Chief Manufacturing Stud Sensor CTA 225 User Manual

I N S T A L L A T I O N I N S T R U C T I O N S  
CTA-225  
Dual Stud Wall Arm  
The CTA-225 has a maximum weight capacity of  
300 lbs. (136.1 kg).  
The wall arm on the CTA-225 is 25.2” in length from the  
wall mount, providing ample room to install and position a  
small or large TV/Monitor.  
CTA-225 Dual Stud Wall Arm  
BEFORE YOU BEGIN  
CAUTION: To prevent damage to your equipment, which could affect or void the Factory warranty,  
thoroughly study all instructions and illustrations before you begin to install the CTA-225. Pay particular  
attention to the Warnings and Cautions in this document.  
If you have any questions about this installation, contact Chief Manufacturing at 1-800-582-6480 or 952-582-6480.  
CHIEF MANUFACTURING INC.  
8809-000025 (Rev. A)  
2004 Chief Manufacturing  
11/04  
1-800-582-6480 952-894-6280 FAX 952-894-6918  
8401 EAGLE CREEK PARKWAY, STE. 700  
SAVAGE, MINNESOTA 55378 USA  
 
Installation Instructions  
CTA-225  
IMPORTANT WARNINGS and CAUTIONS!  
WARNING A WARNING alerts you to the possibility of serious injury or death if you do not follow the  
instructions.  
CAUTION  
A CAUTION alerts you to the possibility of damage or destruction of equipment if you do not follow  
the corresponding instructions.  
WARNING Improper installation can result in serious personal injury! Make sure that the mounting surface  
can support a redundant weight factor five times the total weight of the equipment: if not,  
reinforce the mounting surface structural members before installing the mount.  
WARNING Be aware of the potential for personal injury or damage to the equipment if it is not adequately  
mounted.  
WARNING The installer is responsible for verifying that the mounting surface to which the CTA-111 is  
anchored will safely support the combined load of all attached components or other equipment.  
WARNING The combined weight of the TV/monitor and all attached components and equipment placed on a  
Chief Wall Arm must not exceed 300 lbs. (136.1 kg), the maximum support weight of the CTA-225.  
WARNING Watch for pinch points. Do not put your fingers between movable parts.  
CAUTION  
Check the unit for shipping damage before you begin the installation.  
CONTENTS  
INSPECT THE UNIT BEFORE  
INSTALLING  
Unpack the carton. Carefully inspect the parts for  
shipping damage. Verify contents listed in Table 2.  
CTA-225 – SPECIFICATIONS........................................2  
CONTENTS......................................................................3  
INSPECT THE UNIT BEFORE INSTALLING ..............3  
PARTS ..............................................................................4  
TOOLS REQUIRED FOR INSTALLATION..................5  
INSTRUCTIONS..............................................................5  
Installing Top Stud Spanning Adapter to Wall .............5  
Attaching Stud Spanning Adapter to Wall Arm............6  
If you are missing any of the listed parts, contact  
Customer Service at: 1-800/582-6480.300.  
Table 2. Shipping Contents  
ITEM DESCRIPTION  
QTY  
10  
20  
Wall Arm  
1
2
1
4
4
6
6
6
4
1
1
Attaching Wall Arm to Wall-Mounted Top Stud  
Spanning Adapter..........................................................6  
Attaching Bottom Stud Spanning Adapter to Wall .......7  
Attaching Front Cover...................................................7  
Connecting NPT Pipe or Nipple to Wall Arm...............7  
16” Spanning adapter  
Front Cover  
30  
40  
5/16 X 2.5” Lag Bolt  
5/16 Flat Washer  
50  
60  
M8 Flat Washer  
70  
M8 Lock Washer  
80  
M8 Hex Nut  
90  
M4 X 8mm Phillips Head Cap Screw  
M6 X 6mm Set Screw  
M3 Allen Key (not shown)  
100  
110  
3
 
Installation Instructions  
CTA-225  
PARTS  
20  
10  
30  
40  
80  
70  
60  
90  
50  
100  
Figure 1. CTA-225 Parts  
4
 
