Sargent Degree Key System User Manual download pdf (Page 7)

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Construction Master Keying

(21- Option)

Degree

™

Key System Technical Manual

Reproduction in whole or in part without the express written permission of Sargent Manufacturing Company is prohibited.

SARGENT Degree cylinders when master keyed are offered with the

convenience of construction keying when specified with the 21- option.

This is not recommended with DG3 key systems or any system where strict

key control and management is enforced.

Construction keying simplifies the process when the building gets turned

over. With this feature, the 21- cylinder is master keyed with a special

construction feature in one of the chambers. The plug is prepped in two

places along both sides of the same chamber containing the construction

feature. This allows the construction master key to be used during the

construction phases.

It is highly recommended that all construction keys are collected and

accounted for once the project is complete to protect the integrity of the

key system. This is not recommended with DG3 key systems or any system

where strict key control & management is enforced.

New systems supplied with six construction master keys unless

otherwise specified. Orders to existing key systems that require

additional construction keys are to be specified and ordered separately.

Orders with 21- will have all change keys shipped separately from

hardware. Six construction master keys provided per system unless

otherwise specified.

The 21- is not available with hotel function cylinders or large format

interchangeable cores (6300 series). If construction keying is required

for LFIC, specify 64-DG- construction keyed cores.

Construction Master Keying (Lost/Wafer Design) for DG1-, DG2- & DG3-

Cutaway cylinder showing construction

master key being used, putting the wafer

below the shear line while key is turned.

Note the two empty “donut” holes

on either side of the chamber.

Change key inserted in cylinder

putting the wafer at the shear line.

As change key rotates,

construction wafer falls into

“donut” hole in the side of plug.

Only construction wafer will

fall due to hole through its center.

Change key rotated to

position for extraction.

Wafer

Construction key inserted after

wafer is trapped. Driver now

extends into plug chamber.

Construction key if used will not rotate.

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Sargent Degree Key System User Manual Page 7

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