How tough of a job is a center swivel rebuild on an old hitachi? Looks fairly straight forward to remove.
Hey there its a very straight forward job but just be prepared to git a bit oily
First off release pressure in the hyd tank then remove lines under machine to drain the marking where they go of course first then cap the lines remove the medium size drainback line from under them achine this may leak all the time unless capped so cap it on top side of machine then rove hoses above not sure if that one comes out bottom or top so you may need a come along to remove it reseal is easy just make sure to matchmark how it came apart