757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 3(40)

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 (approximately 600 RPM required) and make sure that the tandem
 brake (locked wheel pair of the wheel that you do this test on)
 releases.
 NOTE: The transducer spinup equipment tool can be used to____
 rapidly turn the transducer. The locked wheel pairs are
 the wheels that are in tandem (wheels 1-5, 2-6, 3-7, and
 4-8).
 (f)  Stop the movement of the transducer as quickly as possible.
 Make sure that the brake for that wheel releases and then
 applies again. Make sure that the tandem brake also applies
 again.
 (g)  Remove power from the right hydraulic system if it is not
 necessary (AMM 29-11-00/201).
 (h)  Remove the DO-NOT-CLOSE tag and close this circuit breaker on
 the P6 panel:
 1) 6F4, LANDING GEAR PARKING BRAKE VLV

 S 434-021
 (14)
 Install the hubcap (1) with three mounting bolts (8), the washer (13) and the nuts (14).

 S 864-022

 (15)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).

 

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757 MAINTENANCE MANUAL
 ANTISKID SHUTTLE VALVE MODULE AND COMPONENTS - REMOVAL INSTALLATION
___________________________________________________________________
 1.  General
_______
 A.  This procedure contains six tasks. The tasks are as follows:
 (1)  
Antiskid Shuttle Valve Module - Removal

 (2)  
Antiskid Shuttle Valve Module - Installation

 (3)  
Antiskid Shuttle Valve - Removal

 (4)  
Antiskid Shuttle Valve - Installation

 (5)  
Filter - Removal

 (6)  
Filter - Installation

 B.  
You do not need to remove the module or disconnect the hydraulic lines to remove the shuttle valves or the filters from the module.

 TASK 32-42-07-844-059
 2.  Prepare for Removal
___________________
 A.  References
 (1)  
24-22-00/201, Electrical Power - Control

 (2)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic Systems

 (3)  
32-00-15/201, Landing Gear Door Locks

 (4)  
32-00-20/201, Landing Gear Downlocks

 B.  
Access

 (1)  
Location Zones
 143 Left Main Landing Gear Wheel Well
 144 Right Main Landing Gear Wheel Well

 C.  
Procedure

 S 494-042
 (1)  
Make sure that chocks are installed on the wheels.

 S 494-043

 (2)  
Make sure that the landing gear downlocks are installed (Ref 32-00-20).

 S 494-044
 ú WARNING:_______USE THE PROCEDURE IN AMM 32-00-15 TO INSTALL THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Open the doors for the landing gear and install the door locks (Ref 32-00-15).

 (4)  
Supply electrical power (Ref 24-22-00).

 (5)  
Release the parking brake.

 S 864-045
 S 864-046
 

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757
MAINTENANCE MANUAL

ANTISKID SHUTTLE 
VALVE MODULE 
SEE  B 
WHEEL WELL 
CEILING (REF) 
MAIN GEAR 
UPLOCK 
ANTISKID SHUTTLE  ASSEMBLY 
VALVE MODULE  (REF) 
SEE  A 

OUTBD  FWD 
MODULE (REF) HYDRAULIC LINE FROM THE ALTERNATE ANTISKID  LEFT WHEEL WELL SHOWN, RIGHT WHEEL WELL EQUIVALENT 
MODULE  MOUNTING SUPPORT (REF)  A 

HYDRAULIC LINES FROM THE NORMAL ANTISKID SHUTTLE
ANTISKID MODULE VALVE MODULE
(REF)
ADAPTER

COMPONENTS
FITTING BOLT SEE C
(4 LOCATIONS) (4 LOCATIONS)
HYDRAULIC LINES
TO BRAKES (REF)

OUTBD FWD
ANTISKID SHUTTLE VALVE MODULE INSTALLATION
ON LEFT WHEEL WELL SHOWN
INSTALLATION FOR RIGHT WHEEL WELL EQUIVALENT

B
Antiskid Shuttle Valve Module/Component Installation Figure 401 (Sheet 1)

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757
MAINTENANCE MANUAL

(4 LOCATIONS) SHUTTLE VALVE 
ALTERNATE ANTISKID LINE FROM THE MODULE (REF) HYDRAULIC  SLIDE PLUG (REF) 
　
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