32-42-00
ALL ú ú 01 Page 508 ú Mar 20/94
A
757
MAINTENANCE MANUAL
~............................................................................... | TABLE 1 (Continued) | ................................................................................. | 6 | 11S21, AUTOBK | NONE | NONE |(BITE | | | ANTISKID | | |test not | | | TEST IND 2| | |required)| .................................................................................
| 7 | 11S14, AUTOBK | ALTN ANTISKID | EICAS Status Display |(BITE |
| | ANTISKID | ANTISKID/ | EICAS Maintenance Display |test not |
| | TEST IND 1| AUTOBRK | |required)|
| | 11S21, AUTOBK | | | |
| | ANTISKID | | | |
| | TEST IND 2| | | |
| | | | | |
................................................................................. | 8 | 6F4, LANDING | ANTISKID light| Misc annunciator on P5 |(BITE | | | GEAR PARKING | comes on | |test not | | | BRAKE VLV | ANTISKID | EICAS Advisory Display |required)| | | (Set park brake | NORM ANTISKID | EICAS Status Display | | | | before the | | | | | | step 8 test) | | | | .......…..................…...............…...........................….......... | | | NOTE: |
____There is a three-second delay before the indicators come on after | you pull the LANDING GEAR PARKING BRAKE (6F4) circuit breaker. | | | 2...............................................................................1
TASK 32-42-00-405-007
4. Antiskid System Operational Tests - Brake Application_____________________________________________________
A. General
(1)
This is a test to make sure that the brakes apply and release with the antiskid systen controls.
(2)
You can monitor brake adjuster indicator pin movement on the brake to see that the brakes apply and release. Wheel pairs for locked wheel protection are wheels 1 and 5, 2 and 6, 3 and 7, and 4 and 8. The front panel of the Antiskid/Autobrake Control Unit (Fig. 501) shows the wheel number assignment.
B.
Prepare for the Test
S 715-239
WARNING:_______THIS TEST APPLIES AND RELEASES THE BRAKES. 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.
(1) Make sure that downlocks are installed on the main and nose landing gear (AMM 32-00-20).
32-42-00
ALL ú ú 02 Page 509 ú May 28/02
A
757 MAINTENANCE MANUAL
S 495-009
(2)
Make sure that chocks are installed on the wheels.
S 945-010
(3)
Do the Prepare for the Tests Task (Ref Par. 2).
S 865-011
(4)
Release the parking brake.
C.
Do a Brake Application Test with the Normal Antiskid System
S 865-012
(1)
Pressurize the right hydraulic system and reservoir (AMM 29-11-00).
S 865-013
(2)
Open this circuit breaker on the P6 panel and attach a DO-NOT-CLOSE tag:
(a)
6F4, LANDING GEAR PARKING BRAKE VLV
S 865-014
(3)
Set the parking brake.
S 865-015
(4)
Put the thrust levers in the idle position.
S 865-016
(5)
Retract the spoilers.
S 865-017
(6)
Put the L, R and C IRUs in the NAV mode (AMM 34-21-00).
NOTE: The IRUs must be aligned.
____
S 715-020
(7)
Push in the RESET button on the M102 unit and stop 5 |3 seconds (the display will show MEM CLR during this time).
S 715-021
(8)
Make sure that you have these indication:
(a)
The ANTISKID light on the P5 panel is off and the EICAS message ANTISKID is out of view.
S 715-022
(9)
Do the test steps in Table 2. Put the BRAKE TEST rotary switch on the M102 unit front panel in the position shown and do the steps that follow:
(a)
On the M102 unit front panel, push in and hold the ENABLE/VERIFY switch and then push in the VERIFY switch. Release the two switches at the same time.
32-42-00
ALL ú ú 02 Page 510 ú May 28/02
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 起落架 CHAPTER 32 - LANDING GEAR 3(12)
