4300 & 4300LN Series
Grade 2 Tubular Knob/Lever Locksets
Installation Instructions
Attention Installer: Lock & Cylinder installation is critical (section 7 & 8). If installation instructions are not followed, this may result
in damage to the lock and void the factory warranty.
IMPORTANT: The accuracy of the door preparation is critical for the proper functioning and security of this lock. Misalignment can
cause premature wear and tear and a lessening of security.
Any retrofit or other field modification to a fire rated opening can potentially impact the fire rating of the opening, and ASSA ABLOY
makes no representations or warranties concerning what such impact may be in any specific situation. When retrofitting any portion
of an existing fire rated opening, or specifying and installing a new fire-rated opening, please consult with a code specialist or local
code official (Authority Having Jurisdiction) to ensure compliance with all applicable codes and ratings.
1. Mark door.
Mark horizontal line
across edge of door
for centerline of lock
at desired height. Fold
template over edge
of door, centering on
horizontal line. Mark
centers of holes at
proper backset.
Note: Be sure to verify
backset before marking
& drilling door.
3. Install fire cup.
A. Insert cup with large open end
toward outside of door.
Note:
Failure to
use the fire
cup, and UL
marked latch
will invalidate
UL Listing.
WARNING
This product can expose you to lead which is known to the state of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65warnings.ca.gov.
WARNING
Attention Installer: Any retrofit or other field modification to a fire rated opening can potentially impact the fire rating of the opening,
and ASSA ABLOY makes no representations or warranties concerning what such impact may be in any specific situation. When
retrofitting any portion of an existing fire-rated opening, or specifying and installing a new fire-rated opening, please consult with a
code specialist or local code official (Authority Having Jurisdiction) to ensure compliance with all applicable codes and ratings.
1-800-438-1951 • www.assaabloy.com
Copyright © 1998, 2012, 2024, ASSA ABLOY Access and Egress Hardware Group, Inc. All rights reserved. Reproduction in whole
or in part without the express written permission of ASSA ABLOY Access and Egress Hardware Group, Inc. is prohibited.
2. Drill door.
A. Drill 2-1/8" (54mm) dia. hole thru the
door. Cut notches as shown on template.
Note: Dummy Trim requires 1/4" (6.4mm)
hole one center line only.
B. Drill 1" (25mm) dia. hole in edge of
door. Cut out for latch front 5/32" (4mm)
deep. 1-1/8" (29mm) wide or 1" (25mm)
wide x 2-1/4" (57mm) high. Check latch
unit for proper width front.
Note: To avoid splintering wood doors,
drill holes from both sides of the door.
4. Install latch unit.
Insert latch unit in door. (Be sure bevel
edge of bolt faces strike plate.) Attach
with two screws supplied.
Note: Failure to
use the fire cup,
and UL marked
latch will
invalidate
UL Listing.
A
B
5. Install strike.
80-9150-0050-010 01/24
Need help?
Do you have a question about the 4300LN Series and is the answer not in the manual?
Questions and answers