S 864-021
(10)
Remove the pressure from the left hydraulic system (Ref 29-11-00).
S 944-022
(11)
Do the steps in the Return the Airplane to Its Usual Condition if more maintenance is not necessary.
TASK 32-42-07-004-023
5. Antiskid Shuttle Valve - Removal (Fig. 401)
________________________________
A. Procedure
S 944-060
CAUTION: DO NOT LET DIRT OR OTHER CONTAMINATION GET IN THE PORTS
_______ OF THE MODULE. THIS CAN CAUSE A MALFUNCTION OF THE UNIT.
(1)
Do the Prepare for Removal procedure (Ref Par. 2)
S 024-024
(2)
Turn the valve until the threads on the valve do not engage the mating threads in the module and remove the valve.
S 034-025
(3)
Remove the retainers and the O-rings from the valve. Discard the O-rings.
TASK 32-42-07-404-049
6. Antiskid Shuttle Valve - Installation (Fig. 401)
_____________________________________
A. Consumable Materials
(1)
D00153 Hydraulic Fluid - BMS 3-11
B.
References
(1)
29-11-00/201, Pressurize/Depressurize Main Hydraulic Systems
C.
Access
(1)
Location Zones
143 Left Main Landing Gear Wheel Well
144 Right Main Landing Gear Wheel Well
D.
Procedure
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757 MAINTENANCE MANUAL
S 434-028
CAUTION:_______RUBBER AND TEFLON O-RINGS ARE NOT INTERCHANGEABLE. FAILURE TO INSTALL TEFLON O-RINGS CAN CAUSE TRANSFER OF HYDRAULIC FLUID FROM THE NORMAL BRAKE SYSTEM TO THE ALTERNATE BRAKE SYSTEM.
(1)
Lubricate the O-rings (new) and the retainers with hydraulic fluid and install them on the valve.
S 424-050
(2)
Install the valve in the module, tighten to 300 pound-inches and install a lockwire.
S 864-051
(3)
Pressurize the right hydraulic system and reservoir (Ref 29-11-00).
S 794-052
(4)
After five minutes, do a check of the valve installation for leaks.
S 714-053
(5)
Do an operational test of the valve as follows:
(a)
Do the test in Par. 4.D.(9). again but only do a check to make sure that the brake operates that gets pressure through the hydraulic line from the valve that you replaced.
S 944-054
(6) Do the steps in the Return the Airplane to Its Usual Condition procedure if more maintenance is not necessary.
TASK 32-42-07-004-031
7. Antiskid Shuttle Valve Filter - Removal (Fig. 401)_______________________________________
A. Procedure
S 864-062
(1) Do the Prepare for Removal procedure (Ref Par. 2)
S 424-055
CAUTION: DO NOT LET DIRT OR OTHER UNWANTED MATERIAL GET IN
_______ THE PORTS OF THE FILTER. IF THIS HAPPENS, A MALFUNCTION OF THE VALVE CAN OCCUR.
(2)
Turn the filter counterclockwise until you can remove it from the module.
S 434-030
(3)
Remove the retainers and the O-rings from the filter. Discard the O-ring.
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TASK 32-42-07-404-032
8. Antiskid Shuttle Valve Filter - Installation (Fig. 401)
____________________________________________
A. Consumable Materials
(1)
D00153 Hydraulic Fluid - BMS 3-11
B.
References
(1)
29-11-00/201, Pressurize/Depressurize Main Hydraulic Systems
C.
Access
(1)
Location Zones
143 Left Main Landing Gear Wheel Well
144 Right Main Landing Gear Wheel Well
D.
Procedure
S 644-033
(1)
Lubricate the O-rings (new) and the retainers with hydraulic fluid and install them on the filter.
S 424-034
(2)
Install the filter in the module, tighten to 300 pound-inches and install a lockwire.
S 864-056
(3)
Pressurize the right hydraulic system and reservoir (Ref 29-11-00).
S 794-035
(4)
After five minutes, do a check of the filter installation for leaks.
S 944-057
(5)
Do the steps in the Return the Airplane to Its Usual Condition paragraph if more maintenance is not necessary.
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本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 3(42)
