B&B Electronics CR-25E User Manual

Installation & Operations Manual 
CR-25E Cable Beam Barrier 

 

Installation, Adjustment & Maintenance 

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These adjustments are set at the manufacturing facility and should not need to be adjusted 
in the  field unless the arms have been modified, causing the weight of the arm to change. 
 
 
Calculating Counterweight Requirements 
 
1.  Disconnect arm drive by removing top connecting rod bolts located on each side of 

the operator. 

2.  Mark any place on the barrier arm and attach a weighing scale to the arm at that 

point. 

3.  Measure how much weight, in pounds, it takes to start raising the barrier arm. (arm 

lbs.) 

4.  Measure, in inches, the distance from the weight point to the center of the pivot point 

(arm distance). 

5.  Measure, in inches, the distance from center of pivot point to center of 

counterweight (counterweight distance). 

6.  Follow this formula to get the proper amount of counterweight to add to barrier. 

 

arm lbs. x arm dist. 

cw dist. 

 
 

 

 
12”X12”X1” THICK    =    41  POUNDS 
12”X12”X2” THICK    =    82 POUNDS