$4.$Techinical Report D

In the system below a double acting cylinder is holding a load $($ sometimes heavy load$)$

Complete the missing connection passing by the dot lines shown in the drawing $.$ The purpose is to

direct the oil coming from the pump to the storage tank when the sequence valve opens $.($ load is very

heavy $)($ the sequence valve and the counter balance valve have the same set pressure $).$

A$.$ Draw the missing connection lines $($ show the pilot lines in dash lines$).$

B$.$ Make a technical report by explaining in details how the system works $.$