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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL
(b) For an aluminum joystick handle; use the adhesive BMS 5-92, Type I or Type III.
G. Put the Airplane Back to Its Usual Condition
S 098-007
(1)
Remove the safety barrier (3PRE65B00040) from the opening of the cargo compartment door if it is not necessary.
S 418-008
(2)
Close the cargo compartment door (Ref 52-34-00/001).
S 868-009
(3)
Remove the electrical ground power if it is not necessary (Ref 24-22-00/201).
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747-400 MAINTENANCE MANUAL
BALL UNIT - REMOVAL/INSTALLATION
________________________________
1. General_______
A. This procedure contains these tasks:
(1)
Removal of the ball unit from the ball transfer panel.
(2)
Installation of the ball unit in the ball-transfer panel.
B. The ball unit has these components:
(1)
A large diameter ball
(2)
Small ball bearings
(3)
A housing for the ball bearings
(4)
Two tabs
(5)
A ball unit retainer
TASK 25-53-18-004-001
2. Ball Unit Removal (Fig. 401)_________________
A. Special Tools and Equipment
(1) 3PRE65B00040 Lower Cargo Door Opening Safety Barrier
B. References
(1)
24-22-00/201, Manual Control
(2)
52-34-00/001, Forward/Aft Cargo Doors
(3)
IPC 25-53-15
C. Access
(1) Location Zone
100 Lower Half of Fuselage
D. Prepare for the Removal
S 864-002
(1)
Supply electrical ground power (Ref 24-22-00/201).
(2)
Open the cargo compartment door (Ref 52-34-00/001).
S 014-003
S 494-025
WARNING: BE CAREFUL WHEN YOU ARE NEAR THE OPENING OF THE CARGO
_______ COMPARTMENT DOOR. INSTALL A SAFETY BARRIER (3PRE65B00040) ACROSS THE OPENING OF THE DOOR UNLESS AN ACCESS STAND IS AT THE DOOR. INJURY TO PERSONS CAN OCCUR IF THEY FALL THROUGH THE OPENING OF THE DOOR.
(3) Install a safety barrier (3PRE65B00040) across the opening of the cargo compartment door if it is necessary.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL
BALL UNIT
SEE A
BALL TRANSFER PANEL
(EXAMPLE)
BOLT AND WASHER FWD LOCATIONS (EXAMPLE)
BALL TRANSFER PANEL (EXAMPLE)
RETAINER
BALL BEARING
NOTE:____ ARRANGEMENT IS EQUIVALENT. ARRANGEMENT IS SHOWN, FORWARD COMPARTMENT PANEL AFT COMPARTMENT PANEL BALL CUP A (EXAMPLE) BALL UNIT
Figure 401 Ball Unit Installation
L46460
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