(b)
P59 Aft Lower Cargo Equipment Panel 1) BAY 9 RIGHT PDU 2) BAY 9 LEFT PDU 3) BAY 10 RIGHT PDU
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A
747-400 MAINTENANCE MANUAL
4) BAY 10 LEFT PDU
5) LATERAL GUIDE ACTUATOR
6) AFT LATERAL GUIDE
(c) P414 Main Power Distribution Center Panel - Left 1) 414F15 CARGO DOOR CONTROL FWD 2) 414F16 CARGO DOOR CONTROL AFT
S 014-009
(8)
Remove the structural door assembly with the splitter rail from the floor and Sta 664 and 1852 (BL 0.0).
S 014-045
(9)
Remove the ball-transfer panels as it is necessary
(Ref 25-53-15/401).
E. Remove the Guide Rail Actuator.
S 034-012
(1) Disconnect the electrical connector from the applicable guide rail
actuator. ~.................................................................. | CARGO | LATERAL | ELECTRICAL | GUIDE RAIL | | COMPARTMENT | GUIDE RAIL | CONNECTOR | ACTUATOR | .................................................................... | Forward | Fwd | DM495 | M495 | | | Aft | DM494 | M494 | .................................................................... | Aft | Fwd | DM157 | M157 | | | Aft | DM138 | M138 | 2.................….................…...............…..............1
S 034-013
(2)
Disconnect the rod end bearing for the actuator from the linkage.
(3)
Make sure the bushings in the linkage stay installed.
(4)
Disconnect the actuator from the actuator attach fitting.
S 214-041
S 034-043
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747-400 MAINTENANCE MANUAL
S 024-042
(5)
Remove the actuator.
S 034-015
(6)
If you will install a new actuator, remove the end fitting, the rod end bearing, and the jamnut.
TASK 25-53-12-404-016
3. Lateral Guide Rail Actuator Installation (Fig. 401)
________________________________________
A. Special Tools and Equipment
(1) 3PRE65B00040 Lower Cargo Door Opening Safety Barrier
B. Consumable Materials
(1) D00013 Grease, MIL-G-23827
C. References
(1)
24-22-00/201, Manual Control
(2)
25-53-00/501, Containerized Cargo Handling System
(3)
25-53-15/401, Ball Transfer Panel
(4)
25-53-21/201, Linear Actuator
(5)
52-34-00/001, Forward/Aft Cargo Doors
(6)
IPC 25-53-12, 25-53-14
(7)
SSM 25-53-01, 25-53-02
(8)
SSM 25-53-02
D. Access
(1) Location Zone 121 Forward Cargo Container Compartment Fwd Half, LH 122 Forward Cargo Container Compartment Fwd Half, RH 141 Aft Cargo Container Compartment, LH 142 Aft Cargo Container Compartment, RH
E. Prepare for the Installation.
S 864-017
(1) Supply electrical power (Ref 24-22-00/201).
S 014-044
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR
_______ OPERATION AREA. A FAILURE OF THE LIFT MECHANISM CAN CAUSE THE DOOR TO CLOSE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Open the cargo compartment door (Ref 52-34-00/001).
S 494-019
WARNING: MAKE SURE YOU ARE CAREFUL WHEN YOU ARE IN THE AREA OF AN OPEN
_______ DOOR. YOU MUST INSTALL THE SAFETY BARRIER IN THE OPEN DOORWAY IF IT IS NECESSARY TO PREVENT FALLS.
(3) Install the safety barrier in the open doorway if it is necessary.
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