The front portion is often often called the boom, whilst the latter is called the dipper-stick or dipper.  Trenchers, generally known as Trenching Equipment, are utilized to dig trenches in the bottom. The trenchers could possibly be accustomed to lay pipes and floor cables or in planning for trench warfare. https://dallastjwky.shoutmyblog.com/29006331/the-5-second-trick-for-heavy-machinery