(1)  
20-10-24/201, Rig Pins

 (2)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (3)  
32-00-15/201, Landing Gear Door Locks

 (4)  
32-00-20/201, Landing Gear Downlocks

 (5)  
32-41-00/201, Hydraulic Brake System

 (6)  
32-41-00/501, Hydraulic Brake System

 D.
Access

 (1)  
Location Zones
 143 Left MLG Wheel Well
 144 Right MLG Wheel Well

 E.
Procedure

 S 214-017
 (1)  Examine the filler screens in the filtered reducers for contamination.
 

 32-41-03
 ALL  ú ú 01A Page 405 ú Dec 20/95
 
A

757
MAINTENANCE MANUAL

 (2)  S 644-018Lubricate the new O-rings and hydraulic fittings.
 (3)  S 434-019Assemble the O-rings and hydraulic fittings and install in the metering valve ports.
 (4)  S 614-020Fill the metering valve with hydraulic fluid and put caps on the fittings at the hydraulic ports.
 (5)  S 424-021Hold the metering valve assembly to the metering valve support and install the bolts.
 (6)  S 424-037Connect the valve crank to the valve spindle.
 (7)  S 434-023Connect the valve crank to the control rod.
 (8)  S 094-024Remove the caps on the valve hydrualic ports and the hydraulic lines.
 (9)  S 434-025Connect the hydraulic lines to the valve ports (7 locations).
 S 084-026

 (10)
 Remove rig pin LGB4/LGB5.

 S 864-027

 (11)
 Pressurize the right and left hydraulic systems and reservoirs (Ref 29-11-00).

 S 874-028

 (12)
 Bleed the brake system (Ref 32-41-00).

 32-41-03
 ALL  ú ú 01A Page 406 ú Jun 20/90
 
A

757 MAINTENANCE MANUAL
 S 794-029
 (13)
 Do a check for leaks at the hydraulic line connections.

 S 714-030

 (14)
 Do an operational test of the hydraulic brake system (Ref 32-41-00).

 F.
Put the Airplane Back to Its Usual Condition

 S 864-031
 (1)  
Remove the DO-NOT-OPERATE tag from the parking brake handle and set the parking brake.

 S 864-032

 (2)
Remove electrical power if it is not necessary (Ref 24-22-00).

 S 094-033
 ú WARNING:_______USE THE PROCEDURE IN AMM 32-00-15 TO REMOVE THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  Remove the door locks from landing gear doors and close the doors (Ref 32-00-15).
 

 32-41-03
 ALL  ú ú 01A.1 Page 407 ú Sep 28/02
 
A
757 MAINTENANCE MANUAL
 ALTERNATE BRAKE SELECTOR VALVE - REMOVAL/INSTALLATION
_____________________________________________________
 1.  General
_______
 A.  There are two tasks in this procedure. There is a task for the removal and a task for the installation of the alternate brake selector valve.
 TASK 32-41-04-004-001
 2.  Remove the Alternate Brake Selector Valve (Fig. 401)
_________________________________________
 A.  References
 (1)  
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (2)  
AMM 32-00-15/201, Landing Gear Door Locks

 (3)  
AMM 32-00-20/201, Landing Gear Downlocks

 B.  
Access

 (1)  
Location Zones
 211 Control Cabin, Left
 212 Control Cabin, Right
 731 Landing Gear Left
 741 Landing Gear Right

 C.  
Procedure

 S 864-002
 (1)  Make sure that the landing gear downlocks are installed (AMM 32-00-20/201).
 S 484-029
 WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE OR EQUIPMENT.
 (2)  Open the landing gear doors and install the door locks (AMM 32-00-15/201).
 NOTE: Both nose and main gear doors open at same time by ground
____
 release.

 S 864-004
 (3)  
Make sure that the right and left hydraulic systems and reservoirs are depressurized (AMM 29-11-00/201).

 (4)  
Release the parking brakes.

 S 864-006
　
中國(guó)航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機(jī)維護(hù)手冊(cè) 起落架 CHAPTER 32 - LANDING GEAR 2(148)