Door Mechanism Figure 004 (SHEET 1)
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Door Mechanism Figure 004 (SHEET 2)
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Door Mechanism Figure 004 (SHEET 3)
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R Locking Mechanism with Locking Handle
R Figure 004A
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Door Mechanism
Figure 004B (SHEET 1)
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Door Mechanism
Figure 004B (SHEET 2)
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Door Mechanism
Figure 004B (SHEET 3)
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R Interlock and Drift Pin Mechanism
R Figure 005
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Interlock and Drift Pin Mechanism
Figure 005A
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Vent Door and Switch Mechanism
Figure 006
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R Vent Door and Switch Mechanism
R Figure 006A
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Vent Door and Switch Mechanism
Figure 006B
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In this position the target at the door handle operates the proximity sensor 28WV at beam 4.
(2) Latching Mechanism with Interlock Mechanism
The latching mechanism which is installed in the lower part of the cargo door includes the subsequent components: - the latching shaft which has six shaft levers, the control lever, the interlock cam and the link lever, - the six latching units which have a latching hook, a bellcrank, a bellcrank lever and a connection rod, - the interlock mechanism which includes the interlock lever with the
stop bolt, the connection rod and the spring unit.
The Maltese-cross latch transmits the movement of the door handle
(from 65 degree to 128 degree) via the connection rod to the latching shaft. The shaft levers then operate the latching units which move their latching hooks into the latched or released position.
The interlock mechanism prevents the operation of the door handle when the cargo door is still opened. The spring unit moves the interlock lever to the blocked position so that its stop bolt touches the interlock cam.
R **ON A/C 051-052,
R R R R R R (1) Locking Handle with Flap Mechanism The locking handle is installed between FR28 and FR27. To lock the cargo door correctly, the locking handle must be: - in the horizontal position (LOCKED position), - in the recess of the handle flap.
R R R R R R R R Parts of the locking handle are the lever mechanism, the handle bearing and the handle spring. The lever mechanism operates the safety mechanism when the locking handle is pulled from the recess. The special cam (part of the lever mechanism) prevents the inboard movement of the locking handle when it is not in the horizontal position. The limit lever of the lever mechanism stops the travel of the locking lever.
R R R The handle bearing operates the locking mechanism when the locking handle is turned to the UNLOCKED position.
R R The handle spring keeps the lever mechanism in the overcenter position when the locking handle is in the recess. In this position,
R the target on the end of the locking handle operates the proximity
R sensor 28WV.
R
R The flap mechanism includes the spring-loaded handle flap and the
R linkage with the related hook. The inboard movement of the handle
R flap operates the linkage to disengage the hook from the locking
R handle. The hook safeties the locking handle when it is pushed in the
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