Allegion Schlage D Series, Manual

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Key control
Schlage • Everest full size cylinder service manual • 5
Key control
Since the late 1960's, patents on keys have been used
primarily to prevent unauthorized key duplication. This is the
case with Schlage's newest patented Everest 29 families.
Both Everest and Everest 29 offer open keyways as well as
families with restricted key control.
Open keyways
Everest C Family Keyways are protected by U.S. utility patents
5,715,717 and 5,809,816 and Everest 29 S Family Keyways are
protected by U.S. utility patents 7,665,337 against
unauthorized manufacture and distribution. However, the C
Family and S Family keyways are readily available to the end
user for fast and easy key duplication without any formalities.
All C and S keyways are considered "open" keyways which
means they can be stocked and sold by all locksmiths and
contract hardware dealers. The purpose of the Everest C and
Everest 29 S keyways is to guarantee the end-user genuine
Schlage quality replacement keys and to provide commercial
locksmiths and contract hardware dealers a group of
keyways not available in home centers or retail key stands.
Everest 29 S Family keyways are the default keyways for all
new Schlage Commercial products and Schlage master key
systems.
Restricted keyways
For end-users who want restricted keys with patent
protection, Schlage offers its Everest D and Everest 29 T
Family keyways. Everest D and Everest 29 T Family keyways
are protected by the same patents and require a letter of
authorization from the end user. The difference between the
C/S and D/T Families is just the keyway. Despite the fact that
D and T Family keyways are restricted keyways they are still
serviced in the same manner as the C and S Family keyways.
D and T Family keyways can be reliably cut with the 40-099
key bitting punch. Due to the design of the key blade, a
standard punch cannot be used.
The keyway for each restricted D Family job is selected by
Schlage and registered to the end user. Everest restricted key
blanks, cut keys, cylinders and plugs are drop shipped directly
to the end user (or a location specifically authorized by the
end user). This creates positive key control by preventing
dealers and distributors from having access to keys and cores
without the end user’s permission.
Primus
®
and Primus XP
®
integration
Primus and Primus XP cylinders are also available with
Everest or Everest 29 keyways. The Everest Primus XP and
Everest 29 Primus XP keys are downward compatible to
operate the conventional Everest cylinders and Everest 29
cylinders covered in this manual. See the Schlage High
Security Cylinders & Key Control Service Manual (SC-
GN-1001) for details on Everest 29 Primus XP cylinders. A
portion of the undercut groove is milled away on all
conventional Everest and Everest 29 keys to prevent them
from being altered to operate an Everest Primus XP or
Everest 29 Primus XP cylinder.
Lip to lift
check pin
Lip removed to prevent
Primus operation