A detailed Blower and Fan MONTHLY preventive maintenance checklists
1. Safety Precautions
2. Visual Inspection
- Check for dents, cracks, or deformities.
- Look for rust or corrosion on metal surfaces.
- Ensure all surfaces are clean and free of debris.
- Use a torque wrench to check tightness.
- Replace any missing fasteners immediately.
- Inspect for stripped threads or damaged holes.
- Check for cracks or signs of stress.
- Ensure brackets are securely fastened.
- Look for any signs of rust or corrosion.
- Inspect all gaskets and seals for wear.
- Check connections for moisture or residue.
- Tighten any loose fittings as necessary.
- Look for chips, cracks, or bending.
- Check for rust or corrosion on blade surfaces.
- Ensure blades are clean and free of debris.
- Inspect for any visible rust spots.
- Look for signs of moisture accumulation.
- Ensure casing is sealed and free from cracks.
- Inspect intake and exhaust openings thoroughly.
- Remove any visible debris or blockages.
- Ensure airflow is not restricted in any way.
- Look for cracks or tears in isolators.
- Check for loose mounts or hardware.
- Ensure all components are securely attached.
- Inspect wiring insulation for wear.
- Check for loose connections or exposed wires.
- Look for discoloration or melting around connections.
- Remove filters and visually inspect.
- Clean or replace filters as necessary.
- Ensure filters are correctly positioned upon reinstallation.
- Test operation to ensure smooth movement.
- Inspect for rust or corrosion on surfaces.
- Look for any blockages that might impede function.
- Inspect connections for heat damage.
- Check for burnt or discolored areas.
- Ensure ventilation is adequate around components.
- Check that all guards are intact.
- Ensure fasteners are tightened and secure.
- Look for any signs of damage or wear.
- Check belts for cracks or fraying.
- Ensure proper tension in belts and chains.
- Inspect pulleys and gears for alignment.
3. Electrical Components
4. Mechanical Components
- Remove any dirt, dust, or debris from the blades.
- Look for signs of rust or corrosion on the surface.
- Inspect for any physical damage or deformation.
- Ensure blades are securely attached and free from wobbling.
- Check for any unusual sounds indicating wear.
- Examine for play or movement in the bearings.
- Ensure bearings are adequately lubricated as per specifications.
- Replace any bearings showing excessive wear or damage.
- Inspect belts for fraying, cracking, or glazing.
- Check tension using a tension gauge.
- Ensure belts are aligned with pulleys correctly.
- Replace any belts that show significant wear or misalignment.
- Check that pulleys are tightly secured to their shafts.
- Remove any dust or debris from pulley surfaces.
- Inspect for signs of wear or damage on pulleys.
- Ensure proper alignment with associated belts.
- Remove any dirt, dust, or debris from the blades.
- Look for signs of rust or corrosion on the surface.
- Inspect for any physical damage or deformation.
- Ensure blades are securely attached and free from wobbling.
- Check for any unusual sounds indicating wear.
- Examine for play or movement in the bearings.
- Ensure bearings are adequately lubricated as per specifications.
- Replace any bearings showing excessive wear or damage.
- Inspect belts for fraying, cracking, or glazing.
- Check tension using a tension gauge.
- Ensure belts are aligned with pulleys correctly.
- Replace any belts that show significant wear or misalignment.
- Check that pulleys are tightly secured to their shafts.
- Remove any dust or debris from pulley surfaces.
- Inspect for signs of wear or damage on pulleys.
- Ensure proper alignment with associated belts.
- Check all mount bolts for tightness.
- Look for cracks or degradation in the mounts.
- Ensure mounts are properly aligned with the motor.
- Replace any damaged or worn mounts as needed.
- Use a torque wrench to check tightness.
- Refer to the manufacturer's manual for specifications.
- Inspect for any missing or loose fasteners.
- Replace any damaged fasteners immediately.
- Examine the housing surface for visible cracks.
- Check for rust or corrosion that may weaken the structure.
- Ensure that all seams are intact and sealed.
- Replace or repair any damaged housing components.
- Inspect hinges and latches for proper function.
- Check for signs of wear or damage on panels.
- Ensure all screws are tightened and secure.
- Replace any damaged panels or covers immediately.
- Manually check that dampers open and close smoothly.
- Inspect seals for wear and ensure they are intact.
- Verify that actuators are functioning correctly.
- Replace any faulty dampers or actuators as needed.
- Check all seals and gaskets for visible wear.
- Inspect for any oil or air leaks during operation.
- Ensure seals are properly seated and intact.
- Replace any worn or damaged seals or gaskets.
- Inspect ground connections for corrosion or looseness.
- Check that grounding wires are intact and secure.
- Test the grounding system for continuity.
- Repair or replace any faulty grounding components.
- Use an alignment tool to check motor-fan alignment.
- Adjust motor position as necessary for proper alignment.
- Inspect mounting brackets for tightness.
- Recheck alignment after any adjustments are made.
5. Performance Checks
- Position anemometer at duct outlet.
- Take multiple readings across the outlet.
- Ensure readings align with specifications.
- Document measurements for records.
- Attach vibration meter to the fan casing.
- Record baseline vibration levels.
- Compare current levels to baseline.
- Note any significant deviations.
- Use a non-contact infrared thermometer.
- Measure temperature at the motor housing.
- Compare with manufacturer’s temperature specifications.
- Log temperature for future reference.
- Listen closely for abnormal sounds.
- Identify the source of any unusual noises.
- Record findings and potential causes.
- Plan for further investigation if needed.
- Position anemometer at duct outlet.
- Take multiple readings across the outlet.
- Ensure readings align with specifications.
- Document measurements for records.
- Attach vibration meter to the fan casing.
- Record baseline vibration levels.
- Compare current levels to baseline.
- Note any significant deviations.
- Use a non-contact infrared thermometer.
- Measure temperature at the motor housing.
- Compare with manufacturer’s temperature specifications.
- Log temperature for future reference.
- Listen closely for abnormal sounds.
- Identify the source of any unusual noises.
- Record findings and potential causes.
- Plan for further investigation if needed.
- Use a tachometer to measure RPM.
- Verify RPM against specifications.
- Document readings in maintenance log.
- Investigate discrepancies if present.
- Use a manometer to measure static pressure.
- Calculate efficiency using measured data.
- Compare results with design specifications.
- Document findings for analysis.
- Use a clamp meter to measure current.
- Compare current draw against FLA rating.
- Document any abnormalities.
- Investigate significant differences.
- Use manometer at various duct locations.
- Record static pressure values.
- Analyze data for consistency.
- Identify potential imbalances or issues.
- Visually inspect ductwork for gaps.
- Use smoke or soap solution to find leaks.
- Seal identified leaks appropriately.
- Document areas repaired or needing attention.
- Check for debris or obstructions.
- Ensure all components are securely fastened.
- Clear any blockages found.
- Document condition of flow path.
- Gather historical performance data.
- Analyze data for trends over time.
- Note any significant changes or patterns.
- Plan maintenance based on findings.
Use in Manifestly