Best 9K Series User manual

SERVICE MANUAL

CREDITS/COPYRIGHT
Copyright© 2000-2018 BEST Access Solutions, Inc. All rights reserved. Printed in
the United States of America.
Information in this document is subject to change without notice and does not
represent a commitment on the part of BEST Access Solutions, Inc. The software
described in this document is furnished under a license agreement or nondisclosure
agreement.
This publication is intended to be an accurate description and set of instructions
pertaining to its subject matter. However, as with any publication of this complexity,
errors or omissions are possible. Please call your BEST distributor or BEST Access
Solutions, Inc. [phone],if you see any errors or have any questions. No part of
this manual and/or databases may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording, or information
storage and retrieval systems, for any purpose, without the express written permission
of BEST Access Solutions, Inc.
This document is distributed as is, without warranty of any kind, either express or
implied, respecting the contents of this book, including but not limited to implied
warranties for the publication’s quality, performance, merchantability, or fitness for
any particular purpose. Neither BEST Access Solutions, Inc., nor its dealers or
distributors shall be liable to the user or any other person or entity with respect to
any liability, loss, or damage caused or alleged to be caused directly or indirectly by
this publication.
The Life Safety Code is a registered trademark of the National Fire Protection
Association.
Written and designed by BEST Access Solutions, Inc. and Avalon Group, Inc.,
Indianapolis, Indiana.
T56082 Rev D 1798144 ER-7991-6 March 2018

9K Series Service Manual iii
CONTENTS
FIGURES VII
GETTING STARTED 1–1
Introduction 1–1
Certifications and standards 1–2
9K Series Locks 1–2
Electrified Locks 1–2
Accessories 1–2
Documentation package 1–3
Technical support 1–4
Support services 1–4
Telephone technical support 1–4
Training seminars 1–4
FUNCTIONS AND PARTS LISTS 2–1
Function descriptions 2–2
Single-keyed functions 2–3
Double-keyed functions 2–5
Non-keyed functions 2–7
Special functions 2–8
Electrified cylindrical functions 2–11
Functions by ANSI designation 2–11
Standard functions 2–12
AB function chassis—entrance lock (ANSI F109) 2–12
C function chassis—corridor lock (ANSI F88) 2–13
D function chassis—storeroom lock (ANSI F86) 2–14
E function chassis—service station lock (ANSI F92) 2–15
G function chassis—storeroom lock (ANSI F91) 2–16

Contents
iv 9K Series Service Manual
H function chassis—hotel guest room lock with indicator
(ANSI F93) 2–17
HJ function chassis—hotel guest room lock without indicator 2–17
L function chassis—privacy lock (ANSI F76) 2–18
N function chassis—passage lock (ANSI F75) 2–19
NX function chassis—exit lock (ANSI F89) 2–20
P function chassis—patio lock (ANSI F77) 2–21
R function chassis—classroom lock (ANSI F84) 2–22
S function chassis—communicating lock (ANSI F80) 2–23
T function chassis—dormitory lock (ANSI F90) 2–24
W function chassis—utility or institutional lock (ANSI F87) 2–25
Y function chassis—exit lock 2–26
Non-standard functions 2–27
A function chassis—entrance lock (ANSI F81) 2–27
B function chassis—office lock (ANSI F82) 2–28
DR function chassis—special lock 2–29
DZ function chassis—closet or storeroom lock 2–30
EA function chassis—entrance or office lock 2–31
IN function chassis—intruder lock 2–32
LL function chassis—hospital privacy lock 2–33
M function chassis—communicating lock (ANSI F78) 2–34
Q function chassis—exit lock (ANSI F83) 2–35
RD function chassis—special lock 2–36
RZ function chassis—closet or storeroom lock 2–37
XD function chassis—special lock 2–38
XR function chassis—special lock 2–39
YD function chassis—exit lock 2–40
YR function chassis—special lock 2–41
Z function chassis—closet lock 2–42
Electrified functions 2–43
DEL function chassis—electrically locked fail safe 2–43
DEU function chassis—electrically unlocked fail safe 2–45
Function conversion 2–47
Trim parts 2–50
Standard strikes and strike boxes 2–50
Non-standard strikes 2–50
Lead-lined parts 2–51
Roses, rose liners, and rose spacers 2–52
Standard levers and components 2–54
Dummy trim 2–57
Latches 2–58
Installation tools 2–59

