BEST 9K Series Heavy Duty Cylindrical Lock Instructions
- June 13, 2024
- best
Table of Contents
BEST 9K Series Heavy Duty Cylindrical Lock
Product Information
The 9K Series is a cylindrical lock designed for quick and easy installation. It features a low profile rose with a lever sleeve] and lock hub-cast construction. The lever return springs are]torsion type and concealed in the hub/door, ensuring safe, secure,and smooth operation. The lever sleeve is long and robust, providing increased bearing surface. The latch mounting tabs aremade from a high strength alloy for strong and positiveengagement.
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Lever Return Springs
Torsion Type, Concealed In Hub/Door (Safe/ Secure/Smooth Operation) -
Lever Rose
Low Profile Design -
Lever Sleeve
Long Robust Lever Sleeve (Increased Bearing Surface) -
Assembly Installation
Easy Installation (Pre Assembled Design/ Intuitive) -
Latch Mounting Tabs
High Strength Alloy Tabs (Strong/Positive Engagement)
Frequently Asked Questions
What is the 9K and when was it introduced?
Initially designed from the BEST 8K knob-set platform, the 9K paved the way
for an Americans with Disabilities Act – ADA compliant cylindrical lock
portfolio.
Utilizing extensive customer feedback, the lock assembly was redesigned and
subsequently launched as the 9K Varsity Series in 1994. Eventually we dropped
the Varsity name from the 9K nomenclature. However, the new redesigned 9K
Series incorporates the following industry leading features
- Pre-assembled heavy duty chassis – Quick & easy installation
- Hardened steel thru-bolt studs – Maximum lever torque resistance
- Low profile rose design – ADA friendly lever operation
- Cast construction lock hub – solid lock foundation
Q: What are thru-bolt studs?
A: Studs that pass through the door outside the 2 1/8″ diameter hole that
provide added strength to the lock. Please refer to the image on page 1.
Q: What is a chassis?
A: The primary housing (body of the lock) that everything operates off of that
sits inside the 2 1/8″ diameter hole in the door. Please refer to the image on
page 1.
Q: What kind of chassis does the 9K have?
A: The 9K chassis has two solid cast hubs for added strength and a single
piece lever sleeve. This single piece lever sleeve is more durable and reduces
installation time.
Q: What is a sleeve (aka spindle)?
A: The sleeve/spindle is the supporting structure for the lever handles that
sits inside the hub. The 9K incorporates a longer sleeve for added functional
support. Please refer to the image on page 1.
Q: How long does it take to install the 9K?
A: Once the door is prepped, it is a three step process (Step 1: Install latch
Step 2: Install preassembled chassis & outside lever Step 3: Install inside
lever). That process takes an average of two minutes. Since we only have 3
parts and our packaging is designed with the installer in mind, installation
can be done quickly, efficiently, and accurately.
Q: What door thickness range can the 9K accommodate?
A: The 9K comes preset from the factory to fit 1 3/4″ thick doors. Using the
machined grooves in the thru-bolt studs as a guide, the lock assembly can be
field adjusted to accommodate doors up to 2 1/4″ thick.
Q: What enables the 9K to withstand high lever torque?
A: The outside lever sleeve and the tabs on the latch are made from a high
quality steel alloy that has been heat treated to strict specifications
enabling it to withstand excessive lever torque. These components provide an
integral part of strength to the 9K.
Q: What is different about the aesthetics of the 9K?
A: The 9K has a low profile, slim rose design that is preferred by our
customers. The 9K houses the springs in the chassis instead of the rose making
the springs more reliable and less susceptible to breakage. In addition, our
slimmer rose allows for more space to grasp the lever which is in line with
ADA requirements.
Q: Does the 9K make a lot of noise when in use?
A: Since our high quality springs are housed within the chassis as opposed to
within the rose, the 9K is a much quieter product.
Q: Is the 9K susceptible to lever droop?
A: The quality of the springs in addition to a recent retooling of the levers,
hubs, chassis, and sleeves has reduced common lever droop issues
to minimal, best in class levels. We have increased monitoring during
manufacturing to maintain top factory standards.
Q: Does the 9K come with a core?
A: The 9K comes less core (LC) standard from the factory.
Q: What is the standard core for the 9K?
A: The standard core is the BEST SFIC (Small Format Interchangeable Core).
Q: Do you have 9K levers to fit competitive core offerings?
A: Yes, we offer levers to fit the Schlage LFIC (Large Format Interchangeable
Core) as well as the following Non-IC (Non- Interchangeable Core): Medeco,
Yale, Sargent and Corbin Russwin.
Q: What is the difference between interchangeable cores (IC) and non-
interchangeable cores (Non-IC)?
A: Interchangeable cores can be installed and removed from the outside through
the use of a control key. Noninterchangeable cores must be installed and
removed by first taking the lever off. Interchangeable cores have a figure 8
design whereas non-interchangeable cores have a single hole design.
Q: Can you change from a Non-IC lock to an IC lock or vice versa?
A: No. The chassis’s are built completely different from one to the other. The
lever won’t stay on if you try to switch them. You must first understand if
the customer needs or wants an IC or a Non-IC system.
For questions about ordering and to be sure you get the right configuration for your needs, contact your BEST dormakaba sales representative. 6161 East 75th Street, Indianapolis, IN 46250 USA | 855-365-2407 | bestaccess.com
BEST is a trademark of dormakaba Holding© 2021 All rights reserved. BEST is a member of the dormakaba Group, one of the top three providers for access and security solutions, globally.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>