777 AMM 飞机维护手册 Doors 舱门(31)

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Unlatch and Open Operation
The green door latched light is on when the door is latched.
CAUTION:  DO NOT OPERATE THE DOOR ELECTRICALLY MORE THAN 2 FULL OPEN/CLOSE CYCLES WITHIN 5 MINUTES. DAMAGE TO THE LIFT MECHANISM CAN OCCUR.
At either the external or internal switch location, hold the arming switch in the arm position and the control switch in the open position. The vent door opens. The cargo door moves up out of its latched (plug) position. The green light goes off.
Continue to hold the switches in the arm and open position. The door moves to the full up position and stops. The amber door up light on the P44 comes on.
Close and Latch Operation
CAUTION:  MAKE SURE THE E/E EQUIPMENT DOORS ARE CLOSED ON THE SIDES OF THE DOOR CUTOUT BEFORE YOU CLOSE THE DOOR. THE CARGO DOOR CAN CAUSE DAMAGE TO OPEN E/E EQUIPMENT DOORS WHEN IT CLOSES.
At either location, hold the arming switch in the arm position and the control switch in the close position. The amber light on the P44 goes off when the door leaves the full up position.
Continue to hold the switches in the arm and close positions. The door closes and moves down into the latched (plug) position. The vent door closes. The green door latched light comes on.
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AFT SMALL CARGO DOOR SYSTEM -ELECTRICAL OPERATION

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777 AIRCRAFT MAINTENANCE MANUAL

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AFT SMALL CARGO DOOR SYSTEM -MANUAL OPERATION

General
Use a 3/8 inch drive tool for manual door operations.
WARNING: DO NOT OPERATE THE DOOR IN WINDS MORE THAN 40 KNOTS. DO NOT LET THE DOOR STAY OPEN IN WINDS MORE THAN 65 KNOTS. INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING: DO NOT OPEN THE DOOR WHEN THE AIRPLANE IS PRESSURIZED. INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
Controls
The socket for the manual unlatch/latch operation is on the upper, center part of the door.
The socket for the manual open/close operation is forward of the door, near the cargo handling control panel.
Unlatch Operation
CAUTION:  DO NOT LET THE POWER DRIVE UNIT OPERATE WITH TORQUE LIMITER SLIPPAGE FOR MORE THAN 5 SECONDS. DAMAGE TO THE POWER DRIVE UNIT CAN OCCUR. DO NOT OPERATE THE LIFT/LATCH MANUAL DRIVE AT A SPEED FASTER THAN 500 RPM OR A TORQUE OF MORE THAN 50 POUNDS-INCHES. DAMAGE TO THE LIFT/LATCH POWER DRIVE UNIT CAN OCCUR.
EFFECTIVITY
BEJ ALL

Put the drive tool into the latch manual drive socket. Turn it in the unlatch direction. The vent door opens. The door moves up out of the latch (plug) position.
NOTE: The door is in the lifted position when it is lifted vertically two inches (5 cm) from the latched position. It takes approximately 60 full turns of the manual drive to move the door from the latched position to the lifted position.
Open Operation
CAUTION:  DO NOT LET THE POWER DRIVE UNIT OPERATE WITH TORQUE LIMITER SLIPPAGE FOR MORE THAN 5 SECONDS. DAMAGE TO THE POWER DRIVE UNIT CAN OCCUR. DO NOT OPERATE THE HINGE MANUAL DRIVE AT A SPEED FASTER THAN 500 RPM OR A TORQUE OF MORE THAN 110 POUNDS-INCHES. DAMAGE TO THE HINGE POWER DRIVE UNIT CAN OCCUR.
Put the drive tool into the hinge manual drive socket. Turn it in the open direction until the door is in the full open position.
NOTE: It takes approximately 1150 full turns of the manual drive to move the door from the lifted position to the fully open position.
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AFT SMALL CARGO DOOR SYSTEM -MANUAL OPERATION

Close Operation
CAUTION:  MAKE SURE THE E/E EQUIPMENT DOORS ARE CLOSED ON THE SIDES OF THE DOOR CUTOUT BEFORE YOU CLOSE THE DOOR. THE CARGO DOOR CAN CAUSE DAMAGE TO OPEN E/E EQUIPMENT DOORS WHEN IT CLOSES.
　
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