32-42-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 B. Parts
 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 205  |  1 | Screw | 32-42-02 | 11 | 80 | | | 2 | Filter Cover | | | 75 | | | 3 | Filter | | | 85 | | | 4 | O-ring | | | 115 | | | 5 | Screen Filter | | | 110 | | | 6 | O-ring | 32-42-02 | 04 | 75 | | | 7 | Reducer | | | 70 | | | 8 | Retainer | 32-42-02 | 11 | 105 | | | 9 | O-ring | | | 95 | | | 10 | Retainer | | | 100 | | | 11 | O-ring | | | 90 | 2......…........…...................................…..........…......…........1
 C. References
 (1)
AMM 29-11-00/201, Main Hydrualic Supply System

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

 D.
Access

 (1)
Location Zones

 137  Body Landing Gear Well - Left
 (Aft bulkhead, body gear wheel well)
 Normal Antiskid Module - Left Body Gear
 138  Body Landing Gear Well - Right
 (Aft bulkhead, body gear wheel well)
 Normal Antiskid Module - Right Body Gear
 571 Rear Spar to Landing Gear Support Beam, LH
 (Above the wing gear trunion)
 Normal Antiskid Module - Left Wing Gear
 671  Rear Spar to Landing Gear Support Beam, RH (Above the wing gear trunion) Normal Antiskid Module - Right Wing Gear
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 E. Procedure (Fig. 205)
 S 492-119
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS 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).

 S 492-214

 (2)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 S 642-120

 (3)  
Lubricate the new O-rings (9 and 11) and the retainers (8 and 10) with clean hydraulic fluid.

 S 432-121
 CAUTION: BE CAREFUL TO KEEP CONTAMINATION OUT OF THE PORTS OF THE
_______ ANTISKID MODULE. CONTAMINATION CAN CAUSE A MALFUNCTION OF THE NORMAL ANTISKID MODULE.
 (4)  
Install the new O-rings (11) and the retainers (10) on the input filter (3).

 S 422-123

 (5)
Install the input filter (3) into the normal antiskid module.

 S 432-124

 (6)  
Install the new O-rings (9) and the retainers (8) on the filter cover (2).

 S 412-125

 (7)  
Install the filter cover (2) into the normal antiskid module with the 4 screws (1).

 (a)  
Tighten the screws to 100-110 pound-inches.

 S 132-126
 (8)  Clean the screen filter (5) in the metered pressure inlet port of the normal antiskid module with these steps:
 NOTE: It is recommend that you clean the screen filter (5) on the
____ metered pressure inlet port each time the input filter is replaced.
 (a)  Disconnect the hydraulic line from the screen filter (5).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 (b)  
Install a plug on the hydraulic line.

 (c)  
Remove the screen filter (5) from the normal antiskid module.

 (d)  
Remove and discard the O-ring (4) from the screen filter (5).

 (e)  
　
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