How To Replace String On Weed Wacker?

How To Replace String On Weed Wacker
The fourth step is to wind the thread around the spool. – Image Credit: Getty Images / mladenbalinovac Keep your string taut and organized to prevent tangling. If your trimmer head is open, you must manually wind the string onto the spool. Ensure that the thread is tidy during wrapping so that it does not tangle on the spool.

  • Also, do not wind the string too tightly, because it may not unwind when you touch the weed wacker on the ground.
  • For spools with two strings, it is likely possible to wound both threads simultaneously; however, care must be taken to prevent tangling.
  • If your trimmer head is enclosed, you will likely need to reattach it to the weed eater before winding it.

On the trimmer head, there should be arrows that show the wind direction.

Are all Weed Wackers stringed similarly?

Restringing a String Trimmer Despite the diversity among the several different kinds of weedwackers – also known as string trimmers – they all share one characteristic: they run out of string. While replacing the string on certain older models might be difficult, it is often straightforward on modern instruments.

There is no common cap and spool mechanism, but the changes are minimal, and if you can restring one weedwacker, you can likely restring any other. For specific concerns, you may need to reference the handbook for your model, which is often available online. Remove the spark plug wire, disconnect it, or remove the battery to prevent the weedwacker from starting unexpectedly while you work on it.

Examine the string head by inverting the instrument so that the string head is facing you. If it has a knob, hold the head while turning the knob counterclockwise with one hand. This action will free the cap from the spool. If the head has two opposing tabs, you can remove the cap by pressing the tabs with your thumb and middle finger.

  1. Remove the spool from the shaft of the trimmer and remove all of the old string.
  2. Ensure that the diameter of the new string is same.
  3. Most trimmers accept microfilament string of either 0.080 or 0.065 inches in diameter.
  4. If you use the incorrect string, the trimmer will not function correctly and the motor may overheat.
See also:  What Icd-10-Cm Code Is Reported For A Patient Who Is A Habitual Abuser Of Cannabis?

Using a utility knife, cut a string length off a spool. Some models require nine feet of string, while others may accommodate up to twenty, so use a tape measure to determine how much you need. There is no issue with winding less than the maximum advised.

It just indicates that you will need to restring sooner. Some models require two equal string lengths. Insert one end of the string through the hole in the spool’s central hub and wound the string around the hub in the direction indicated by the arrow on the spool. When the edge of the coiled string is within 1/4 inch of the outer edge of the spool, the spool is full.

Leave approximately 6 inches of string unattached at the end and attach it to one of the notches on the rim of the spool. The second string should be wound in the same direction. Attach it to the opposite side’s notch on the rim. Replace the spool on the shaft, ensuring that the spring is in the same position as when it was removed.


A wider diameter will boost your cutting power and resilience against grasses and weeds that are thicker. In regions where there are few weeds, a lesser weight should be used. Check your trimmer’s handbook for model-specific line diameter restrictions.