Contents
9K Series Service Manual v
SERVICE AND MAINTENANCE 3–1
Maintenance tools 3–2
Replacing Parts 3–3
Replacing the lever 3–3
Replacing the inside rose and rose liner 3–4
Replacing the outside rose and liner assembly 3–6
Replacing the RQE rose liner for electrified locks 3–7
Replacing the button assembly 3–8
Replacing the lever keeper spring 3–10
Replacing the lever return spring 3–11
Replacing the key release cam assembly 3–15
Replacing the spring drive plate 3–16
Replacing the sleeve assembly 3–17
Replacing the solenoid for electified locks 3–19
Adding the RQE switch to electrified locks 3–19
Reversing the solenoid when changing the function 3–20
Lubricating the cores 3–20
Aligning the chassis and trim 3–21
Cam positioning instructions 3–22
Positioning the cam for C function locks 3–22
Positioning the cam for G and IN function locks 3–23
Emergency key instructions for H and HJ function locks 3–24
Troubleshooting 3–25
INSTALLATION INSTRUCTIONS A–1
INDEX B–1

Contents
vi 9K Series Service Manual

9K Series Service Manual vii
FIGURES
FUNCTIONS AND PARTS LISTS
Understanding function drawings 2–2
Standard strikes and strike boxes 2–50
Understanding strike lip measurement 2–50
Cross-section of 9K locks showing lead-lined parts 2–51
Standard lever components 2–55
Lever components with interchangeable cores 2–55
Lever components for use with non-interchangeable cores 2–56
Dummy trim parts 2–57
Latches 2–58
Installation tools 2–59
SERVICE AND MAINTENANCE
Maintenance tools 3–2
Removing the keyed lever 3–3
Removing the plain lever or button lever 3–3
Replacing the lever (keyed lever shown) 3–4
Removing the inside rose with the spanner wrench 3–4
Removing the two through-bolts 3–5
Replacing the inside rose and rose liner 3–5
Removing the outside rose and liner assembly 3–6
Replacing the outside rose and liner assembly 3–7
Removing the button assembly 3–8
Inserting the button assembly into the sleeve 3–9
Bending the button assembly tab 3–9

Figures
viii 9K Series Service Manual
Removing the lever keeper spring 3–10
Positioning the lever keeper spring 3–10
Lever keeper spring in position 3–11
Separating the hub and sleeve assembly from the chassis 3–12
Removing the thrust plate 3–12
Removing the lever return spring 3–12
Positioning the lever return spring 3–13
Inserting the lever return spring 3–13
Installing the thrust plate 3–14
Positioning the retractor assembly 3–14
Installing the retractor assembly 3–15
Removing the key release cam assembly 3–15
Installing the key release cam assembly 3–16
Removing the spring drive plate 3–16
Positioning the sleeve 3–17
Installing the spring drive plate 3–17
Removing the sleeve assembly from the hub 3–18
Replacing the sleeve assembly 3–18
Positioning the sleeve 3–19
Engaging the retractor in the latch 3–21
Correct position of the C function inside locking cam 3–22
Correct position of the G and IN function locking cam 3–23
Intermediate position of the G and IN function locking cam 3–23
Inserting the emergency key 3–24

9K Series Service Manual 1–1
1GETTING STARTED
INTRODUCTION
The 9K Series Service Manual contains essential
information to help you maintain your 9K Series
Lock. This manual addresses standard and electrified
9K Series Locks. Throughout this manual, the term
electrified is used to refer to 93KW–95KW DEL, DEU
function locks.

