The boom assemblies are disposed between a chassis and {TAIL ~ a platform} for raising and lowering the platform in interlocking relation with {HEAD ~ an operating mechanism}, a guiding mechanism and a synchronizing mechanism 
The boom assemblies are disposed between a chassis and { TAIL ~ a platform } for raising and lowering the platform in interlocking relation with { HEAD ~ an operating mechanism } , a guiding mechanism and a synchronizing mechanism
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH