757 AMM 飞机维护手册起落架 CHAPTER 32 - LANDING GEAR 3(11)_航空信息_民用航空_通用航空

757
MAINTENANCE MANUAL

B. Access
(1)
Location Zones
211 Control Cabin, Left
212 Control Cabin, Right
731 Landing Gear Left
741 Landing Gear Right
120 Main Equipment Center, Right

C.
Procedure

S 865-215
(1)
Supply electrical power (AMM 24-22-00/201).

S 865-244

(2)
Make sure that these circuit breakers on the overhead circuit breaker panel, P11, are closed:

(a)
11A33, INDICATOR LIGHTS 2

(b)
11C31, ANTI-SKID 2-6

(d)
11J2, EICAS CMPTR LEFT

(e)
11J3, EICAS UPPER DISPLAY

(f)
11J29, EICAS CMPTR RIGHT

(g)
11J30, EICAS LOWER DISPLAY

(h)
11J31, EICAS DISPLAY SW

(i)
11J32, EICAS DISPLAY SELECT

(j)
11P28, R IND LTS 1

(k)
11P29, R IND LTS 2

(l)
11S14, AUTOBK ANTISKID TEST IND 1

(m)
11S15, AIR/GND SYS 1

(n)
11S18, ANTI-SKID 1-5

(o)
11S19, AIR/GND SYS 2

(p)
11S21, AUTOBK ANTISKID TEST IND 2

(q)
11S22, ANTI-SKID 4-8

S 865-217
(3)
Make sure that this circuit breaker on the main power distribution panel, P6, is closed:

(a)
6F4, LANDING GEAR PARKING BRAKE VLV

32-42-00
ALL ú ú 03 Page 505 ú May 28/02

A

757
MAINTENANCE MANUAL

S 015-227
(4)
AIRPLANES WITH THE ANTISKID/AUTO BRAKE CONTROL UNIT ON THE E5 RACK (FIG. 501); Do the steps that follow:

(a)
Open the forward cargo door, 821 (AMM 06-46-00/201).

TASK 32-42-00-715-001
3. Power Distribution and Indication Test______________________________________
A. General
(1)
For this test, you open and close circuit breakers to do these checks:

(a)
Checks to make sure that power is supplied correctly to the system

(b)
Checks to make sure that the system indicator lights and the EICAS displays give the correct indications and messages.

B.
Prepare for the Test

S 865-383
(1) Put the L, R and C IRUs in the NAV mode (AMM 34-21-00).
NOTE: The IRUs must be aligned.
____
S 815-384
(2) Pressurize the right and left hydraulic systems and reservoirs (AMM 29-11-00).
S 945-253
WARNING:_______THE PARKING BRAKE IS RELEASED IN THIS TEST. MAKE SURE THAT THE AREA AROUND THE BRAKES IS CLEAR AND THAT CHOCKS ARE INSTALLED ON THE AIRPLANE WHEELS. THIS WILL PREVENT POSSIBLE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Make sure that downlocks are installed on the main and nose landing gear (AMM 32-00-20).

(4)
Make sure that chocks are installed on the wheels.

(5)
Release the parking brake.

S 715-004

(6)
Push the STATUS DISPLAY switch on the forward electrical control stand panel, P9.

S 495-254
S 865-252

32-42-00
ALL ú ú 04 Page 506 ú Sep 28/99

A

757 MAINTENANCE MANUAL
C. Procedure to do the Antiskid System Indication Test
S 715-214
(1)
Do the steps that follow for each of the steps listed in Table 1:

(a)
Open the circuit breaker for the test in Table 1.

(b)
Set the parking brake before you do the step 8 test in Table 1.

NOTE: The parking brake must be released for the tests in
____
steps 1 thru 7 of Table 1.

(c)
Do this BITE test on the Antiskid/Autobrake Control Unit (M102) for each test step in Table 1. 1) Push in and hold the ENABLE/VERIFY switch. 2) Push in the VERIFY switch. 3) Release the ENABLE/VERIFY and VERIFY switches. 4) Make sure that the indication on the M102 display is as

shown.

(d)
Close the circuit breaker.

(e)
Make sure that the indications go out.

32-42-00
ALL ú ú 03 Page 507 ú May 28/99

A

757
MAINTENANCE MANUAL