S 015-014
(8)
Open the E/E bay access door 119BL (Ref 06-41-00).
S 865-013
(9)
Find the Window Heat Control Units (WHCUs) in the main E/E equipment bay.
NOTE: WHCU M191 is on shelf E1-2 and WHCU M192 is on shelf E1-1.
____
S 865-012
(10)
Push the PRESS/TEST switch on the front of the WHCU.
S 215-011
(11)
Make sure all the indicators on the front of the WHCU come on.
NOTE: There are seven amber LEDs and one green LED on the front of
____
the WHCU.
S 865-019
(12)
Release the PRESS/TEST switch.
S 865-020
(13)
Push and hold the BIT/VERIFY switch on the front of the WHCU.
S 215-021
(14)
Make sure the green TEST COMPLETE light comes on in approximately 10 seconds.
S 865-022
(15)
Release the BIT/VERIFY switch.
S 215-023
(16)
Do the last six steps again for the other WHCU.
E. Put the Airplane Back to Its Usual Condition
S 415-024
(1)
Close the E/E bay access door 119BL.
S 865-025
(2)
Remove the DO-NOT-CLOSE tags and close these P6 panel circuit breakers:
NOTE:____Some circuit breakers can be in one of two locations. These circuit breakers are shown with two locations.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
30-41-00
ALL ú ú 02 Page 503 ú Jun 20/95
A
757 MAINTENANCE MANUAL
(a)
6L13 or 6L15, PITOT HEAT CAPT MAIN
(b)
6L14 or 6L16, PITOT HEAT L AUX
(c)
6L17, L AOA HEAT
(d)
6L21, PITOT HEAT R AUX
(e)
6L22, PITOT HEAT F/O MAIN
(f)
6L23, R AOA HEAT
(g)
6L24, TAT PROBE HEAT
S 865-026
(3)
Put the four WINDOW HEAT switches on the M10395 panel (panel P5) in the OFF position.
S 865-027
(4)
Remove electrical power, if it is not necessary (Ref 24-22-00).
TASK 30-41-00-765-028
3. Test - Window Heater Element Loop Resistances
_____________________________________________
NOTE: The resistance values given do not change much with changes in the
____
ambient temperature.
A. References
(1) 24-22-00/201, Electrical Power - Control
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本文链接地址：757 AMM 飞机维护手册 防冰和排雨 CHAPTER 30 - ICE AND RAIN PROTECTION(119)
