Keeping your Wacker Neuson ET90 in peak operating condition starts with the right parts and a solid maintenance routine. Ensure your excavator stays in top shape with high-quality oil filters, air filters, lights and more. The ET90 offers strong digging force, efficient hydraulics, and smooth control, making it an ideal mid-size machine for a range of tough excavation jobs. Don’t forget to stay on top of your maintenance—secure the parts you need to keep your Wacker Neuson ET90 running smoothly!
Walk-Around Inspection
- Check hydraulic hoses, lines, and fittings for leaks or abrasion
- Inspect undercarriage components, including tracks, rollers, and tension
- Look for damage or excessive wear on the bucket, boom, and attachments
- Inspect cooling system and clean radiator and cooler fins
- Verify lights, horn, and safety indicators are operational
- Check mirrors and windows for visibility and cleanliness
Daily Maintenance
- Check engine oil, hydraulic oil, and coolant levels
- Clean and inspect air intake and filters
- Drain water from the fuel/water separator
- Grease swing bearing, bucket, arm, and boom pivot points
- Check for warning lights or maintenance alerts on the display
- Verify seat belt, control levers, and operator platform function properly
Every 50 Hours
- Lubricate all daily service grease points again
- Clean hydraulic quick couplers and attachment interfaces
- Inspect air filter indicator for clogging
Every 250 Hours
- Change engine oil and replace oil filter
- Inspect and clean or replace cabin air filter
- Check alternator belt for tension and wear
- Inspect and torque wheel bolts, boom pins, and structural fasteners
Every 500 Hours
- Replace hydraulic return filter element
- Inspect battery and terminals, clean and grease as needed
- Check and clean diesel particulate filter sensor lines (DPF model only)
Every 1,000 Hours
- Change hydraulic oil if hammer use exceeds 40% of operating time
- Replace primary and secondary fuel filters
- Change coolant if not done annually
Every 2,000 Hours
- Change final drive oil
- Check and replace V-belt if worn
- Inspect electrical connectors and relays in engine bay
- Perform in-depth DPF system check and regeneration history review
Annual Maintenance
- Flush and refill hydraulic reservoir (every 12 months or 2,000 hours)
- Inspect full machine frame, welds, and stress points
- Clean entire cooling group: radiator, charge air cooler, oil cooler
- Check protective structures, cab mount bolts, and glass integrity
As-Needed Maintenance
- Replace worn bucket teeth, pins, and bushings
- Inspect and replace lights, fuses, or warning indicators as needed
- Grease track tensioning system and adjust if out of spec
- Replace hoses or hydraulic lines showing cracks, leaks, or wear
Final Maintenance Recommendations
Regular maintenance keeps your Wacker Neuson ET90 operating safely and efficiently. For a full range of Wacker Neuson parts, explore our extensive EquipmentShare parts catalog. If you can’t find the part you need, reach out to our parts experts for a custom order.