How to Replace a String Trimmer Head

If you’re looking for step-by-step instructions on how to replace a string trimmer head, you’ve come to the right place.

Checkout this video:

Gather the necessary tools and materials.

Before you begin, you will need to gather the following tools and materials:
-A string trimmer head
-A screwdriver
-A set of pliers
-A replacement line (if necessary)

Cut the power.

Before you do anything, make sure to cut the power to your string trimmer. Usually, there’s a switch on the motor housing that you can flip to the “off” position. If there’s no switch, unplug the string trimmer from its power source.

Remove the spool.

Remove the spool. Depending on the model of trimmer, you will either need to unscrew the spool cap or depress a tab to release it. Once the spool is removed, pull out any residual line from the inside of the housing.

Inspect the trimmer head for damage.

Inspect the entire trimmer head for damage. If the head is cracked or otherwise damaged, it will need to be replaced. If the damage is minor, such as a small crack, you may be able to repair it with epoxy. However, it is generally best to simply replace the entire head.

Remove any old line from the trimmer head. Unwind any old line from the trimmer head. You may be able to do this by hand, or you may need to use a pair of pliers. If the line is difficult to remove, you may need to use a screwdriver to pry it out.

Insert new line into the trimmer head. Once all of the old line has been removed, insert the new line into the trimmer head. Make sure that the new line is inserted properly and that there are no kinks or knots in the line.

Wind the new line onto the trimmer head. Once the new line is inserted, you will need to wind it onto the trimmer head. Start by wrapping the line around one of the posts on the trimmer head, and then wind it around until there is about six inches of slack. At this point, you can start winding the line around itself in a clockwise direction. Continue winding until all of the new line has been used up.

Install the new trimmer head.

To install the new trimmer head, follow these steps:
1. First, remove the old trimmer head. To do this, consult your owner’s manual for specific instructions.
2. Once the old trimmer head is removed, clean the area around the trimmer shaft to remove any debris or build-up.
3. Next, take your new trimmer head and thread it onto the trimmer shaft. Make sure it is threaded on correctly and securely.
4. Finally, replace any covers or guards that were removed when you took off the old trimmer head.

Test the trimmer head.

If the trimmer head is not spinning, the first thing you should do is test it to see if there is power going to it. To do this, disconnect the spark plug wire from the spark plug. Then, hold down the trimmer trigger and pull the starter cord. If the trimmer head spins, then the problem is with the trimmer head itself and you will need to replace it. If the trimmer head does not spin, then there is a problem with the trimmer itself and you will need to take it to a repair shop.

Scroll to Top