757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 2(33)

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____________________________________________________
 1.  General_______
 A.  This procedure contains two tasks. One task removes the selector valve to fill the reservoirs. The other task installs the selector valve to fill the reservoirs.
 TASK 29-18-02-024-001
 2.  Remove the Selector Valve to Fill the Reservoirs________________________________________________
 A.  References
 (1)  
AMM 06-41-00/201, Fuselage Access Doors and Panels

 (2)  
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 B.  Access
 (1)  
Location Zones
 197 Wing to Body - Aft Lower Half (Left)
 211/212 Control Cabin

 (2)  
Access Panel
 197KL Central Hydraulic Service Center

 

 C.  Remove the Selector Valve (Fig. 401)
 S 014-002
 (1)  
Open the access door for the hydraulic service bay, 197KL, to get access to the selector valve (AMM 06-41-00/201).

 S 864-003

 (2)  
Open these circuit breakers on the overhead panel, P11, and install DO-NOT-CLOSE tags:

 (a)  
11K19, HYDRAULICS QTY CTR

 (b)  
11K20, HYDRAULICS QTY LEFT

 (c)  
11K21, HYDRAULICS QTY RIGHT

 

 S 864-004
 (3)  
Remove the pressure from the hydraulic systems and reservoirs (AMM 29-11-00/201).

 (4)  
Remove the electrical connector on the selector valve.

 (5)  
Remove the hydraulic lines and install caps on the lines.

 (6)  
Remove the mount bolts that hold the selector valve in its position.

 S 034-005
 S 034-006
 S 034-007
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 29-18-02
 ALL  ú ú 01 Page 401 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

AFT LEFT WING TO BODY FAIRING
SEE A
SELECTOR VALVE TO FILL  FWD 
THE RESERVOIRS 
SEE  B 
AFT LEFT WING TO BODY FAIRING
A 
BRACKET SUPPORT  LINE TO 
RIGHT SYSTEM 
UNION (3 LOCATIONS) 
LINE FROM 
FILL FILTER  LINE TO 
LEFT SYSTEM 
FWD 

FLOW DIRECTION
SPACER (3 LOCATIONS)
WASHER (3 LOCATIONS) (INSTALL WITH THE COUNTERSINK AGAINST THE BOLT HEAD)
LINE TO BOLT CENTER SYSTEM (3 LOCATIONS)
CHECK VALVE
SELECTOR VALVE (CENTER SYSTEM PORT ONLY)
SELECTOR VALVE TO FILL THE RESERVOIRS
B
Reservoir Fill Selector Valve Installation Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-18-02
 ALL  ú ú 01 Page 402 ú Dec 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 024-008
 (7)  
Remove the selector valve.

 S 034-009

 (8)  
Remove the three unions and one check valve from the selector valve ports.

 TASK 29-18-02-424-010
 3. Install the Selector Valve to Fill the Reservoirs
　
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