757 MAINTENANCE MANUAL
(2) Access Panels
197KL Central Hydraulic Service Center
E. Install the Return Filter Module (Fig. 401)
S 424-013
(1)
Put the return filter module in position.
S 424-014
(2)
Install the three bolts and washers which attach the return filter module to the support bracket.
S 644-015
(3)
Lubricate the O-rings and the fitting threads with hydraulic system lubricant or hydraulic fluid.
S 434-016
(4)
Connect and tighten the hydraulic lines to the return filter module.
F. Install the Filter Element (Fig. 401)
S 164-017
(1)
Clean the filter element case.
S 644-018
(2)
Apply hydraulic system lubricant or hydraulic fluid to the new O-rings and the threads on the filter element case.
S 434-019
(3)
Assemble the filter element, the O-rings, and the filter case.
S 424-020
(4)
Install the filter element and case assembly into the return filter module.
(5)
Tighten the filter element case to 20-25 pound-feet.
(6)
Safety the filter element case with a lockwire.
S 434-021
S 434-022
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
G. Install the Return Filter Module Components (Fig. 401)
NOTE: The steps which follow are applicable to the check valves, the
____ relief valve, the differential pressure indicator, and the ground service connector.
S 644-023
(1)
Apply hydraulic system lubricant or hydraulic fluid to the O-rings, the backup rings and the threads on the component.
S 434-024
(2)
Install the new O-rings and backup rings on the component, if it is applicable.
S 434-025
(3)
Remove the plug from the opening in the return filter module.
S 434-026
(4)
Install the component in the return filter module and tighten as follows:
(a)
Tighten the check valves to 35-40 pound-feet.
(b)
Tighten the relief valve to 60-75 pound-feet.
(c)
Tighten the differential pressure indicator to 15-20 pound-feet.
(d) 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 1(201)
