A detailed Epicyclic gearbox SEMI ANNUAL preventive maintenance checklists
1. Visual Inspection
2. Lubrication Check
3. Operational Checks
4. Component Inspection
- Remove bearings from the assembly.
- Check for surface irregularities or discoloration.
- Measure the clearance between the bearing and shaft.
- Rotate the bearing to detect any roughness.
- Replace if wear exceeds manufacturer specifications.
- Clean gears thoroughly before inspection.
- Use a magnifying glass to inspect gear teeth.
- Look for signs of surface degradation or material loss.
- Check for proper meshing with other gears.
- Replace gears showing significant defects.
- Use a dial indicator to measure shaft runout.
- Check alignment with manufacturer specifications.
- Inspect for signs of wear or scoring on the shaft.
- Ensure bearings are properly seated.
- Realign or replace if misalignment is detected.
- Remove seals and O-rings from their grooves.
- Check for cracks, hardness, or deformation.
- Ensure sizes match specifications for a tight fit.
- Inspect installation surfaces for damage.
- Replace if any wear or damage is present.
- Remove bearings from the assembly.
- Check for surface irregularities or discoloration.
- Measure the clearance between the bearing and shaft.
- Rotate the bearing to detect any roughness.
- Replace if wear exceeds manufacturer specifications.
- Clean gears thoroughly before inspection.
- Use a magnifying glass to inspect gear teeth.
- Look for signs of surface degradation or material loss.
- Check for proper meshing with other gears.
- Replace gears showing significant defects.
- Use a dial indicator to measure shaft runout.
- Check alignment with manufacturer specifications.
- Inspect for signs of wear or scoring on the shaft.
- Ensure bearings are properly seated.
- Realign or replace if misalignment is detected.
- Remove seals and O-rings from their grooves.
- Check for cracks, hardness, or deformation.
- Ensure sizes match specifications for a tight fit.
- Inspect installation surfaces for damage.
- Replace if any wear or damage is present.
- Remove planet gears for thorough inspection.
- Check for uneven wear patterns on the teeth.
- Inspect for cracks or chips on the gears.
- Ensure proper lubrication levels are maintained.
- Replace if any damage or excessive wear is noted.
- Inspect the housing exterior for visible damage.
- Check internal surfaces for corrosion or rust.
- Look for signs of stress or fatigue around mounting points.
- Use a flashlight to check dark areas.
- Repair or replace if significant damage is found.
- Remove the sun gear for detailed inspection.
- Examine gear teeth for wear patterns or chipping.
- Check for proper fit in the assembly.
- Ensure lubrication is adequate and effective.
- Replace if wear exceeds acceptable limits.
- Examine the carrier for cracks or bends.
- Check that all planets are properly secured.
- Ensure there is no excessive play in the assembly.
- Inspect mounting points for signs of wear.
- Repair or replace if structural issues are found.
- Use a torque wrench to check fastener tightness.
- Refer to manufacturer specifications for torque values.
- Inspect for any signs of loosening or damage.
- Retighten fasteners that are not to spec.
- Replace any damaged fasteners as needed.
- Use compressed air to clear passages.
- Inspect for signs of sludge or buildup.
- Check for leaks or signs of wear in seals.
- Ensure oil flow is unobstructed.
- Clean or replace components if blockages are found.
- Inspect all joints and seals for fluid residue.
- Look for puddles or staining on surfaces.
- Use a dye to detect hard-to-see leaks.
- Tighten or replace seals as necessary.
- Document and address any findings promptly.
- Use a dial indicator to measure backlash.
- Refer to manufacturer specifications for tolerances.
- Adjust gears to achieve proper backlash if necessary.
- Record measurements for maintenance logs.
- Replace gears if backlash is beyond acceptable limits.
- Check for scoring or wear on shaft surfaces.
- Inspect for proper engagement with couplings.
- Ensure there is no excessive play in connections.
- Clean shafts to evaluate condition accurately.
- Replace any worn shafts as needed.
- Inspect dampers for signs of wear or damage.
- Check for proper installation and alignment.
- Ensure isolation materials are intact.
- Test for functionality if applicable.
- Replace any damaged components.
- Inspect all components for color changes.
- Check for warping or distortion in parts.
- Evaluate lubrication quality for signs of overheating.
- Document findings and determine root causes.
- Address any overheating issues immediately.
- Remove components for detailed inspection.
- Check for wear patterns or surface damage.
- Ensure proper fit with mating surfaces.
- Inspect fasteners and alignment.
- Replace if wear or issues are detected.
Use in Manifestly