Installation Instructions  
CTA-225  
TOOLS REQUIRED FOR  
INSTALLATION  
The tools required for installation are as follows:  
Electric drill and bit set  
Stud sensor (mechanical or electronic)  
½” box-end wrench or ratchet with ½” socket  
13mm box-end wrench or ratchet with 13mm socket  
Level  
NOTE: Other tools may be required depending on  
your method of installation.  
INSTRUCTIONS  
STEP 1  
Installing Top Stud Spanning Adapter to Wall  
NOTE: The top and bottom stud-spanning adapters  
must be mounted to wood studs that are 16”  
apart on center. See Figure 2.  
1. Locate the top 16” stud-spanning adapter (20), four  
lag bolts (40), and four flat washers (50).  
WARNING  
It is the installer’s responsibility to verify that the  
structure to which the mount is anchored will safely  
support five times the combined load of all attached  
components and equipment.  
16”  
2. Determine a suitable mounting location. Keep in  
mind that both stud-spanning adapters (20) must be  
mounted to wood studs that are 16” apart on center.  
3. Using a stud sensor, locate the two wood studs where  
you will mount the top stud-spanning adapter (20).  
4. Holding the top stud-spanning adapter (20) against  
the wall, use a pencil, awl, or small nail to mark the  
mounting holes where two pilot holes will be drilled  
into the center of the wood studs. Make sure that the  
mounting holes in the unit are level.  
Figure 2. Install Stud Spanning Adapter  
5. Using a 15/64” drill bit, drill two pilot holes for  
anchoring the top stud-spanning adapter (20).  
6. Using two 5/16” lag bolts (40) and two 5/16” flat  
washers (50), install the top stud-spanning adapter  
(20) on the wall.  
5
 
Installation Instructions  
CTA-225  
STEP 2  
Attaching Stud Spanning Adapter to Wall Arm  
1. Locate the wall arm (10), bottom 16” stud-spanning  
adapter (20), three M8 hex nuts (80), three M8 lock  
washers (70), and three M8 flat washers (60).  
2. Attach the wall arm (10) to the bottom 16” stud-  
spanning adapter (20) using three M8 hex nuts (80),  
three M8 lock washers (70), and three M8 flat  
washers (60). Tighten hex nuts. See Figure 3.  
Figure 3. Attach Stud Spanning Adapter to Wall Arm  
STEP 3  
Attaching Wall Arm to Wall-Mounted Top Stud  
Spanning Adapter  
1. Locate three M8 hex nuts (80), three M8 lock  
washers (70), and three M8 flat washers (60).  
2. With an assistant, perform the following steps:  
a. Lift the wall arm (10) onto the top wall-mounted  
16” stud-spanning adapter (20). See Figure 4.  
b. Secure the wall arm (10) to the top wall-mounted  
16” stud-spanning adapter (20) using three M8  
hex nuts (80), three M8 lock washers (70), and  
three M8 flat washers (60). Tighten hex nuts.  
Figure 4. Attach Wall Arm to Wall-Mounted Stud  
Spanning Adapter  
6
 
Installation Instructions  
CTA-225  
STEP 4  
Attaching Bottom Stud Spanning Adapter  
to Wall  
1. Locate two lag bolts (40) and two flat washers (50).  
2. Using a 15/64” drill bit, drill two pilot holes for  
anchoring the bottom stud-spanning adapter (20).  
3. Using two 5/16” lag bolts (40) and two 5/16” flat  
washers (50), secure the bottom stud-spanning  
adapter (20) on the wall. See Figure 5.  
NOTES  
The front cover may be partially removed and  
reinstalled to conceal power/audio/video cables  
after the TV/Mount is installed.  
Figure 5. Attach Bottom Stud Spanning  
Adapter to Wall  
You may remove one or both knockouts on  
cover to assist routing to wall through cover.  
STEP 5  
Attaching Front Cover  
1. Locate front cover (30) and four M4 8mm Phillips  
head cap screws (90).  
2. Install the front cover (30) using four M4 8mm  
Phillips head cap screws (90). See Figure 6.  
Figure 6. Attach Front Cover  
STEP 6  
Connecting NPT Pipe or Nipple to Wall Arm  
1. Locate M6 x 6mm set screw (100) and 1-1/2” NPT  
pipe or nipple (supplied with TV Mount or  
purchased separately).  
2. Connect the 1-1/2” NPT pipe or nipple (supplied  
with TV Mount or purchased separately) to the wall  
arm (10). See Figure 7.  
3. Using the M3 Allen key (110, supplied), install the  
M6 x 6mm set screw (100). Tighten the set screw.  
WARNING  
Make sure to tighten the M6 x 6mm set screw (100)  
to prevent equipment damage or personal injury.  
Figure 7. Connect NPT Pipe or Nipple to Wall Arm  
7
 
 

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