Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has focused on optimizing these operations as two separate p.
[pdf] Before making any repairs, be sure the unit is unplugged and tank has no air. To remove the line and load cords from the pressure switch, the pressure switch cover will need to be removed. Use your Phillips head screwdriver to loosen the screw located either on the top or on the side of the cover.
[pdf] Use your Phillips head screwdriver to loosen the screw located either on the top or on the side of the cover. Unhook all of the black and white wires from the pressure switch using the needle nose pliers. Take a 5/16” nut driver and remove the ground screws, holding down the ground wires.
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