Sonic drilling employs a high frequency, rotary vibratory drill that is designed to fluidize, overburden, and fracture rock faces. This process results in seamless casing advancement or continuous core samples that can be accessed without the application of drilling fluids.
[pdf] Turn the throttle lever gradually and drill at a slow speed until the hole is collared. The drill should be kept at right angles to the work until the hole is collared, then repositioned for angle drilling. Always apply sufficient down pressure to keep the tool from bouncing.
[pdf] The following steps outline solutions for common problems encountered with rock drills. 1. Check side rod nuts to ensure they are tight on the tool. 2. Flush cleaning solvent through the tool and then refill immediately with air tool oil or 10W equivalent. 3. Disassemble and inspect ratchet pawls.
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