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Door preparation
Mark Cylindrical Lockset and Strike Locations
NOTE: Door must be fitted and hung properly before proceeding.
NOTE: Most doors are equipped with rubber bumpers to dampen the closure. The door must remain in the same state in
which it was prepped.
NOTE: The suggested distance from the finished floor surface to the Best 9K cylindrical lockset horizontal reference
centerline is 38", and may be varied to meet application requirements. However, in no case should this distance be greater
than 48" due to National Fire Protection Association code requirements.
Figure 2 is a reference for the two drill templates referenced in this instruction guide.
It is recommended that the installer scribe two horizontal centerlines 10" apart, on both the door and the strike
mounting surface. The line be the locator for both locksets, and associated strikes.
Figure 2: Reference Combined Template
Document Number 548.0418 Rev. AX — 02/2019
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