How to Replace a Grass Trimmer Line Head If your grass trimmer isn’t cutting as well as it used to, the problem might lie with the line head. Over time, these parts wear down or get damaged, especially when tackling tough weeds or edging along hard surfaces. Replacing the grass trimmer line head is a simple task that can breathe new life into your equipment. Whether you own a lawn trimmer, lawn strimmer, or a professional-grade brushcutter, this guide will walk you through how to replace the line head and keep your tool performing at its best. Signs You Need to Replace Your Line Head Knowing when to replace your grass trimmer head is crucial. Look out for: Cracks or visible damage to the head Difficulty feeding or advancing the line Uneven or poor cutting performance Excessive vibration during use If you’ve noticed these issues, it’s time to switch out the old line head. Tools You’ll Need Before getting started, gather these tools and materials: A replacement line head compatible with your trimmer model A screwdriver or wrench (if needed for your model) Gloves to protect your hands Step-by-Step Guide to Replacing a Grass Trimmer Line Head Disconnect the Power or Fuel Safety first! If you’re using an electric trimmer, unplug it or remove the battery. For petrol models, disconnect the spark plug. Remove the Old Line Head For screw-on models: Use a screwdriver or wrench to loosen the bolt or nut holding the head in place. Turn counterclockwise to remove it. For twist-and-pull models: Grip the head firmly and twist it off by hand. Pro Tip: Some models have a locking pin near the head to prevent it from rotating. Check your manual for specifics. Clean the Area Wipe away grass, dirt, and debris from the trimmer shaft and housing. This ensures the new head will fit securely. Attach the New Line Head Align the new head with the trimmer shaft or mounting plate. Screw it on tightly by hand or use a wrench, depending on your model. Be sure not to overtighten. Load the Cutting Line Most replacement heads require you to wind the grass trimmer line into the spool. Follow the instructions that come with the new head. Test the New Line Head Reconnect the power or fuel and run the trimmer at low speed. Check for smooth operation and proper line feed. Choosing the Right Line Head When selecting a replacement, ensure it’s compatible with your trimmer model. There are two main types of line heads: Bump-Feed Heads: Allow you to release more line by tapping the trimmer on the ground. Fixed-Line Heads: Use pre-cut lengths of line that are easier to replace but require manual reloading. For tougher jobs, consider a heavy-duty head designed for brushcutters or lawn trimmers that handle thicker vegetation. Maintenance Tips for a Grass Trimmer Line Head Clean Regularly: After each use, wipe down the head to prevent grass buildup. Inspect for Wear: Check the line head and cutting line before each use to avoid surprises mid-job. Use Quality Line: Invest in high-quality trimmer line for longer-lasting and better performance. FAQs Do Strimmers Have Line Heads or Blades? It depends! Many lawn strimmers and grass trimmers come with line heads for cutting grass and light weeds. However, some models, like brushcutters, use blades for heavier-duty tasks. Always check your tool’s specifications to understand its capabilities. To checkout our guide on changing the blades, click here. Final Thoughts Replacing a grass trimmer line head is a straightforward job that keeps your tool in peak condition. With the right replacement and proper installation, you’ll enjoy smoother, more efficient trimming for your lawn or garden. Looking for quality replacement heads or cutting lines? Visit Mowshop.com for a wide range of lawn trimmer and grass strimmer parts. We’ve got everything you need to keep your equipment running like new!
