(4)
The fourth task is the installation of the cargo door hook pin.
TASK 52-34-24-024-027
2. Remove the Cargo Door Pull-In Hook
__________________________________
A. References
(1)
AMM 52-34-00/001, Forward/Aft Cargo Doors
(2)
AMM 52-34-00/801, Forward/Aft Cargo Doors - Approved Repairs
B.
Equipment
(1)
4MIT65B04308 Cargo Door Mechanism Torque Adapter
C.
Access
(1)
Location Zone 122 Forward Cargo Container Compartment, Forward Half 142 Aft Cargo Container Compartment
(2)
Access Panel
821R Door - Forward Cargo Compartment
821AR Cargo Door Maintenance Access Panel
821FR Cargo Door Maintenance Access Panel
822R Door - Aft Cargo Compartment
822AR Cargo Door Maintenance Access Panel
822FR Cargo Door Maintenance Access Panel
D.
Procedure
S 864-014
(1)
Electrically open the cargo door to get access to the pull-in hook (1) (AMM 52-34-00/001).
S 864-015
(2)
Open the circuit breakers for the applicable cargo door as follows:
(a)
P59 Aft Equipment Panel
1) AFT CARGO DOOR POWER UNITS
(b)
Power Distribution Center - Left
1) LOWER CARGO DOOR FWD
2) CARGO DOOR CONTROL FWD
3) CARGO DOOR CONTROL AFT
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A
747-400
MAINTENANCE MANUAL
S 014-022
(3) If you use the cargo door mechanism torque adapter tool to remove the hook, remove the applicable cargo door maintenance access panel.
NOTE: The cargo door maintenance access panels are located on the
____ door skin, outboard of the bellcrank (4).
S 014-021
(4)
If you do not use the cargo door mechanism torque adapter tool to remove the hook, remove the lower door lining (Fig. 401).
S 354-017
(5)
Drill the rigging pin holes in the hook support fittings if it is necessary (AMM 52-34-00/801).
S 024-004
(6)
Remove the bellcrank (4) from the pull-in hook (1).
S 354-018
(7)
Bend up the tabs on the tab-type washer (2).
S 034-005
(8)
Remove the nut (3).
S 034-006
(9)
Remove the tab-type washer (2).
S 034-007
(10)
Remove the flat washer (8).
S 024-008
(11)
Remove the cargo door pull-in hook (1) from the door.
TASK 52-34-24-424-026
3. Install the Cargo Door Pull-In Hook
___________________________________
A. References
(1)
AMM 52-34-00/001, Forward/Aft Cargo Doors
(2)
AMM 52-34-00/501, Forward/Aft Cargo Doors
B.
Equipment
(1)
4MIT65B04308 Cargo Door Mechanism Torque Adapter
C.
Access
(1)
Location Zone 122 Forward Cargo Container Compartment, Forward Half 142 Aft Cargo Container Compartment
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52-34-24
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(2)
Access Panel
821R Door - Forward Cargo Compartment
821AR Cargo Door Maintenance Access Panel
821FR Cargo Door Maintenance Access Panel
822R Door - Aft Cargo Compartment
822AR Cargo Door Maintenance Access Panel
822FR Cargo Door Maintenance Access Panel
D.
Procedure
S 864-050
(1)
Put the pull-in hook (1) in position in the door.
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