S 494-058

 (3)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 S 844-004

 (4)  
Release the pressure from the hydraulic system No. 1 and No. 4 (AMM 29-11-00/201).

 F.
Procedure

 S 034-005
 (1)  
Remove the downlock actuator (AMM 32-32-15/401).

 S 034-006

 (2)
Disconnect the hydraulic lines from the hydraulic swivel (1).

 NOTE: Put a cap on the lines and the fittings.
____
 S 034-007
 (3)  Remove the short lines upstream of the swivel to permit clearance for the spindle removal.
 NOTE: Put a cap on the fittings.
____
 S 034-055
 (4)  
Pull the hydraulic lines through the hose clamps.

 S 034-009

 (5)  
Remove the screws to disconnect the primary and the alternate downlock sensors (3).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 03 Page 404 ú Oct 18/99
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A
747-400 MAINTENANCE MANUAL
 S 034-010
 (6)  
Release two 1/4 turn cam locks to remove the cover from the junction shield (5).

 (a)  
Disconnect the junction shield from the jury strut.

 S 034-011
 (7)  
Loosen the conduit clamp (7) at the spindle (6).

 (a)  
Attach the conduit (8), the junction shield (5), the conduit

 (4)
 and the sensors (3) to the shock strut.

 S 494-012
 (8)  
Release the weight of the airplane from the landing gear (AMM 07-11-01/201).

 S 494-013

 (9)  
Attach the bungee clamp to the downlock bungee.

 S 494-014
 WARNING: MAKE SURE YOU HOLD THE PARTS SUFFICIENTLY BEFORE YOU REMOVE THE
_______ JOINT PINS. THE SIDE STRUT COMPONENT WEIGHS APPROXIMATELY 305 POUNDS. THE BUNGEE IS SPRING-LOADED. FAILURE TO DO THAT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (10)
 Attach the sling to the strut component assembly and hold it with the hoist.

 S 034-015

 (11)
 Remove three nuts and the bolts to disassemble the side plates (10) of the truck lock and the related components.

 S 034-016

 (12)
 Remove the lockbolt, the spindle bolt (16) and the truck lock components.

 S 034-017

 (13)
 Disconnect the spindle (6) from the shock strut.

 (14)
 Remove the spindle nut and the washer for the upper side strut.

 S 024-019

 (15)
 Pull the spindle (2) from the structure and remove the strut component assembly from the airplane.

 S 034-018
 TASK 32-11-27-404-020
 3.  Wing Gear Side Strut Component Assembly Installation (Fig. 401)_____________________________________________________
 A. Special Tools and Equipment
 (1)  
G32031 Sling Assembly

 (2)  
F70312-24 - Torque Wrench Adapter

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 03 Page 405 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (3)  
2MIT65B08803-1 - Downlock Bungee Clamp

 B.
Standard Tools and Equipment

 (1)  
Portable hoist, 1000-pound capacity

 C.
Consumable Materials

 (1)  
D00633 Grease - BMS 3-33 (preferred)

 (2)  
D00013 Grease - MIL-G-23827 (optional)

 D.
References

 (1)  
AMM 07-11-01/201, Jacking Airplane

 (2)  
AMM 09-11-00/201, Towing

 (3)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (4)  
AMM 32-00-30/201, Landing Gear Door Locks

 (5)  
AMM 32-11-05/601, Wing Gear Side Strut Upper Spindle

 (6)  
AMM 32-11-07/201, Wing Gear Side Strut Lower Spindle
　
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