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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 
747-400 
MAINTENANCE MANUAL 
CASTER PANEL ASSEMBLY  RETRACTABLE/STEERABLE  SIDE DOOR CARGO 
(16 LOCATIONS)  PDU 19R1 (REF)  TRANSFER AREA 
SEE  B  SEE  A 

SIDE CARGO DOOR (REF)
RETRACTABLE LONGITUDINAL GUIDE/STOP (3 LOCATIONS)
SEE B RETRACTABLE LATERAL GUIDE (16 LOCATIONS)
SEE B
RETRACTABLE 1LONGITUDINAL GUIDE/STOP
SIDE DOOR CARGO TRANSFER AREA
A
GUIDE/STOP LOCKPIN RELEASE LEVER
RETRACTABLE SHEAR PLUNGER
LATERAL GUIDE LEVER (4 LOCATIONS)
SEE C LATERAL GUIDE STOWAGE LOCK PLUNGER RELEASE LEVER
CASTER
SHEAR PLUNGER
"TEE" LEVER
IN LOCKED
POSITION
CASTER PANEL ASSEMBLY (EXAMPLE)
CASTERTENSION
B
PANELSTUD FITTING (8 LOCATIONS)
SHEAR PLUNGER LEVER
DLH COMBIS, INSTALLED ONLY THREE PLACES IN CASTER TRAYS FORWARD AND AFT OF PDU 19R1 AS PART OF SIREN 1
C7TH-PALLET POSITION CARGO SYSTEM Caster Panel Assembly Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 ELECTRICAL/ELECTRONIC BAY ACCESS PANEL - REMOVAL/INSTALLATION
_____________________________________________________________
 1.  General_______
 A.  This procedure contains these tasks:
 (1)  
Removal of the electrical/electronic bay access panel.

 (2)  
Installation of the electrical/electronic bay access panel.

 B.  The access panel is immediately forward of the power drive unit (PDU) position 4L, and is for in-flight access to the E/E bay.
 TASK 25-57-06-004-001
 2.  Electrical/Electronic Bay Access Panel Removal (Fig. 401)______________________________________________
 A.  Access
 (1)  Location Zone
 210 Main Deck

 B.  Procedure
 S 034-002
 (1)  
Pull the handle lock up to release the latch handle.

 S 034-003

 (2)  
Turn the latch handle until it stops to fully retract the latches from the latch plates.

 S 024-004
 WARNING: YOU MUST PUT A HANDRAIL OR BARRIER AROUND THE FLOOR WELL
_______ IMMEDIATELY AFTER YOU REMOVE THE ACCESS PANEL. IF YOU DO NOT PUT A HANDRAIL OR BARRIER AROUND THE FLOOR WELL, A PERSON OR EQUIPMENT CAN FALL AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  Remove the access panel.
 TASK 25-57-06-404-005
 3.  Electrical/Electronic Bay Access Panel Installation (Fig. 401)___________________________________________________
 A.  References
 (1)  24-22-00/201, Manual Control
 B.  Access
 (1)  Location Zone
 210 Main Deck

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A
747-400 MAINTENANCE MANUAL
 C. Procedure
 S 214-006
 (1)  
Make sure the floor well, latch plates, access panel mating surfaces and seal are clean and free of debris.

 S 434-007

 (2)  
Pull the handle lock up to release the latch handle.

 S 434-008

 (3)
Turn the latch handle until it stops to fully retract the latches.

 S 424-009

 (4)  
Put the access panel in its position in the floor well.

 S 714-010

 (5)  
Make sure the latch interlock switch is closed.

 S 864-011

 (6)  
Supply the electrical power (AMM 24-22-00/201).

 S 214-012

 (7)  
On the master cargo control panel, make sure the DRIVE DISABLED light is ON, CG- ALARM and CG-OFF lights are OFF.

 S 714-013

 (8)  
　
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