Service manual
BEST ACCESS SYSTEMS
Indianapolis, Indiana
T61918/Rev B 1777831 ER-7991-1
Overview
1 Position template
Note: On steel frame applications, align the horizontal centerline of the
latch with the horizontal centerline of the strike preparation.
1 For uncut doors
Fold the template along the perforation and carefully place it in posi-
tion on the high side of the door edge bevel. The suggested height
from floor to the centerline of the lock is 38“.
For doors with standard cylindrical preparation
Looking through the hole from the opposite side of the door, align
the template so that you see the template outline of the 2 1/8“ diam-
eter hole.
2 Tape the template onto the door.
3 Center punch the drill points.
2 Drill holes and install latch
Note 1: If the door is a fabricated hollow metal door, determine
whether it is properly reinforced to support the lock. If the door rein-
forcement is not adequate, consult the door manufacturer for informa-
tion on proper reinforcement.
Note 2: To locate the centerpoint of a hole on the opposite side of the
door, drill a pilot hole completely through the door.
Note 3: For through-holes, it is best to drill halfway from each side of
the door to prevent the door from splintering.
1 Drill a 3/8“ diameter hole through the door for the motor wires.
2 Bore the 2 1/8“ diameter hole (if not already bored).
3 Drill the 1“ diameter hole into the edge of the door to meet the cen-
ter of the 2 1/8“ diameter hole (if not already drilled).
4 Drill two 5/8“ diameter holes for the trim and one 7/8“ diameter hole
for the wire harness.
5 Mortise the edge of the door to accommodate the latch face.
6 Install the latch and check that the door swings freely.
7 Drill one 7/8“ diameter hole for the wires.
Note: The latch tube prongs should be centered and should project into
the 2 1/8“ diameter hole, as shown in Task 6.
3 Install boring jig and
drill two 5/16“ diameter holes
1 Press the boring jig (KD303) onto the door, engaging it with the latch
tube prongs. Make sure the front edge of the jig is parallel with the
door edge.
Figure 1
Figure 2
C
L
C
L
C
L
Figure 3
Figure 4
2 1/8“ diameter
1“ diameter
5/8“ diameter
3/8“ diameter
7
/
8
“
di
ameter
Latch face
5/16“ diameter
5/16“ diameter
Latch tube prongs
Installation Instructions for
V Series 83KV/93KV–85KV/95KV Locksets
1