No matter how many precautions are taken, any form of underground mining is a hostile working environment for people and machinery.
Working in often limited lighting conditions, high heat, humidity and other challenging environmental factors is a recipe for safety hazards unless the right precautions are taken.
Maintenance people working underground are exposed to a considerable amount of hands-on work such as using tools to remove nuts and bolts when separating pumps, flanges and fittings. Inspection and servicing of ventilation fittings involve removal of vent clips and hatches.
Other maintenance jobs that involve manipulation of shackles and other types of fasteners may also be hazardous if protection against slippage and cuts is inadequate. If hand tools slip during these operations, there is a real chance that the backs of hands, knuckles or fingers may be injured by contact with sharp metal edges.