Drilled shafts are high-capacity deep foundation systems, also known as drilled piers, caissons, bored piles, or cast-in-drilled-hole piles (CIDH). Drilled shafts for structural support can be installed by the dry (open hole), stabilizing polymer slurry, or steel-cased methods.
[pdf] Are holes marked and have you a suitable drill log sheet? Are the holes properly sealed by the rubber skirt? Is the dust extraction equipment fully operational? Are there any obvious signs of cracks, overhangs on/behind the face? Is the brake operational? Is your shelter up wind of the rig?
[pdf] Visit the official website of the rock drill manufacturer. Use the search function to find your specific model number. Look for a section on “spare parts” or “accessories.” You should be able to find a list of compatible parts for your model.
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