D.
References
(1)
52-32-00/001, Side Cargo Door
(2)
52-32-00/501, Side Cargo Door
(3)
52-32-04/401, Gearbox and Brake Assembly
(4)
AIPC 52-32-02 Fig 1, AIPC 52-32-06 Fig 2, AIPC 52-32-09 Fig 2, AIPC 52-32-11 Fig 2
(5)
SSM 52-32-01
(6)
WDM 52-32-11, 52-32-21
E.
Access
(1)
Location Zone
261 Main Deck STA 1720 To STA 2040, LH
(2)
Access Panels
261AL Access Door, Cargo Door Switch
836L Door, Main Deck Cargo
F.
Procedure
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52-32-00
ALL ú ú 02 Page 601 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
LIFT POWER
UNIT GEARBOX AND
BRAKE ASSEMBLY
(2 LOCATIONS)
SEE C
ROTARY ACTUATOR
ARM AND LINK
(2 LOCATIONS)
SEE A
PRESSURE
MIDSPAN LATCH CAM (2 LOCATIONS) RELIEF DOOR
SEE D
MANUAL
DRIVE
GEARBOX
MASTER LATCH
LOCK HANDLE HOOK ACTUATOR
SEE B LATCH (2 LOCATIONS)
ACTUATOR
LATCHES OPEN SWITCH
(2 LOCATIONS) HOOK FITTINGS LATCH STOP
LATCH CAM (10 LOCATIONS)
Side Cargo Door System Inspection/Check
Figure 601 (Sheet 1)
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52-32-00
ALL ú ú 02 Page 602 ú Feb 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
DOOR DOWN STOP
UPSTOP CLEARANCE ROTARY
1 3 ACTUATOR DOWNSTOP CLEARANCE
ROTARY 1 2
ACTUATOR
ROTARY ACTUATOR LINK
ROTARY ROTARY ACTUATOR ACTUATOR ARM ARM
THE DOOR IS IN THE DOOR IS IN THE OPEN POSITION THE CLOSED POSITION ROTARY ACTUATOR ARM AND LINK
A
70 POUND MAXIMUM
0.50 INCH FORCE
90`
INTERIOR HANDLE
90` 45 POUND MAXIMUM
EXTERIOR FORCE
HANDLE DOOR
OUTER UP1 0.20 |0.01 INCH (MANUALLY SKIN
SET THIS DIMENSION)
2 0.06 TO 0.18 INCH (MEASURE OUTBD
THIS DIMENSION WHEN THE DOOR STOPS AFTER CORRECT ELECTRICAL OPERATION)
MASTER LATCH LOCK HANDLE 3
0.09 TO 0.21 INCH (MEASURE THIS DIMENSION WHEN THE DOOR B STOPS AFTER CORRECT ELECTRICAL OPERATION)
Side Cargo Door System Inspection/Check Figure 601 (Sheet 2)
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52-32-00
ALL ú ú 02 Page 603 ú Feb 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
MID-SPAN LATCH CAM
Side Cargo Door System Inspection/Check
Figure 601 (Sheet 3)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
52-32-00
ALL ú ú 02 Page 604 ú Feb 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
MASTER LATCHFWDLOCK MECHANISM
SEE A
PRESSURE
PRESSURE RELIEF
RELIEF DOOR
DOOR TORQUE
TUBE
EXTERIOR MASTER LATCH LOCK HANDLE
INTERIOR MASTER
LATCH LOCK
HANDLE
B
A A
MASTER B
MASTER LATCH LOCKLATCH CAM LATCH LOCK
(10 LOCATIONS) TORQUE TUBE
SECTOR (10 LOCATIONS) MASTER LATCH LOCK MECHANISM
SEE B A
Master Latch Lock System Inspection/Check Figure 602 (Sheet 1)
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