{TAIL ~ The kick mechanism} has one end fixed to the chassis and the other end provided with a kick body capable of supporting the centers of the boom assemblies and provided with a detecting means for detecting contact between the boom assemblies and {HEAD ~ the kick mechanism} 
{ TAIL ~ The kick mechanism } has one end fixed to the chassis and the other end provided with a kick body capable of supporting the centers of the boom assemblies and provided with a detecting means for detecting contact between the boom assemblies and { HEAD ~ the kick mechanism }
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