| Job Title |
Core-drill Operator |
| Job Description |
Sets Up And Operates Drilling Equipment To Obtain Solid Core
Samples Of Strata For Analyzing Geological Characteristics Of
Ground, Nature Of Ore, Or Strength Of Foundation Material:
Drives Or Guides Truck-mounted Drilling Equipment Onto Metal Or
Wood Foundation, Or Assembles Equipment In Position. Connects
Power Lines To Equipment. Attaches Diamond Churn, Alloy, Or
Percussion Bit To Drill Rod, And Fastens Rod In Machine, Using
Wrench Or Other Handtools. Starts Power Unit. Moves Clutch And
Throttle To Control Rotation And Feed Of Drill Bit Into Ground.
Couples Additional Lengths Of Drill Rod As Bit Advances.
Withdraws Drill Rod From Hole After Specified Depth Has Been
Reached And Extracts Core From Hollow Barrel Located Behind
Drilling Bit. Records Depths From Which Core Samples Are Taken.
Lubricates Machine, Using Grease Gun, And Replaces Parts, Such
As Worn Winch Cables. May Replace Diamonds In Bit As They Become
Worn, Chipped, Or Lost, Where Diamond Drill Is Used [diamond
Mounter (machine Tools)]. May Operate Water Pump To Pump Water
Down Borehole To Cool Drill Bit. May Be Designated According To
Type Of Drill Used As Diamond Driller (any Industry).
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