S 864-004
(3)
Remove the pressure from the left hydraulic system and hydraulic reservoir (AMM 29-11-00/201).
D.
Remove the Door-Operated Sequence Valve
S 034-005
(1)
Disconnect the hydraulic lines from the sequence valve.
S 494-006
(2)
Install plugs in the lines and fittings.
S 034-007
(3)
Remove the bolt to disconnect the valve linkage from the door actuator (Detail A).
S 024-008
(4)
Remove the bolts that attach the sequence valve to the structure. Remove the valve and linkage assembly.
TASK 32-32-05-404-009
3. Install the Door-Operated Gear Sequence Valve for the Main Landing Gear_______________________________________________________________________ (Fig. 401)
A. References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System
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(3)
AMM 32-00-15/201, Landing Gear Door Locks
B.
Access
(1)
Location Zone
143 Main Landing Gear Wheel Well
C.
Procedure
S 424-010
(1)
Install the bolts, washers, and nuts to attach the sequence valve and linkage assembly to the structure (Detail A). Install washers behind both the bolt heads and the nuts.
S 434-011
(2)
Install the bolt, washers, bushing, and nut to connect the valve linkage to the door actuator. Install the bushing behind the nut. Install washers behind both the bolt head and the nut.
S 434-012
(3)
Make sure the pressure is removed from the left hydraulic system and hydraulic reservoir (AMM 29-11-00/201). Connect the hydraulic lines to the sequence valve.
D.
Do a Check of the Sequence Valve for Correct Installation
S 864-017
(1)
Pressurize the left hydraulic system (AMM 29-11-00/201).
S 714-013
(2)
Move the control lever for the landing gear from UP to DN three or four times. Put the lever to the OFF position.
S 794-014
(3)
Examine the sequence valve for hydraulic leaks.
E.
Put the Airplane Back to Its Initial Condition
S 614-015
(1) Make sure the fluid in the hydraulic reservoir is at the correct level. Fill if it is necessary (AMM 12-12-01/301).
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S 094-018
WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Remove the door locks from the landing gear and close the doors (AMM 32-00-15/201).
S 864-019
(3)
Put the control lever for the landing gear to the DN position.
S 864-016
(4)
Remove the pressure from the hydraulic system if it is not necessary (AMM 29-11-00/201).
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MAIN GEAR DOWNLOCK-OPERATED DOOR SEQUENCE VALVE - REMOVAL/INSTALLATION
______________________________________________________________________
1. General
_______
A. This procedure has two tasks. The first task is for removal of the downlock-operated door sequence valve for the main landing gear. The other task is for installation of the door sequence valve.
TASK 32-32-07-004-001
2. Remove the Downlock-Operated Door Sequence Valve for the Main Landing Gear
__________________________________________________________________________
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
731 Main Landing Gear (Left)
741 Main Landing Gear (Right)
C.
Prepare for Removal
S 214-002
(1) Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
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本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 2(53)
