A detailed CLOSED EXPANSION TANK WEEKLY preventive maintenance c checklists
1. Safety Precautions
2. Visual Inspection
- Look for rust, pitting, or discoloration on the tank surface.
- Check welds and joints for cracks or separation.
- Assess the tank's overall condition and structural integrity.
- Inspect joints and fittings for wetness or residue.
- Look for drips or water stains on the tank surface.
- Use a flashlight to enhance visibility in low-light areas.
- Inspect for tears, compression, or missing sections.
- Check for moisture accumulation or mold growth.
- Ensure insulation is securely fastened and not loose.
- Look for rust or degradation on brackets and supports.
- Ensure brackets are securely fastened to the tank and wall.
- Check for any bending or deformation of supports.
- Inspect the valve body for rust or deterioration.
- Look for any drips or moisture around the valve.
- Ensure the valve is functioning and not stuck.
- Check for fading or damage to labels.
- Ensure all safety warnings are present and intact.
- Replace any illegible labels as needed.
- Inspect the floor area directly beneath the tank.
- Check for discoloration or dampness on surrounding surfaces.
- Identify any sources of moisture that may need addressing.
- Look for rust, cracks, or damage on pipes.
- Check for tightness of all connections and fittings.
- Ensure pipes are properly aligned and supported.
- Inspect panels for cracks or missing hardware.
- Ensure panels close securely and align properly.
- Check for signs of wear or corrosion on covers.
- Remove any debris or clutter around the tank.
- Ensure clear access for maintenance personnel.
- Check for any hazards that may obstruct operations.
- Use appropriate tools to check tightness of bolts.
- Inspect fittings for signs of loosening or movement.
- Ensure all connections are properly secured.
- Look for signs of rust or wear on equipment.
- Check for leaks or irregular sounds during operation.
- Ensure all components are functioning correctly.
3. Pressure and Temperature Checks
4. Fluid Level Inspection
- Locate the expansion tank and identify the fluid level gauge.
- Ensure that the fluid level is within the acceptable range indicated on the gauge.
- Take note of the current fluid level for documentation.
- Visually inspect the fluid for clarity and any foreign particles.
- Use a clean cloth or paper towel to wipe the gauge or dipstick.
- Check for any discoloration or unusual appearances in the fluid.
- Identify the correct type of fluid as specified by the manufacturer.
- Using a clean funnel, carefully add fluid to the expansion tank.
- Avoid overfilling; stop when the fluid reaches the recommended level.
- Locate the expansion tank and identify the fluid level gauge.
- Ensure that the fluid level is within the acceptable range indicated on the gauge.
- Take note of the current fluid level for documentation.
- Visually inspect the fluid for clarity and any foreign particles.
- Use a clean cloth or paper towel to wipe the gauge or dipstick.
- Check for any discoloration or unusual appearances in the fluid.
- Identify the correct type of fluid as specified by the manufacturer.
- Using a clean funnel, carefully add fluid to the expansion tank.
- Avoid overfilling; stop when the fluid reaches the recommended level.
- Compare the fluid's color to manufacturer guidelines for standards.
- Use a transparent container for a clearer view if needed.
- Document any discrepancies in color or clarity.
- Shine a flashlight into the tank if needed for better visibility.
- Gently shake the tank if safe to do so to observe any settling.
- Notify maintenance personnel if sediment is present.
- Use a pressure gauge to check the tank's pressure levels.
- Compare readings to the specifications in the manufacturer's manual.
- Adjust pressure if necessary by adding or releasing air.
- Carefully smell the fluid while avoiding direct inhalation.
- Look for any signs of chemical reactions or changes in smell.
- Document any unusual odors and report them.
- Use a hydrometer to measure the specific gravity of the fluid.
- Compare the reading to the acceptable limits set by the manufacturer.
- Record the measurement for maintenance logs.
- Inspect all vent lines for obstructions or damage.
- Ensure that vents are clear and functioning properly.
- Report any issues found during the inspection.
- Document the fluid level, date, and time of inspection.
- Include any anomalies or actions taken during the inspection.
- Ensure the log is signed by the technician performing the maintenance.
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