Diamond Core Drills, normally employed for drilling concrete, can be hazardous if not employed correctly. From my years of experience, I have put collectively a list of guidelines to make positive you stay safe when operating a Diamond Core Drill.
1. Site Safety
Always make certain that the basic contractor has marked the holes to be drilled to prevent liability for hitting any conduits, pressure cables or utilities embedded in the concrete. Guarantee there is absolutely nothing underneath the floor that the core could fall on, when you have drilled through the material.
Make sure that you wear the correct individual protective equipment and refrain from wearing loose clothing that could tangle in the drill motor.
three. Gear Security
Make certain that the core drill motor is not loose on the drill stand. A loose core drill motor carriage will trigger the bit not to drill perpendicular and will lead to it to jam in the hole. Make positive the gear is properly grounded.
Secure the core drill to the perform surface so that there is no movement in the drill stand.
Make sure that the drill rig is level. The set screws on every single corner of the drill base will permit you to level the drill out to assure the bit is perpendicular to the material which prevents jamming of the bit.
four. Operating Security
After the bit penetrates the drilling surface it will not move and will remain in that groove that is designed.
Use light downward pressure on the bit and do not force it. Hold the RPM’s steady.
Use a continuous water flow to clear the cuttings and to keep the bit cool.
When rebar is encountered, the water will turn clear and the bit will slow down.
When the rebar is penetrated, the bit will resume speed and the water will return to a milky colour.
If there is diamond segment height left and the bit stops cutting it may well will need to be re-dressed or replaced. Re-dress the bit to re-expose new diamond crystals by drilling into an abrasive material like a concrete block or a utilised grinding wheel.
By no means strike the barrel with a metal object to free of charge cores, it will dent the barrel. Use a piece of wood as an alternative and adjust the water flow to clear the cuttings that avoid the core from coming out of the barrel.