installation of the electrical connector
 will result in an EICAS message (R/L ENG ANTI-ICE) on
 the flight deck at power up.
 1)  Attach the dust cap (5) to its holder.

 S 864-033
 (15) Remove the DO-NOT-CLOSE tags and close these P11 panel circuit breakers:
 (a) 11C27 or 11C26, ENG ANTI-ICE LEFT
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757 MAINTENANCE MANUAL
 (b)  11C28 or 11C27, ENG ANTI-ICE RIGHT
 E. Do a Test of the TAI Valve Installation
 S 864-034
 (1)  Supply electrical power (AMM 24-22-00/201).
 S 864-058
 CAUTION: DO NOT OPERATE BLEED DUCTS AT TEMPERATURES ABOVE 450 DEGREES F
_______ AND DO NOT OPERATE ENGINE ANTI-ICE FOR MORE THAN 5 MINUTES.
 (2)  
Supply pneumatic power while the engine operates (AMM 36-00-00/201).

 S 864-036

 (3)  
Put ENGINE ANTI-ICE switch-light on the P5 panel in the ON position and make sure the white ON light comes on.

 S 214-037

 (4)  
Make sure the amber VALVE light comes on for approximately 2 seconds, then goes off.

 S 864-038

 (5)  
Put the ENGINE ANTI-ICE switch-light in the OFF position and make sure the ON light goes off.

 S 864-039

 (6)
Remove pneumatic power if it is not necessary (AMM 36-00-00/201).

 S 864-040

 (7)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 (8)  
Close the fan cowls (AMM 71-11-04/201).

 (9)
Do the Thrust Reverser Activation procedure (AMM 78-31-00/201).

 S 414-041
 S 444-043
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757 MAINTENANCE MANUAL
 ENGINE TO THERMAL ANTI-ICING RING DUCT AND PRESSURE INDICATOR -
　
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