Chief Manufacturing Dual Stud Wall Arm CTA-225 Manual De Usuario

Installation Instructions 

CTA-225 

 

 

5

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 

Other tools may be required depending on 
your method of installation. 

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).  

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. 

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. 

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. 

 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16”