| Job Title |
Drilling-machine Operator |
| Job Description |
Operates Mobile Drilling Machine To Drill Blastholes
Horizontally In Underground Mine Or In Face Of Strip Mine:
Drives Machine Into Room Where Coal, Salt, Or Ore Has Been
Undercut. Measures Undercuttings With Steel Rod To Determine
Depth Of Undercut And Location Of Holes To Be Drilled. Marks
Hole Locations And Boundaries Of Cut On Ribs And Face, Using
Chalk. Moves Controls To Position Drill. Starts Drill And
Advances It Into Rib Or Face To Specified Depth. Repositions
Machine To Drill Additional Holes In Specified Pattern. Observes
Electric Power Cable When Moving Machine To Avoid Damage To
Cable. May Drill Blastholes In Roof To Prepare For Blasting.
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