(10)
Make sure there are no leaks at the control valve. S 864-022
(11)
Put the manual control switch for the PTU to the OFF position. S 214-023
(12)
Make sure the valve position indicator moves to the CLOSE position.
S 114-024 CAUTION: QUICKLY CLEAN THE INSTALLATION AREA OF ALL HYDRAULIC FLUID.
_______ HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE AIRPLANE EQUIPMENT.
(13)
Clean all hydraulic fluid from the installation area (AMM 12-25-01/301).
S 614-025
(14)
Fill the reservoir in the right hydraulic system (AMM 12-12-01/301).
S 094-026 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.
(15) Remove door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
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757
MAINTENANCE MANUAL
S 864-027
(16)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
S 864-028
(17)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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757 MAINTENANCE MANUAL
POWER TRANSFER UNIT (PTU) CASE DRAIN FILTER MODULE AND COMPONENTS -
___________________________________________________________________ REMOVAL/INSTALLATION
____________________
1. General_______
A. This procedure has two tasks. One task removes the filter module for the case drain of the power transfer unit (PTU). The other task installs the filter module.
TASK 29-22-05-004-001
2. Remove the Filter Module and Components (Fig. 401)_______________________________________
A. General
(1)
This task contains procedures which remove the components which follow:
(a)
Filter module
(b)
Filter element
(c)
Check valve
(d)
Differential Pressure Indicator
(2)
To start one of these procedures, do the "Prepare for the 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, Landing Gear Door Locks
(3)
AMM 32-00-20/201, Landing Gear Downlocks
C. Access
(1) Location Zone
143 Left MLG Wheel Well
D. Prepare for the Removal
S 494-002
(1) Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
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