A detailed Jaw Crusher WEEKLY preventive maintenance Inspection checklist
1. General Inspection
2. Lubrication
3. Jaw Plates and Liners
- Use a caliper to measure the thickness of the jaw plates.
- Compare measurements against manufacturer specifications.
- Look for uneven wear patterns indicating misalignment.
- Document any significant wear for review.
- Use a torque wrench to verify bolt tightness.
- Replace any loose or missing bolts with appropriate replacements.
- Ensure bolts are torqued to manufacturer specifications.
- Inspect bolt holes for signs of wear or damage.
- Conduct a visual inspection for cracks or fractures.
- Use a magnifying glass for detailed inspection in critical areas.
- Mark any damaged areas for repair or replacement.
- Assess the severity of the damage for immediate action.
- Measure the discharge opening using a measuring tool.
- Adjust the opening to meet operational specifications as needed.
- Check for obstructions that may affect the setting.
- Document the setting adjustments made during inspection.
- Examine cheek plates for cracks, dents, or excessive wear.
- Use a caliper to measure thickness and compare with specifications.
- Note any irregularities for further evaluation or replacement.
- Ensure the plates are securely mounted and stable.
- Inspect jaw plate alignment using a straightedge or laser alignment tool.
- Adjust plates if misalignment is observed to prevent uneven wear.
- Ensure that mounting hardware is tight and properly positioned.
- Verify that both stationary and moving plates are parallel.
- Remove any debris or buildup using a scraper or high-pressure air.
- Check for blockages that might affect flow or operation.
- Ensure that the cleaning process does not damage the surfaces.
- Regularly schedule cleaning to maintain optimal performance.
- Inspect all bolts and fasteners for tightness.
- Look for signs of loosening or wear on fasteners.
- Clean any debris around fastening points.
- Use a torque wrench to ensure specifications are met.
- Measure the gap using feeler gauges at several points.
- Document any variations from specified tolerances.
- Adjust the gap as necessary to maintain optimal crushing efficiency.
- Ensure consistent gap measurements across the entire width.
- Examine liners for uneven wear or significant damage.
- Compare wear patterns against manufacturer guidelines.
- Replace liners showing excessive wear or cracking.
- Document liner condition and any replacements made.
- Inspect the entire jaw assembly for cracks or deformation.
- Look for signs of fatigue in welds and joints.
- Check for any unusual noises during operation.
- Replace or repair any components showing significant wear.
- Identify lubrication points on the jaw assembly.
- Use appropriate lubricant as specified by the manufacturer.
- Ensure all moving parts are adequately lubricated.
- Check for leaks or excess lubricants after application.
- Record all observations in maintenance logs.
- Note any repairs, replacements, or adjustments made.
- Use photographs to document conditions if necessary.
- Review past inspection notes to track performance trends.
4. Drive System
- Look for visible cracks or frayed edges.
- Check for any signs of excessive wear.
- Ensure belts are properly seated in pulleys.
- Replace any damaged belts immediately.
- Use a tension gauge to measure tension.
- Adjust tension according to manufacturer specifications.
- Recheck tension after adjustment.
- Ensure belts are not too tight or too loose.
- Inspect for any visible cracks or corrosion.
- Check for loose connections or fasteners.
- Assess the condition of bearings and seals.
- Look for oil leaks around the motor.
- Identify any grinding, squealing, or rattling sounds.
- Note the frequency and duration of noises.
- Investigate sources of abnormal sounds.
- Ensure that noise levels are within acceptable limits.
- Use a laser alignment tool if available.
- Check horizontal and vertical alignment.
- Adjust components as necessary to ensure alignment.
- Recheck alignment after adjustments.
- Inspect for cracks, chips or excessive wear.
- Ensure that surfaces are smooth and free from debris.
- Check for proper alignment with the drive belt.
- Replace any worn or damaged components.
- Inspect all mounting points for tightness.
- Use a torque wrench to ensure proper fastening.
- Look for signs of vibration or movement.
- Tighten any loose fasteners immediately.
- Identify lubrication points as per the manual.
- Use appropriate lubricant type and quantity.
- Wipe off excess lubricant to prevent buildup.
- Recheck lubrication levels regularly.
- Look for cracks or excessive wear on couplings.
- Check for proper alignment between connected shafts.
- Ensure that couplings are securely fastened.
- Replace any worn or damaged couplings immediately.
- Use an infrared thermometer to measure temperatures.
- Identify any components running above normal temperatures.
- Monitor for overheating trends during operation.
- Investigate and address causes of overheating.
- Inspect guards for damage or misalignment.
- Check that all fasteners are tight and secure.
- Ensure there are no gaps or openings.
- Replace any missing or damaged guards.
- Use a vibration meter to assess levels.
- Compare readings against baseline measurements.
- Investigate any spikes or unusual patterns.
- Address sources of excessive vibration promptly.
- Test the operation of overload relays.
- Check for any tripped protective devices.
- Ensure that all safety features are operational.
- Replace or repair any faulty protective devices.
- Monitor temperature readings during operation.
- Compare temperatures to manufacturer specifications.
- Identify any components exceeding safe limits.
- Take corrective action if temperatures are high.
Use in Manifestly