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S 864-050
(15)
Pressurize the center hydraulic system and the reservoir (AMM 29-11-00/201).
S 794-051
(16)
Make sure there are no leaks at the reservoir.
S 414-052
(17)
Close the access panel, 197KL, for the central hydraulic service center (AMM 06-41-00/201).
S 864-053
(18)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
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RESERVOIR DRAIN VALVE - REMOVAL/INSTALLATION
____________________________________________
1. General
_______
A. This procedure has two tasks. One task removes the drain valve on the reservoirs in the left, right, or center hydraulic systems. The other task installs the drain valve.
TASK 29-11-22-004-001
2. Remove the Drain Valve (Fig. 401)
______________________
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 System
(3)
AMM 32-00-15/201, Landing Gear Door Locks
(4)
AMM 32-00-20/201, Landing Gear Downlocks
B. Access
(1)
Location Zone
143/144 MLG Wheel Well
197 Wing to Body - Lower Half (Left)
(2)
Access Panels
197KL Central Hydraulic Service Center
C. Prepare for the Removal
S 494-002
(1) For the left or right hydraulic system, make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
S 494-003
WARNING: DO 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 TO EQUIPMENT.
(2)
For the left or right hydraulic system, open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
S 014-004
(3)
For the center hydraulic system, open the access panel, 197KL, for the central hydraulic service center (AMM 06-41-00/201).
S 864-005
(4)
Remove the pressure from the applicable hydraulic system and the reservoir (AMM 29-11-00/201).
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757
MAINTENANCE MANUAL
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