How to Operate Road Core Drilling Machine
Install an appropriate asphalt drill bit. Move the drill machine to the work place. Fix the drill hole with expansion screws, and adjust the anchor screws, so as to make the drill rig stable. Or you can fix the core drilling machine with a sufficiently heavy baseplate, in order to prevent it from moving. Connect the water source,and check if water is flowing out. Start the generator and turn on the circuit switch. Rotate the handle, drill bit touches the road and drills coring. When the depth is about 10mm, the handle can be pressurized to speed up the rotation. After coring, you can keep rotating and raise the drill bit. When it is about 5mm away from the road surface, you can turn off the power. Remove the fixing bolts, and remove the drilling sample with clamps. Note: When the concrete core drilling machine is drilling, the feed speed should be uniform, about 3 ~ 5cm/min. If the drill bit is stuck, operator should reduce speed appropriately. It is need to raise drill b...