777 AMM 飞机维护手册 Doors 舱门(35)

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When you pull outboard on the external handle, it connects to the internal handle. The internal handle connects to the push/ pull rods.
When you turn either handle, the push/pull rods compress the springs and pull the probes out of the latches. When you release the handle, the springs push the latch probes outward.
A spring on the external handle pulls it inboard to the fair position when the door is latched.
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777 AIRCRAFT MAINTENANCE MANUAL

BULK CARGO DOOR SYSTEM -LATCH MECHANISM

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BULK CARGO DOOR SYSTEM -OPERATION

Operation -Door Open
You can use either the internal or the external handle to unlatch door. To use the external handle, pull the handle outboard until you can turn it. To use the internal handle, you only need to turn it.
When the door is unlatched, the counterbalance supplies the force to open the door. The snubber controls the rate at which the door opens. The door rotates inward and upward on the hinge arms.
When the door is fully open, put the hold-open strap around the lower, aft door stop.
Operation -Door Close
To close the door, release the hold open strap. Pull or push the door down. Rotate the handle to the unlatch position. Close the door. Turn the handle to the latch position. The door is latched and locked.
When the door is full open, use the hold open strap. It gives protection in case the counterbalance and snubber fail.
If you use the external handle, make sure the handle goes inboard to the fair position when you close the door.
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777 AIRCRAFT MAINTENANCE MANUAL

BULK CARGO DOOR SYSTEM -OPERATION

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777 AIRCRAFT MAINTENANCE MANUAL

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BOEING PROPRIETARY -Copyright # -Unpublished Work -See title page for details.

EQUIPMENT COMPARTMENT AND EQUIPMENT SERVICE DOORS -LEFT SIDE OF AIRPLANE

Purpose
Equipment compartment doors give access to equipment on the airplane.
Equipment service doors give access to service airplane systems.
Location
These equipment compartment and equipment service doors are on the left side of the airplane:
*
Left environmental control system (ECS) low pressure connection access door

*
Left environmental control system (ECS) high pressure connection access door

*
Left environmental control system (ECS) access door

*
Refueling station door

*
Air driven pump (ADP) exhaust door

*
Service access door

*
Waste tank service access door

*
Air-driven pump (ADP) pressure relief door

*
Air-driven pump (ADP) filter access door.

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EQUIPMENT COMPARTMENT AND EQUIPMENT SERVICE DOORS -LEFT SIDE OF AIRPLANE

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EQUIPMENT COMPARTMENT AND EQUIPMENT SERVICE DOORS -RIGHT SIDE AND BOTTOM OF AIRPLANE

Location
These equipment compartment doors and equipment service doors are on the right side and bottom of the airplane:
*
Fueling control door

*
Right environmental control system (ECS) access door

*
Right environmental control system (ECS) low pressure connection access door
　
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