Service manual
Installation Instructions for B.A.S.I.S. Cylindrical Locks
BEST ACCESS SYSTEMS
Indianapolis, Indiana
3
Installation Instructions for B.A.S.I.S. Cylindrical Locks
Preparing the door and door jamb Components checklist
2 Drill holes and mortise for latch face.
1 Drill the holes listed below:
■ upper and lower trim holes
—5/8″ diameter
— through door
■ harness hole
—3/4″ diameter
— through door
— location based on handing
■ motor wire hole
—7/16″ diameter
— through door
— before drilling chassis hole
■ chassis hole
—2 1/8″ diameter
— through door
— after drilling motor wire hole
■ latch hole
—1″ diameter
— meets chassis hole
Note 1: To locate the center of a hole on the opposite
side of the door, drill a pilot hole completely through the
door.
Note 2: For holes through the door, it is best to drill
halfway from each side of the door to prevent the door
from splintering.
2 Mortise the edge of the door to fit the latch face.
3 Drill the holes for the screws used to install the latch.
Figure 2 Drilling holes and mortising for the latch face
Latch hole
Upper trim hole
Harness
hole
Motor wire hole
Chassis hole
Lower trim hole
Latch face
mortise
Inside of door