Mechanical and routime scheduled maintenances, wet and dry areas. Modification and repair work of chutes pants, transfer chutes. Repair and installation of electrical units, idlers, pulleys. Manufacture and installation of removable metal guards on conveyor belts perimeter fence. Mounting mechanical elements, alignments, launched in conveyor belts. Maintenance predictive and scheduled for dust control systems. Maintaining elements that controls the suppression system eg, cabinets, solenoid valves, regulators, filter elements, decanters moisture. Implementation dry mist operation. Maintaining dust extractors, dust collectors and lime. Changing attach holder with PVC and elements suppressor.