Chief Manufacturing Network Card CMA 152 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  
1-1/2" NPT Threaded Coupler Accessory  
Model: CMA-152  
Specifications:  
•
Couples two 1-1/2" NPT threaded columns while  
providing cable access.  
•
Intended for use with Chief CMA Series  
accessories and RPA Series mounts.  
NOTE: U.L. listed assemblies require the use of U.L.  
listed components.  
•
Weight capacity of 500 lbs (227 kg).  
BEFORE YOU BEGIN  
WARNING: It is the installer’s responsibility to make sure all components are properly assembled and installed using  
the instructions provided. Failure to read, thoroughly understand, and follow all instructions can result in serious  
personal injury, damage to equipment, or voiding of factory warranty.  
•
If you have any questions about this these instructions or your specific installation, contact Chief Manufacturing  
at 1-800-582-6480 or 952-894-6280.  
8803-000053 Rev A  
CHIEF MANUFACTURING INC.  
1-800-582-6480 952-894-6280 FAX 952-894-6918  
8401 EAGLE CREEK PARKWAY, STE 700  
SAVAGE, MINNESOTA 55378 USA  
©2006 Chief Manufacturing  
www.chiefmfg.com  
02/06  
 
Installation Instructions  
Model: CMA-152  
TOOLS REQUIRED FOR INSTALLATION  
INSTALLATION  
•
•
Pipe Wrench  
1. Screw adapter (10) onto upper 1-1/2" NPT threaded  
column by hand (See Figure 2).  
5/32" Security Hex Key (provided)  
NOTE: Other tools may be required depending on your  
method of installation.  
Upper Column  
10  
PARTS  
After unpacking carton, inspect and verify contents (See  
Figure 1). If any listed parts are missing or damaged,  
contact Chief Customer Service at 1-800-582-6480.  
Table 1: Parts  
Figure 2: Install Adapter  
Item  
10  
Description  
Qty  
1
COUPLER, 1-1/2" NPT  
SCREW, Security Set, 5/16"-18 x 5/16  
KEY, Security Hex, 5/32"  
2. Screw lower 1-1/2" NPT threaded column into  
adapter (10) by hand (See Figure 3). Tighten lower  
column securely using pipe wrench, orienting cable  
management access to desired location.  
20  
2
30  
1
COLUMN, Threaded, 1-1/2" NPT (required, not  
supplied)  
2
10  
10  
20  
Lower Column  
20  
30  
Figure 3: Install Lower Column  
3. Using key (30), install and tighten both screws (20)  
securely.  
Figure 1: Parts  
3
 
   
Model: CMA-152  
Installation Instructions  
4
 

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