Getting Started
1–2 9K Series Service Manual
CERTIFICATIONS AND STANDARDS
9K Series Locks ■The locks comply with ANSI A156.2, Series 4000 Grade 1 standards.
■The locks are listed by Underwriter’s Laboratories for use on 3 Hr., A
label single swinging doors (4´x 10´), or pairs of doors 8´wide and
10´high.
■When used with the 3/4″throw latch, the locks comply with
Miami-Dade County standards with a design pressure rating of ±90
PSF for single doors and ±50 PSF for double door openings.
■The AB, C, D, EA, G, IN, NX, Q, R, and YD function locks comply
with ANSI A250.13 Windstorm standards with a design load rating of
1750 pounds.
■The chassis conforms to ANSI A115.2.
■The 8KS3 strike fits the standard door frame cutout as specified in
ANSI A115.2.
■The #14 and #15 lever handles conform to California Administrative
Code Title 19 and Title 24.
■The #14, #15, and #16 lever handles conform to the Illinois
Accessibility Standard.
Electrified
Locks
■The 9KW Locks are UL listed for GYQS electrically controlled single
point locks or latches.
■The 9KW Locks are approved by the California State Fire Marshal
(CSFM) pursuant to section 13144.1 of the California Health and
Safety Code.
■The 9KW Locks are approved by the city of New York Board of
Standards and Appeals under calendar number 730-89-SA. See CSFM
listing number 4136-1175:103.
Accessories ■The 8W599 transformer is UL listed.
■The 8WCON AC to DC converter full wave bridge rectifier is
UL recognized.

Getting Started
9K Series Service Manual 1–3
DOCUMENTATION PACKAGE
The following documentation is available to help you with the
installation, start-up, and maintenance of your 9K Series Lock.
The installation and assembly instructions also can be ordered
separately:
The templates required for lock installations also can be ordered
separately:
Document Title Doc. No.
Installation Instructions for 9K Cylindrical Locksa
a. These installation instructions are included in this manual. See
Installation Instructions on page A–1.
T56075
Single and Double Dummy Trim Assembly
Instructions for 9K1DT/2DT
T56076
Wiring Instructions for 8K and 9K Series
Electrified Cylindrical Locks with RQEa
T56090
Door Wiring Instructions for Electrically-Operated
Locks
T61926
Document Title Doc. No.
K08 Template for Door and Frame Preparation
for 63, 73, 83, 93K Locks
T56052
K09 Template for Door and Frame Preparation
for 63, 73, 83, 93K Locks
T56053
K10 Template for Door and Frame Preparation
for 64, 84, 94K Locks
T56054
K11 Template for Door and Frame Preparation
for 64, 84, 94K
T56055
K12 Template for Door Frame Preparation
for 65, 85, 95K
T56056
K13 Template for Door Frame Preparation
for 65, 85, 95K
T56057
K18 Template for 8K/9K Dummy Trim T56059
K21 Template for Strike Specification for
Cylindrical Locks
T56060
W14 Template; Installation Specifications for
83KW/93KW–85KW/95KW IDH Max Cylindrical
Locks
T60777
W16 Template; Installation Template for
83KW/93KW–85KW/95KW IDH Max Cylindrical
Locks
T60773

Getting Started
1–4 9K Series Service Manual
TECHNICAL SUPPORT
Support
services
When you have a question about the 9K Series Lock, your first resource
for help is the 9K Series Service Manual. If you cannot find a
satisfactory answer, contact your local BEST Representative.
Telephone
technical
support
A factory-trained Certified Product Specialist (CPS) is available in your
area whenever you need help. Before you call, however, please make
sure you are where the 9K Series Lock is, and that you are prepared to
give the following information:
■what happened and what you were doing when the question arose
■what you have done so far to answer the question.
Training
seminars
BEST Access Solutions, Inc. Representatives provide telephone
technical support for all 9K Series products. You may locate the
representative nearest you by calling [phone] Monday through
Friday, between 7:00 a.m. and 4:00 p.m. eastern standard time; or visit
the web page, www.BestAccess.com.
BEST holds training sessions for its customers. The seminars are
specifically designed for BEST end-users who have a registered BEST
masterkeyed system and registered BEST security equipment. If you are
interested, you may contact your local BEST representative for details.

