HYDRAULIC RESERVOIR SEE A 
DRAIN VALVE 
FWD 
SEE B 
1. BOLT (4 LOCATIONS) 
HYDRAULIC RESERVOIR (EXAMPLE) 
2. WASHER 
A 
(4 LOCATIONS) 
3. DRAIN VALVE 
4. O-RING 
DRAIN VALVE 
B
Drain Valve Installation Figure 401 
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 29-11-22
 ALL  ú ú 01 Page 402 ú May 28/99 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A
757 
MAINTENANCE MANUAL
 S 864-006
 (5)  Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
 (a)  
11K15, HYDRAULICS ELEC PUMP C1
 (b)  
11K16, HYDRAULICS ELEC PUMP RIGHT
 (c)  
11K24, HYDRAULICS ELEC PUMP C2
 (d)  
11K25, HYDRAULICS ELEC PUMP LEFT
 S 684-007
 (6)  
Open the drain valve (3) on the reservoir.
S 684-008
 (7)  
Drain the hydraulic fluid from the reservoir into a container.
 D. Remove the Drain Valve
 S 024-009
 (1)  
Remove the bolts (1) from the drain valve (3).
S 024-010
 (2)  
Remove the drain valve (3).
S 034-011
 (3)  
Remove the O-ring (4) from the drain valve (3).
S 034-012
 (4)  
Install a cap on the opening in the reservoir.
 TASK 29-11-22-404-013
 3. Install the Drain Valve (Fig. 401)
_______________________
 A. Consumable Materials
 (1)  D00054 Hydraulic System Lubricant - MCS 352
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 29-11-22
 ALL  ú ú 01 Page 403 ú Dec 20/90 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
757 MAINTENANCE MANUAL
 B. Parts
 ~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt | 29-11-20 | 04 | 121 | | | | | | | 215 | | | | | 29-11-22 | 05 | 99 | | | 2 | Washer | 29-11-20 | 04 | 124 | | | | | | | 220 | | | | | 29-11-22 | 05 | 101 | | | 3 | Drain Valve | 29-11-20 | 04 | 118 | | | | | | | 225 | | | | | 29-11-22 | 05 | 103 | | | 4 | Packing | 29-11-20 | 04 | 127 | | | | | | | 230 | | | | | 29-11-22 | 05 | 105 | 2......…........…...................................…..........….....….........1
 C. References
 (1) 
AMM 06-41-00/201, Fuselage Access Doors and Panels
 (2) 
AMM 12-12-01/301, Hydraulic Systems
 (3) 
AMM 12-25-01/301, Exterior Cleaning
 (4) 
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic System
 (5) 
AMM 32-00-15/201, Landing Gear Door Locks
 D. 
Access
 (1)  
Location Zone
 143/144 MLG Wheel Well
 197 Wing to Body - Lower Half (Left)
 (2)  
Access Panels
 197KL Central Hydraulic Service Center
 E. 
Install the Drain Valve
 
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 2(5)