I have a NH TC29D with a Woods 6500 subframe backhoe. The mechanism to move the boom left and right is a one piston and chain system. I have never seen this on any other backhoe. All others have a separate piston for each directions. Has anyone had experience with both systems? The chain setup seems weak. Pic is attached. Thanks. 
John
		
		
	
	
		 
	
	
		
			
		
		
	
				
			John
 
  
 
		 
 
		