| 1. | This was found to be caused by corrosion in the propeller locking rings.
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| 2. | The original generation of FD lenses featured a silver colored locking ring at the base.
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| 3. | Three hoops and two locking rings were also included.
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| 4. | Both of these mounts are held in place with locating pins and friction locking rings.
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| 5. | On smaller autoclaves, rotation of the locking ring is sometimes accomplished by manually operated geared devices.
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| 6. | To compensate for the problem of gun drooping, four hoop-locking rings were added to the guns.
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| 7. | The escaping air is diffused past the locking ring, preventing injury from high speed jets of air.
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| 8. | The Mod 8s that used Mod 0 guns also added a new chase hoop and locking ring.
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| 9. | Only the locking ring turns to lock the lens to the camera body; the lens body remains stationary.
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| 10. | At its chamber end, the barrel becomes screwed into the receiver and presses into the upper receiver's locking ring.
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