S 424-051
(2)
Install the flat washer (8).
S 424-052
(3)
Install the tab-type washer (2).
S 424-053
(4)
Install and torque the nut (3) to 1200 +/- 100 pound-inches.
S 914-054
(5)
Bend down the tabs on the tab-type washer (2).
S 424-066
(6)
Put the pull-in hook (1) in the rigged open position and install the bellcrank (4) on the pull-in hook (1). Install the bolt (5), washer (6) and the nut (7).
NOTE:____Do not force the bolt (5) in the bellcrank (4). The notch in the pull-in hook must fully align with the holes in the bellcrank. This notch makes sure the bellcrank (4) is installed in the correct position.
S 824-011
(7) Do the Adjust Door Hook Mechanism procedure (Ref 52-34-00/501).
NOTE: This procedure will adjust the pull-in hooks in the rigged
____ closed position and then in the rigged open position.
S 434-012
(8)
Make sure the nut (7) is tight.
(9)
Install the cargo door maintenance access panel if it was removed.
S 414-023
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747-400 MAINTENANCE MANUAL
S 414-024
(10)
Install the lower door lining if it was removed.
S 864-019
(11)
Close the applicable circuit breakers 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
S 864-020
(12) Electrically close the cargo door (Ref 52-34-00/001).
TASK 52-34-24-024-028
4. Remove the Cargo Door Hook Pin (Fig 402)
A. References
(1)
AMM 52-34-00/001, Forward/Aft Cargo Doors
B.
Access
(1)
Location Zone
122 Forward Cargo Container Compartment
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
C.
Procedure
S 864-029
(1) Electrically open the cargo door to get access to the hook pin (3) (AMM 52-34-00/001).
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747-400
MAINTENANCE MANUAL
PULL-IN HOOK
(2 LOCATIONS)
SEE A
CARGO DOOR
(FORWARD CARGO DOOR SHOWN,
AFT CARGO DOOR ALMOST THE SAME)
Cargo Door Pull-In Hook
Figure 401 (Sheet 1)
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E89218
A
747-400
MAINTENANCE MANUAL
PULL-IN HOOK 1. CARGO DOOR
WASHER 2. TAB TYPE 3. NUT
8. FLAT WASHER
5. BOLT (2 LOCATIONS) 7. NUT 4. BELLCRANK 6. WASHER
A AFT PULL-IN HOOK ALMOST THE SAME) CARGO DOOR PULL-IN HOOK (FORWARD PULL-IN HOOK SHOWN,
Cargo Door Pull-In Hook Figure 401 (Sheet 2)
E89223
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