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Sargent and Greenleaf 8500
|Manufacturer||Sargent & Greenleaf|
|Lock Type||Safe lock|
|Security Rating(s)||UL Group 1|
|# of Components||3|
|Component Type||Wheel pack|
The 8500 is a UL Group 1 combination lock made by Sargent and Greenleaf. It is mainly used on safes and vaults.
Principles of Operation
The 8500 uses a spring mechanism to prevent the fence from touching the wheel pack during dialing. There is a U-shaped spring connecting the lever to the case. Unless the gates are aligned properly, this spring will not allow the nose to rest on the drive cam.