The strings in a string strimmer wear down bit by bit for consuming grasses, weeds, thicker bushes, and repeated contact with stones, trees or any hard objects. Then the string trimmer can’t perform perfectly as like before, therefore, the line becomes indispensable to be replaced.
Due to replacing the string trimmer line at first you must have a spool, new strings, and a scissor. In the market, you will find various strings with different width and several types of spools so you must be sure about the width of the string and the form of the spool that you need. Because if they do not match with the configuration of your string trimmer, the trimmer won’t work.
For replacing it people may go to the hardware store but there is no need to waste your money because the string trimmer line can be easily replaced by yourself if you pursue the best guide step by step. This article will gift you the perfect knowledge about how to replace string trimmer line exactly without doing wrong while winding.
How to Replace the String Trimmer Line
Most string trimmers have a bump style head with a spring-loaded knob in the center which called bump knob. After a season or depending on how much you use your trimmer, the string gets worn out or broken or gets used up and it’s making your trimmer useless. Then its high time to replace the string and make the trimmer back to start working like before.
Below there are some ways to replace the string trimmer with just some easy steps. However, some of the ways may require a little hard work but it’s up to you if you want the procedures to step by step or do it in your own way.

Removing the Old Line and Spool
1. Turn off All the Power to Your Trimmer
To safely replace the line, it’s important to unplug the trimmer or power off it properly. This can prevent an accident or it may cause big injurious to your body.
2. Place the Trimmer on a Flat Surface
To do the replacement easily, it’s needed to place the trimmer on a flat surface like a table or desk. You can place a box or hard thing under the shaft for giving support the machine such that it can’t move while pressing the head for removing the cap from the trimmer head.
3. Remove the Cap from the Trimmer Head
There would be a cap on top of the line that should be removed by using your fingers to press one or multiple tabs. But sometimes, the cap has screws on it which is needed to be unscrewed and pull the head out of that area. Some trimmer has different manufactures for removing the cap, that depends on the design and must be intuitive.
4. Pull the Spool from the Cap
By turning over the cap, pull your line free from the holes on the cap and grab onto the spool and wiggle it free from the cap. Don’t pull it in rush, it will come smoothly otherwise it may get crack or can be broken.
5. Remove the Old Line from the Spool
To remove the old line, lift it from the eyelets that hold it in place and pull the free end of the line and repeat it.
Replacing the Old Line
1. Thread Your New Line into the Holes Designed on Your Spool
Do not use a serrated or heavier line in your spool because it can cause overheating. The line must be of a particular width and length that your old trimmer line had. If you don’t know these accurately, no problem, check online or manufacture’s department for knowing your required width and size.
2. Wind the Line Around the Spool, Following the Arrows on the Spool
Feed them through the hole and wrap it around the spool clock-wise or anti-clock-wise as the model needed it to be. It basically follows the small hole of the guard, when the string runs clockwise then you should wind your line anticlockwise and other needs to be with the reverse method.
At that moment, the repeated line should be ended at the opposite point of the spool so that the eyelets can be matched on the outside of the string trimmer.
3. Secure the Line to the Spool and Cut the Line
After wrapping it up, cut the thread with sharp scissors and put the access line through the eyelets on the spool and repeat in on the other side too. When 5’’ or 6’’ of the line remaining, snap the line into the retainer on the spool for holding tightly in the place. If you face any trouble or difficulty to thread the line into the starter hole, you may cut the line at an angle, it will be easy for threading.
Installing the Spool
1. Set the Spool into the Cap
The eyelets and the spool should be lined up in the center and gently press the spool in the cap.
2. Lace the Line Through the Eyelets on the Cap
Pull the excess line out of the eyelets on the spool and push them into the eyelets on the cap.
3. Line up the Tabs on the Cap and Trimmer Head and Press Down
Lightly press down on the side tabs on your cap to fit into the trimmer head. Don’t give extensive pressure because it will perform according to its ability otherwise it will be cracked or broken.
However, there are different types of trimmers, the replacement and installation procedures remain almost the same in every case but a little different because of the model of the trimmers.
Conclusion
Although replacing strings is not so complicated nevertheless it may require some limitations while winding the line in the spool. The line must be in straightly wrapped without having any crossing as this line is a self-feeding line for a string trimmer.
Before starting to replace the string trimmer line you must be careful about that the power of the machine is in off mood and the gear is cold otherwise you may get injured during working.
Honestly, if your arsenal has been bearing a string trimmer with the worn downline, you should replace the line with the new string. Don’t get afraid because this article has been discussed the best guide for replacing the string trimmer line. By getting the help of this article you can turn your used-up string trimmer into a hungry string trimmer as like before and you will enjoy happy trimming.