9K Series Service Manual 2–1
2FUNCTIONS AND PARTS LISTS
The following pages contain function descriptions
for all 9K Series Locks. This chapter also includes
exploded diagrams that show all field serviceable
mechanical parts, diagrams of trim and other
miscellaneous parts, and function conversion
information.

Functions and Parts Lists
2–2 9K Series Service Manual
FUNCTION DESCRIPTIONS
This section includes function descriptions grouped by the following
function types:
■single-keyed (page 2–3)
■double-keyed (page 2–5)
■non-keyed (page 2–7)
■special (page 2–8)
■electrified (page 2–11).
For a list of the BEST designation for each ANSI-defined function, see
page 2–11.
Note: If the function is ANSI defined, the ANSI designation appears by
the function name.
Figure 2.1 Understanding function drawings
OutsideInside
Latch
Shading indicates
that the lever is fixed.
View looking down
at the top of the door

Functions and Parts Lists
9K Series Service Manual 2–3
Single-keyed
functions
The following lists describe how the latchbolt, outside lever, and inside
lever operate for each single-keyed 9K function.
AB–Entrance (ANSI F109) D–Storeroom (ANSI F86)
Latchbolt operated by:
■inside lever
■outside key
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button when pushed in
■inside button when pushed in
and rotated clockwise
Outside lever unlocked by:
■inside lever when the inside
button is pushed in but not
rotated
■outside key when the inside
button is pushed in but not
rotated
■closing the door when the
inside button is pushed in but
not rotated
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside key
Outside lever is always fixed
Inside lever is always
unlocked
E–Service station (ANSI F92) H and HJ–Hotel guest room (ANSI F93 for H only)
Latchbolt operated by:
■inside lever
■outside key
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside slotted button
■inside slotted button when
pushed in and rotated
clockwise
Outside lever unlocked by:
■inside lever
■inside slotted button when
rotated counterclockwise
■outside key
■closing the door when the
inside button is pushed in but
not rotated
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside key when the inside
button is in the unlocked
position
■special emergency key after
the core is removed with the
control key
Outside lever is always fixed
Key block feature released
by:
■inside lever
■closing the door
Inside lever is always
unlocked
Note: For the H function, pushing the inside button
projects an “Occupied” indicator in the outside lever
and blocks all operating keys. For the HJ function,
pushing the inside button blocks all operating keys.

Functions and Parts Lists
2–4 9K Series Service Manual
R–Classroom (ANSI F84) T–Dormitory (ANSI F90)
Latchbolt operated by:
■inside lever
■outside key
■outside lever when not locked
Outside lever locked by:
■outside key
Outside lever unlocked by:
■outside key
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside lever when not locked
Outside lever locked by:
■inside button
■outside key
Outside lever unlocked by:
■inside lever when the inside
button is pushed in
■outside key
■closing the door when the
inside button is pushed in
Inside lever is always
unlocked

