Test and Inspect: Visually inspect and test equipment to determine its operating condition and efficiency. Typical activities include, but not limited to: Testing for excessive vibration; motor winding resistance; refrigerant charge; fan RPM; refrigerant oil (acid); water condition; flue gas analysis; safety controls, combustion and draft; crankcase heaters, control system(s), etc. Inspecting for worn, failed, or doubtful parts; mountings, drive couplings; oil level; rotation; soot, flame composition and shape; pilot and igniter; steam, water, oil and/or refrigerant leaks, etc. Preventive Maintenance: Clean, align, calibrate, tighten, adjust, lubricate and paint equipment. These activities are intended to extend equipment life and assure proper operating condition and efficiency. Typical activities include but are not limited to: Cleaning coil surfaces; fan impellers and blades; electrical contacts; burner orifices, passages and nozzles; pilot and igniter; cooling tower baffles, basin, sump and float; chiller, condenser and boiler tubes Aligning belt drives; drive couplings; air fins. Calibrating safety controls; temperature and pressure controls. Tightening electrical connections; mounting bolts; pipe clamps; refrigerant piping fittings; damper sections; motor and blower mounts Adjusting belt tension; refrigerant monitoring; super heat; fan RPM; boiler water chemical feed and feed rate; burner fuel/air ratios; gas pressure; set point of controls and limits; compressor cylinder unloaders; damper close-off; sump floats. Lubricating motors; fan and damper bearings; valve stems; damper linkages; fan vane linkages. Painting for corrosion control as directed by our scheduling system and on an as-needed basis. Repair or replace broken, worn and/or doubtful components and/or parts.
