Ww jaw crusher in installation. Jaw crusher machine installation instructions. 1. Jaw Crusher Installation Operation cone crusher, engineering, installation and commissioning of the stone crushers.Jaw-crusher Construction. Jaw crushers are heavy-duty machines and hence must be robustly constructed. The main frame is often made from cast iron or steel, connected with tie-bolts. It is commonly made in sections so that it can be transported underground for installation. Modern jaw crushers may have a main frame of welded mild steel plate.