Functions and Parts Lists
9K Series Service Manual 2–5
Double-keyed
functions
The following lists describe how the latchbolt, outside lever, and inside
lever operate for each double-keyed 9K function.
Warning:
Locks that secure both sides of the door are controlled by
building codes and the Life Safety Code®. In an emergency exit
situation, failure to quickly unlock the door could be hazardous,
or even fatal.
C–Corridor (ANSI F88) G–Storeroom (ANSI F91)
Latchbolt operated by:
■inside lever
■outside key
■outside lever when not locked
Outside lever locked by:
■inside key
Outside lever unlocked by:
■inside key
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever when not locked
■outside lever when not locked
Outside lever locked by:
■inside key
■outside key
Outside lever unlocked by:
■inside key
■outside key
Inside lever locked by:
■inside key
■outside key
Inside lever unlocked by:
■inside key
■outside key
Note: Turning the key in either the inside or outside
lever locks or unlocks both sides.
IN–Intruder S–Communicating (ANSI F80)
Latchbolt operated by:
■inside lever
■outside lever when not locked
Outside lever locked by:
■inside key
■outside key
Outside lever unlocked by:
■inside key
■outside key
Inside lever is always
unlocked
Latchbolt operated by:
■inside key
■inside lever when not locked
■outside key
■outside lever when not locked
Outside lever locked by:
■outside key
Outside lever unlocked by:
■outside key
Inside lever locked by:
■inside key
Inside lever unlocked by:
■inside key
Note: Turning the key in either lever locks or
unlocks that lever independently.

Functions and Parts Lists
2–6 9K Series Service Manual
W–Institutional (ANSI F87)
Latchbolt operated by:
■inside key
■outside key
Outside lever is always fixed
Inside lever is always fixed

Functions and Parts Lists
9K Series Service Manual 2–7
Non-keyed
functions
The following lists describe how the latchbolt, outside lever, and inside
lever operate for each non-keyed 9K function.
L–Privacy (ANSI F76) N–Passage (ANSI F75)
Latchbolt operated by:
■inside lever
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button
Outside lever unlocked by:
■inside lever
■outside slotted button when
pushed in and rotated
counterclockwise
■closing the door
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside lever
Outside lever is always
unlocked
Inside lever is always
unlocked
NX–Exit (ANSI F89) P–Patio (ANSI F77)
Latchbolt operated by:
■inside lever
Outside lever is always fixed
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button
Outside lever unlocked by:
■inside lever
■closing the door
Inside lever is always
unlocked
Y–Exit 1DT–Single dummy trim
Latchbolt operated by:
■inside lever
Inside lever is always
unlocked
This lock is a single, surface
mounted lever for an inactive
door or a non-latching door.
2DT–Double dummy trim
This lock is a through-bolt
mounted pair of matching levers
for an inactive door or a
non-latching door.

Functions and Parts Lists
2–8 9K Series Service Manual
Special
functions
The following lists describe how the latchbolt, outside lever, and inside
lever operate for each special 9K function.
Warning:
Locks that secure both sides of the door are controlled by
building codes and the Life Safety Code®. In an emergency exit
situation, failure to quickly unlock the door could be hazardous,
or even fatal.
A–Dormitory or storeroom lock (ANSI F81) B–Office (ANSI F82)
Latchbolt operated by:
■inside lever
■outside key
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button
Outside lever unlocked by:
■inside button
Inside lever is always
unlocked
Latchbolt operated by:
■inside lever
■outside key
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button
Outside lever unlocked by:
■inside lever
■outside key
Inside lever is always
unlocked
Note: Inside button must be rotated
counterclockwise to unlock the outside lever. Note: Inside button is released by turning the key in
the outside lever or rotating the inside lever. Closing
the door does not release the inside button.
DZ–Closet or storeroom EA–Entrance or Office
Latchbolt operated by:
■inside turn knob
■outside key
Outside lever is always fixed
Inside turn knob is always
unlocked
Latchbolt operated by:
■inside lever
■outside key
■outside lever when the inside
button is in the unlocked
position
Outside lever locked by:
■inside button
■inside button when pushed in
and rotated clockwise
Outside lever unlocked by:
■inside lever
■inside button when rotated
counterclockwise
■outside key
Inside lever is always
unlocked
Note: Turning the slotted button keeps the outside
lever locked until the button is turned back.