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A
757 MAINTENANCE MANUAL
S 864-063
(33)
Set the R ELEC PUMP switch, on the overhead panel, P5, to the OFF position.
S 724-064
(34)
Make sure the EICAS message POWER XFER UNIT does not show on the status or maintenance display.
S 864-065
(35)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
S 164-066
(36)
Clean all hydraulic fluid from the installation area (AMM 12-25-01/301).
S 614-067
(37)
Fill the reservoirs in the left and right hydraulic systems (AMM 12-12-01/301).
CAUTION:_______ QUICKLY CLEAN ALL OF THE HYDRAULIC FLUID FROM THE INSTALLATION
AREA. HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE AIRPLANE
EQUIPMENT.
S 094-036
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.
(38) Remove door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
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A
757 MAINTENANCE MANUAL
POWER TRANSFER UNIT (PTU) PRESSURE FILTER MODULE AND COMPONENTS -
_________________________________________________________________ REMOVAL/INSTALLATION
____________________
1. General_______
A. This procedure has two tasks. One task removes the filter module and the components for the pressure of the power transfer unit (PTU). The other task installs the filter module and the components.
TASK 29-22-02-004-001
2. Remove the Filter Module and the Components (Fig. 401)___________________________________________
A. General
(1)
This task contains procedures which remove the components which follow:
(a)
Filter module for the pressure of the power transfer unit
(b)
Filter element
(c)
Pressure switches
(d)
Check valve
(e)
Differential pressure indicator.
(2)
To start one of these procedures, do the "Prepare for Removal" group of steps. Then, do the applicable group of steps that is necessary to remove the component.
B. References
(1)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(2)
AMM 32-00-15/201, Main Gear Door Locks
(3)
AMM 32-00-20/201, Landing Gear Downlocks
C. Access
(1) Location Zone
143 MLG Wheel Well
D. Prepare for Removal
S 494-002
(1) 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)
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
S 864-004 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(139)
