A detailed Epicyclic gearbox QUARTERLY preventive maintenance checklists
1. Visual Inspection
2. Lubrication Check
3. Operational Checks
4. Internal Inspection
- Use correct tools to safely open the gearbox.
- Follow manufacturer guidelines for disassembly.
- Carefully remove components and label them for reassembly.
- Inspect internal parts for any visible damage during removal.
- Examine gear teeth for signs of wear or pitting.
- Use a magnifying glass for detailed inspection.
- Look for unusual wear patterns or scoring.
- Document any findings for further analysis.
- Check for discoloration or deformation of bearings.
- Spin the bearings to ensure smooth operation.
- Listen for unusual noises indicating damage.
- Replace any defective bearings immediately.
- Inspect each fastener for rust or corrosion.
- Tighten any loose fasteners to manufacturer's torque specs.
- Replace any corroded fasteners with new ones.
- Document any replacements made during inspection.
- Remove any accessible covers.
- Visually inspect seals and gaskets.
- Check for signs of wear, cracks, or deformation.
- Look for fluid leakage around seals.
- Replace any damaged seals or gaskets.
- Remove necessary components for access.
- Visually check planet gear alignment.
- Ensure gears mesh smoothly without obstruction.
- Inspect for wear on gear teeth.
- Reposition or replace misaligned gears.
- Use a dial indicator to measure backlash.
- Position the indicator on the gear tooth.
- Rotate the gear to check play in both directions.
- Compare readings to manufacturer specifications.
- Adjust gear positioning if necessary.
- Drain lubricant into a clean container.
- Inspect for color, consistency, and particles.
- Check for any unusual odors.
- Test viscosity if applicable.
- Replace lubricant if contaminated or degraded.
- Remove internal components for visibility.
- Visually inspect all surfaces for scoring.
- Look for discoloration or unusual wear patterns.
- Use a magnifying glass for detailed inspection.
- Replace any components showing significant wear.
- Remove thrust washers and shims from assembly.
- Inspect for wear, cracks, or deformation.
- Check thickness against manufacturer specifications.
- Replace any damaged or excessively worn washers or shims.
- Reinstall components ensuring proper fit.
- Use compressed air to blow out debris.
- Wipe surfaces with a lint-free cloth.
- Inspect all crevices and cavities.
- Ensure no foreign materials remain.
- Clean thoroughly before reassembly.
- Inspect gearbox mounting and alignment.
- Look for uneven wear on gears.
- Check for vibration or noise during operation.
- Realign components as necessary.
- Document any misalignment corrections made.
- Remove filters and inspect visually.
- Clean or replace filters if dirty.
- Use a flexible brush to clear passages.
- Check for fluid flow through passages.
- Ensure no blockages remain.
- Conduct a visual inspection of the housing.
- Look for visible cracks or deformations.
- Use a magnifying glass for detailed checks.
- Tap the housing to check for hollow sounds.
- Repair or replace damaged housing as necessary.
- Record all inspection results in a log.
- Note any repairs or replacements made.
- Include photographs if necessary.
- Review findings with maintenance team.
- Plan follow-up actions based on observations.
Use in Manifestly