Mechanical Positioning
 
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3.2.5.  Horizontal Cross-Arm  
The horizontal Cross-Arm extends a maximum of 20cm. 
To position the Cross-Arm:  
1.  Release the Cross-Arm brake by placing the brake handle in the position identified by the "unlock" label.  
2.  Push or pull the Cross-Arm to the desired position. Use the centimeter scale located on the Cross-Arm 
as an aid in positioning.  
3.  Lock the Cross-Arm brake by placing the brake handle in the position identified by the "lock" label.