
INSTALLATION INSTRUCTIONS
Universal Wall Mounting Bracket

PAC391 Installation Instructions
Tighten Fastener
Apretar elemento de fijación
Befestigungsteil festziehen
Apertar fixador
Serrare il fissaggio
Bevestiging vastdraaien
Serrez les fixations
Loosen Fastener
Aflojar elemento de fijación
Befestigungsteil lösen
Desapertar fixador
Allentare il fissaggio
Bevestiging losdraaien
Desserrez les fixations
Hex-Head Wrench
Llave de cabeza hexagonal
Sechskantschlüssel
Chave de cabeça sextavada
Chiave esagonale
Zeskantsleutel
Clé à tête hexagonale
Adjust
Ajustar
Einstellen
Ajustar
Regolare
Afstellen
Ajuster
Remove
Quitar
Entfernen
Remover
Rimuovere
Verwijderen
Retirez
Open-Ended Wrench
Llave de boca
Gabelschlüssel
Chave de bocas
Chiave a punte aperte
Steeksleutel
Clé à fourche
DISCLAIMER
Milestone AV Technologies, and its affiliated corporations and
subsidiaries (collectively, "Milestone"), intend to make this
manual accurate and complete. However, Milestone makes no
claim that the information contained herein covers all details,
conditions or variations, nor does it provide for every possible
contingency in connection with the installation or use of this
product. The information contained in this document is subject
to change without notice or obligation of any kind. Milestone
makes no representation of warranty, expressed or implied,
regarding the information contained herein. Milestone assumes
no responsibility for accuracy, completeness or sufficiency of
the information contained in this document.
Chief® is a registered trademark of Milestone AV T echnologies.
All rights reserved.
WARNING:
follow all instructions can result in serious personal injury,
damage to equipment, or voiding of factory warranty! It is the
installer’s responsibility to make sure all components are
properly assembled and installed using the instructions
provided.
WARNING:
for this component can result in serious personal injury or
damage to equipment! It is the installer’s responsibility to
make sure the structure to which this component is attached
can support five times the combined weight of all equipment.
Reinforce the structure as required before installing the
component.
Failure to read, thoroughly understand, and
Failure to provide adequate structural strength
IMPORTANT WARNINGS AND
CAUTIONS!
WARNING:
serious injury or death if you do not follow the instructions.
CAUTION:
damage or destruction of equipment if you do not follow the
corresponding instructions.
A WARNING alerts you to the possibility of
A CAUTION alerts you to the possibility of
LEGEND
WARNING:
serious personal injury or damage to equipment! It is the
installer’s responsibility to make sure the combined weight of
all components attached to this bracket does not exceed the
weight rating of the rail mount attached to this bracket.
Exceeding the weight capacity can result in
2

Installation Instructions PAC391
9/16"
(Provided)
1/8"
D (1)
A (2)
1/8"
C (4)
5/16"
B (4)
5/16"
REQUIRED TOOLS AND INCLUDED PARTS
DIMENSIONS
6.000
152.40
8.000
203.20
4.000
101.60
3.000
76.20
5.154
130.91
1.000
25.40
2.750
69.85
.492
12.49
.520
13.22
1.345
34.16
5.635
143.12
3

PAC391 Installation Instructions
INSTALLATION
WARNING:
STRUCTURAL STRENGTH FOR THIS COMPONENT CAN
RESULT IN SERIOUS PERSONAL INJURY OR DAMAGE
TO EQUIPMENT! It is the installer’s responsibility to make
sure the structure to which this component is attached can
support five times the combined weight of all equipment.
Reinforce the structure as required before installing the
component.
NOTE:
1. Verify mounting brackets on wall bracket (A) can move
freely. (See Figure 1)
FAILURE TO PROVIDE ADEQUATE
The PAC391 is compatible with the following wall
brackets: RMF1, RMT1, RLF1, RLT1 and Standard
Slat Walls.
Figure 2
5. Tighten two upper and lower button head cap screws to
secure wall bracket (A) to wall. (See Figure 3)
6. Repeat for second wall bracket (A).
Figure 1
2. Locate desired installation location and slide upper
mounting plate into wall making sure bracket is seated in
channel bottom. (See Figure 2)
3. Let lower mounting plate rest against wall.
4. Using 1/2" socket, tighten tension screw until lower
mounting plate slides into channel in wall and continue
tightening until resistance is felt. (See Figure 2)
Figure 3
4

Installation Instructions PAC391
(C) x 4
(B) x 4
(A)
Slat wall
Mount
IMPORTANT ! :
mounting surface, the display must be assembled to the mount
prior to mount installation. See the installation instructions
included with the mount.
7. Install mount to PAC-391 using four 5/16" flat washers (B)
and four 5/16" lock nuts (C). (See Figure 4)
If the display being installed has a recessed
Figure 4
8. Attach display to mount.
5

PAC391 Installation Instructions
6

Installation Instructions PAC391
7

PAC391 Installation Instructions
Chief Manufacturing, a products division
of Milestone AV Technologies
8834-000009 Rev01
©2009 Milestone AV Technologies, a
Duchossois Group Company
www.chiefmfg.com
02/09
USA/International A 8401 Eagle Creek Parkway, Savage, MN 55378
P 800.582.6480 / 952.894.6280
F 877.894.6918 / 952.894.6918
Europe A Fellenoord 130 5611 ZB EINDHOVEN, The Netherlands
P +31 (0)40 2668620
F +31 (0)40 2668615
Asia Pacific A Room 24F, Block D, Lily YinDu International Building
LuoGang, BuJi Town, Shenzhen, CHINA.
P +86-755-8996 92 26
F +86-755-8996 9217