(9)
Install the sidewall lining panels you removed, as necessary (AMM 25-52-01/401).
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747-400 MAINTENANCE MANUAL
CONTAINERIZED CARGO COMPARTMENT INSULATION-INSPECTION/CHECK
___________________________________________________________
1. General_______
A. There is one task in this procedure. The task is a visual inspection/check of the insulation blankets installed in the forward and aft cargo compartments.
TASK 25-52-04-206-001
2. Do an Inspection/Check of the Insulation Blankets_________________________________________________
A. References
(1)
25-00-00/801, Equipment/Furnishings
(2)
25-52-01/401, Containerized Cargo Compartment Ceiling and Sidewall Linings
(3)
25-52-04/401, Containerized Cargo Compartment Insulation
B. Access
(1) Location Zones 121 Forward Cargo Container Compartment Fwd Half, Left 122 Forward Cargo Container Compartment Fwd Half, Right 123 Forward Cargo Container Compartment Aft Half, Left 124 Forward Cargo Container Compartment Aft Half, Right 141 Aft Cargo Container Compartment, Left 142 Aft Cargo Container Compartment, Right
C. Procedure
S 016-002
(1)
Remove the sidewall linings to get access to the insulation blankets if it is necessary (Ref 25-52-01/401).
S 026-008
(2)
Replace the insulation blankets which are moist with liquid (Ref 25-52-04/401).
S 356-006
(3)
Repair the damaged insulation blankets if it is necessary (Ref 25-00-00/801).
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A 747-400 MAINTENANCE MANUAL
(4) S 216-007Make sure you install the insulation blankets correctly on the airplane structure (Ref 25-52-04/401).
(5) S 416-005Install the sidewall linings if it is necessary (Ref 25-52-01/401).
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747-400 MAINTENANCE MANUAL
CONTAINERIZED CARGO HANDLING SYSTEM - DESCRIPTION AND OPERATION
_______________________________________________________________
1. General
_______
A. The containerized cargo compartments in the lower lobe are equipped with a powered cargo handling system for loading and unloading containerized and palletized cargo. The system provides for movement and control of cargo in both lateral (in and out of airplane) and longitudinal (fore and aft) directions. The system consists of ballmat assemblies, roller channel assemblies, power drive units with associated wiring harnesses and control system components.
CAUTION: LANDING GEAR DOORS SHOULD BE IN CLOSED POSITION DURING LOADING
_______ OPERATIONS TO AVOID POSSIBLE DAMAGE TO DOORS (AMM 32-00-30/201, LANDING GEAR DOOR LOCKS, AMM 32-14-00/501, BODY GEAR DOORS).
WARNING: CARGO COMPARTMENT HEAT TUBES LOCATED BELOW THE FLOOR ARE HOT (325
_______ F/163 C) AND CAN CAUSE BURN INJURIES OR DAMAGE TO CARGO. USE CARE WHEN LOADING CAGRO TO AVOID CONTACT WITH HEAT TUBES.
B. Cargo movement and control is accomplished through the interaction of the following subsystems which constitutes the cargo handling system (Fig. 1, 2).
(1)
The cargo conveyor system consists of ball transfer panels and roller channel assemblies which carry the cargo load and provide a low-friction surface for easy cargo movement within the compartment.
(2)
The power drive system provides the motive force for cargo movement. The force is submitted by power drive units with rubber covered drive rollers which protrude above the cargo supporting structure to contact the underside of the cargo containers and pallets.
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