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the control lever moves the target to the proximity sensor 5MJ which sends a signal to the door control circuit (Ref. 52-35-00),
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the interlock cam moves up so that the released interlock mechanism is serviceable.
When the cargo door opens, the roller lever of the interlock mechanism moves away from the interlock fitting of the door sill. The spring unit extends and moves the interlock lever so that its stop bolt touches the interlock cam. This causes the interlock mechanism to block the operation of the door handle which is in the UNLATCHED position.
B. Locking Mode
When the cargo door closes, the roller lever of the interlock mechanism moves against the interlock fitting of the door sill. The roller lever then operates the connection rod which moves the interlock lever against the spring unit. If the cargo door is fully closed, the subsequent occurs:
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the stop bolt of the interlock lever does not block the lock cam of the locking shaft,
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the door handle is serviceable to lock the closed cargo door.
To engage the latching hooks on their fuselage fittings, pull the door handle down to the 65 degree position. During this movement the subsequent occurs:
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the Maltese-cross latch operates the connection rod which turns the latching shaft in the latched position,
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the shaft levers operate the bellcranks which move the bellcrank levers. The latching hooks engage the eccentric bolt of the fuselage fitting.
R 1EFF : 001-049, 053-099, 101-149, 151-199, 1 52-31-00Page 46 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
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the control lever turns the related target away from the proximity sensor 5MJ to stop the hydraulic operation (Ref. 52-35-00),
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the interlock cam comes to its unblocked position.
**ON A/C 051-052,
To disengage the locking hooks from their fuselage fittings, turn the locking handle down into its UNLOCKED position. During this movement, the subsequent occurs:
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the link rod operates the deflection unit which turns the locking shaft in the release direction. The locking shaft transmits this movement to the shaft levers, the control lever and the interlock cam,
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the shaft levers operate the spring units to release the overcenter position of the locking units . Then the bellcranks move the bellcrank levers and the locking hooks disengage from the eccentric bolts of the fuselage fittings,
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the control lever moves the target to the proximity sensor 5MJ which sends a signal to the door control circuit (Ref. 52-35-00),
-
the interlock cam moves up so that the released interlock mechanism can be serviceable.
When the cargo door opens, the roller lever of the interlock mechanism moves away from the interlock fitting of the door sill. The spring unit extends and moves the interlock lever so that its stop bolt touches the interlock cam. This causes the interlock mechanism to block the operation of the locking handle which is in the UNLOCKED position.
B. Locking Mode
When the cargo door closes, the roller lever of the interlock mechanism moves against the interlock fitting of the door sill. The roller lever then operates the connection rod which moves the interlock lever against the spring unit. If the cargo door is fully closed, the subsequent occurs:
-
the stop bolt of the interlock lever does not block the cam of the locking shaft,
-
the locking handle is serviceable to lock the cargo door.
To engage the locking hooks on their fuselage fittings, turn the locking handle up to the LOCKED position. During this movement the subsequent occurs:
-
the link rod operates the deflection unit which turns the locking shaft in the locked position,
1EFF : ALL 1 52-31-00Page 47 1 1 Aug 01/05R 1 1 1CES 1
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the shaft levers operate the spring units so that the bellcranks move the bellcrank levers. The locking hooks engage the eccentric bolt of the fuselage fitting. The spring units come in the overcenter position and secure the locking hooks in their positions,
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the control lever turns the related target away from the proximity sensor 5MJ to stop the hydraulic operation (Ref. 52-35-00),
-
the interlock cam comes to its unblocked position.
**ON A/C 001-049, 053-099, 101-105, 151-199, 201-220,
When the door handle is moved down and pushed inboard so that it is in line with the cargo door contour, the subsequent occurs:
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the door handle disengages from the Maltese-cross latch and engages with the Maltese-cross lock. This causes the control rod to operate and the latching shaft turns so that the lock cams move into the recess of the latching hooks.
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本文链接地址：A320飞机维护手册 AMM DOORS 舱门4(26)
