Latching and Locking Mechanism
Figure 004C (SHEET 3)
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INTENTIONALLY BLANK
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R Latching and Locking Mechanism
R Figure 004D (SHEET 1)
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R Latching and Locking Mechanism
R Figure 004D (SHEET 2)
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R Latching and Locking Mechanism
R Figure 004D (SHEET 3)
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Interlock and Drift Pin Mechanism
Figure 005
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Drift Pin Mechanism Figure 005A
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R Drift Pin Mechanism
R Figure 005B
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Vent Door and Switch Mechanism
Figure 006
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Vent Door and Switch Mechanism
Figure 006A
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Vent Door Mechanism Figure 006B
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Vent Door and Switch Mechanism
Figure 006C
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R Vent Door Mechanism
R Figure 006D
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R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
The cargo door mechanism includes the subsequent components:
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the door handle mechanism with the handle flap,
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the latching mechanism with the interlock mechanism,
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the locking mechanism with the vent door mechanism,
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the drift pin mechanism,
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the switch mechanism.
**ON A/C 051-052,
F. Cargo Door Mechanism
(Ref. Fig. 004A, 005, 006A)
The cargo door mechanism includes the subsequent components:
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the locking handle with flap mechanism,
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the locking mechanism with interlock mechanism,
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the safety mechanism with vent door and related mechanism,
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the drift pin mechanism,
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the switch mechanism.
R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
(1) Door Handle Mechanism
The door handle mechanism is installed between FR55 and FR56 to latch/unlatch and lock/unlock the cargo door. Parts of the door handle mechanism are, the door handle, the Maltese-cross assembly, the linkage mechanism and the handle spring. The door handle mechanism operates the locking mechanism when the the door handle is pulled up to the 65 degree position. When the door handle is lifted to the 128 degree position, the door handle mechanism operates the latching mechanism. The Maltese-cross assembly transmit the different movement sequence steps of the door handle as follows:
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the Maltese-cross lock operates the locking shaft via the linkage mechanism,
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the Maltese-cross latch operates the latching shaft via the connection rod.
The gas spring assembly makes sure that the linkage mechanism stays in a overcenter position when the door handle is in the 65 degree position. The handle spring keeps the door handle in its fully lifted position and vice versa when the door handle is moved into its recess.
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