Grass trimmer maintenance guide: keep your trimmer performing at its best
Regular maintenance keeps your grass trimmer easier to start, improves cutting performance and helps extend its lifespan.
Use this guide to understand what maintenance to perform and when. For detailed instructions, follow the linked guides throughout the article.
Quick maintenance checklist
Before every use
- Check the cutting attachment for wear or damage
- Make sure all screws and nuts are tightened
- Check that the handles are secure
- Remove grass, dirt, and debris from the machine
- Check that the cutting attachment guard is correctly fitted
Regular maintenance
- Check the fuel filter
- Inspect the fuel hose
- Lubricate the drive shaft (two-piece shaft models)
- Check cables and electrical connection
Petrol-powered grass trimmer
Learn more about petrol-powere grass trimmer maintenance
Learn more about petrol-powere grass trimmer maintenance
Before every use
- Inspect the cutting attachment
- Check that the cutting attachment guard is secure
- Tighten loose screws and nuts
- Clean external surfaces
Regular maintenance
- Clean the air filter
- Inspect the spark plug
- Check the bevel gear grease
- Clean the cooling system
- Inspect the spark arrestor (if fitted)
Seasonal maintenance
- Inspect the fuel filter
- Check the hose for cracks and damage
- Apply grease to the drive shaft (two-piece shaft models)
- Clean around the carburettor
- Inspect cables and electrical connections
Dealer maintenance
Some maintenance procedures require specialised tools and should be carried out by an authorised Husqvarna dealer according to the maintenance schedule for your model.
Maintenance after 50 hours of operation is recommended for applicable petrol models.
Battery-powered grass trimmer
Learn more about battery-powere grass trimmer maintenance
Learn more about battery-powere grass trimmer maintenance
Before every use
- Clean the product using a dry cloth
- Check that the START/STOP button operates correctly
- Test the power trigger and trigger lockout
- Inspect the cutting attachment
- Inspect the cutting attaching guard
- Tighten loose screws and nuts
- Check the suspension ring
- Inspect the battery for damage
- Check that the battery locks securely into the product
- Inspect the handle and handlebar
Regular maintenance
- Check all coupling and connections
- Inspect bevel gear grease
- Clean the motor air intake
Seasonal maintenance
- Check the battery contacts
- Inspect electrical connections
- Check that the harness safety release operates correctly
Step-by-step maintenance guides
Need help with a specific task?
- How to clean the air filter
- How to clean the cooling system
- How to clean or replace the spark plug
- How to mix two-stroke fuel correctly
- How to reload trimmer line
- How to replace a trimmer head
- Grass trimmer loses power while cutting
Maintenance tips
Regular maintenance helps:
- Improve starting performance
- Maintain cutting power
- Reduce fuel consumption (petrol model)
- Extend engine life
- Reduce unexpected downtime during the cutting season
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