Talk:Constant speed drive

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Have I missed something here? How does it work? 86.172.75.145 (talk) 07:27, 17 September 2012 (UTC)[reply]

I removed this paragraph as it refers only to a specific type of CSDU/IDG

Both the CSD and IDG have a disconnect switch in the cockpit.  The flight crew can disconnect a unit when it is overheating.  This disconnect mechanism actually withdraws the drive shaft from the accessory drive on the engine by use of a solenoid engaging a threaded drive shaft.   Once the unit is disconnected in flight, it cannot be reset.  A mechanic on the ground must pull a reset handle to reset the unit.  For this reason, the disconnect switch in the cockpit usually has a guarded switch cover to prevent an unintentional disconnect.