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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 MAINTENANCE MANUAL
ANTISKID SHUTTLE
VALVE MODULE FOR
THE WING GEAR

ANTISKID SHUTTLE VALVE MODULE FOR THE BODY GEAR ANTISKID SHUTTLE VALVE MODULE FOR
SEE A
THE WING GEAR
SHUTTLE VALVE BACKUP RING O-RING BACKUP RING O-RING BACKUP RING FILTER O-RING BACKUP RING
BACKUP RING O-RING BACKUP RING O-RING BACKUP RING
ANTISKID SHUTTLE VALVE MODULE
ANTISKID SHUTTLE VALVE MODULE FOR THE BODY GEAR
(WING GEAR IS EQUIVALENT)

A

Antiskid Shuttle Valve Module (Valve and Filter) Installation
Figure 201

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 492-022
 (2)  
Put a plug in the hole in the shuttle valve assembly.

 S 032-023

 (3)  
Remove O-rings and retainers from the filter.

 S 032-024

 (4)  
Discard the O-rings.

 TASK 32-42-14-402-008
 3. Antiskid Shuttle Valve and/or Filter - Installation
___________________________________________________
 A. Consumable Materials
 (1)  
C00272 Hydraulic Fluid - BMS 3-11

 B.
References

 (1)  
AMM 29-11-00/201, Main Hydrualic Supply System

 (2)  
AMM 32-00-30/201, Landing Gear Door Locks

 (3)  
AMM 32-41-00/201 Hydraulic Brake System

 (4)  
AIPC 32-42-07-05

 C.
Access

 (1)  
Location Zones

 137  Body Landing Gear Well - Left (Aft Bulkhead, Body Gear Wheel Well) Antiskid Shuttle Valve Assembly - Left Body Gear
 138  Body Landing Gear Well - Right (Aft Bulkhead, Body Gear Wheel Well) Antiskid Shuttle Valve Assembly - Right Body Gear
 571  Rear Spar to Landing Gear Support Beam, LH (above the wing gear trunion) Antiskid Shuttle Valve Assembly - Left Wing Gear
 671  Rear Spar to Landing Gear Support Beam, RH (above the wing gear trunion) Antiskid Shuttle Valve Assembly - Right Wing Gear
 D. Prepare for the Installation
 S 492-009
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK(S) BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 492-052
 (2)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 E.
Install the Antiskid Shuttle Valve (Fig. 201)

 S 642-011
 (1)  
Lubricate new O-rings with clean hydraulic fluid.

 S 432-025

 (2)  
Install O-rings and retainers on the shuttle valve.

 S 412-026
 CAUTION: BE CAREFUL TO KEEP CONTAMINATION OUT OF THE SHUTTLE VALVE
_______ ASSEMBLY. IT CAN CAUSE A MALFUNCTION OF THE SHUTTLE VALVE.
 (3)  
Install the shuttle valve into the shuttle valve assembly.

 S 432-027

 (4)  
Install the cap and tighten.

 S 492-028

 (5)  
Install lockwire.

 S 862-029
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (6)  
Pressurize hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
　
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