S 865-089
(4)
Open and close this P11 panel circuit breaker:
(a) 11S15, LANDING GEAR AIR/GND SYS 1
NOTE: This starts the 20 second timer for the fire bell so it will
____ not come on during takeoff. Perform the next four steps within these 20 seconds. If these steps are not completed within the time limit, open and close the POSITION AIR/GND SYS 1 circuit breaker and begin again.
S 865-090
(5) Push and hold the ENG/APU CARGO switch on the FIRE/OVHT TEST panel.
(a) Make sure that the fire bell does not come on.
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S 865-444
(6) Close the P11 panel circuit breaker:
(a) 11J33, WARN ELEX A
S 865-445
(7) Open this P11 panel circuit breaker:
(a) 11B18, WARN ELEX B
S 865-447
(8) Set the radio altitude test set to 410 feet.
(a) Make sure that the master warning lights come on.
(b) Make sure that the fire bell aural warning comes on.
NOTE:____ The fire bell operates on a cycle of 0.8 second on and
9.2 seconds off.
S 865-092
(9) Momentarily push the captain's or first officer's master warning lights.
(a) Make sure the master warning lights and the fire bell go off.
S 865-093
(10)
Release the ENG/APU CARGO switch.
S 865-446
(11)
Close the P11 panel circuit breaker:
(a) 11B18, WARN ELEX B
S 865-094
(12) Make sure that these gear down-and-locked proximity switches are activated:
NOTE:____The switches can be activated with a sensor actuator. The actuator is to be held within 0.15 inches of the sensor. Masking tape or the equivalent can be used to hold the actuator in the necessary position. When these switches are activated, the switches will be in a target near condition.
(a)
S10066 Nose Gear Down
(b)
S10065 Nose Gear Locked
(c)
S10061 Left Gear Down and Locked
(d)
S10057 Right Gear Down and Locked
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WARNING: PREPARE THE SAFETY-SENSITIVE SYSTEMS FOR THE AIR MODE BEFORE
_______ YOU OPEN THE AIR/GROUND CIRCUIT BREAKERS. IN THE AIR MODE, MANY OF THE AIRPLANE SYSTEMS CAN OPERATE AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(13)
Prepare the safety-sensitive systems for air mode simulation (AMM 32-09-02/201).
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本文链接地址：757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 2(105)
