How to Change a Brush Blade on a Stihl FS 130 R


The nylon cutting string may be removed from the Stihl FS 130R weed trimmer and replaced with a brush blade instead. A brush cutter blade that is attached to a string trimmer is able to easily remove vines, woody brush, and small trees with a diameter of up to 3/4 inches when it is used. When the brush blade on your weed trimmer becomes worn out, has missing teeth, or does not cut particularly well, it is time to replace it with a new blade so that you may trim vegetation more quickly. For your own protection, keep the barrier that protects you and be sure to wear gloves while carrying out this process.

  1. 1. Turn Off the Weed Trimmer

    To halt the spinning of the blade, depress the throttle trigger located on the bottom control handle of the weed trimmer. To stop the engine, move the slide control that is located on the top of the control handle toward the back of the tool where the engine is located.

  2. 2. Cool the Trimmer Engine

    Take hold of the spark plug boot that is made of black rubber and is located on top of the engine cover. Pull it off the spark plug. Invert the weed trimmer so that the gear head is resting on a flat, level surface and the brush blade is pointing in the upward direction. Please give the engine time to totally cool down.

  3. 3. Remove the Mounting Nut

    According to Stihl, the best way to protect your hands from sharp blades is to wear leather gloves. Under the blade, on the right side of the gear head, there is a hole for the output shaft. Insert an Allen wrench into this hole. Maintain your grip on the Allen wrench so that it is facing inward. Position the Stihl combination tool so that it sits on the mounting nut at the very top of the blade. To remove it and make it easier to remove, turn it counterclockwise. Take the Allen wrench out of the socket.

  4. 4. Remove the Rider Plate

    Straight up and off of the tool, pull the rider plate and the washer that is located beneath the mounting nut. The rider plate is a piece of metal that has the appearance of an inverted bowl, and the washer may be found beneath it.

  5. 5. Replace the Brush Blade

    Take hold of the old Stihl brush cutter blade with one hand on each side, and then lift it straight up and off the output shaft of the tool. A piece of threaded metal projecting from the middle of the gear head is what is known as the output shaft. Make sure that the teeth of the new brush blade are facing in the clockwise direction when you install it on the output shaft.

  6. 6. Stihl Grass Cutting Blade Installation

    Ensure that the flat side of the washer is facing down when you replace it, along with the rider plate and the mounting screw on the output shaft. Put the Allen wrench back into the output shaft, and be sure to keep it in that position. Utilizing the combination tool, ensure that the mounting nut is snugged in a clockwise direction. After it has been removed, the spark plug boot should be securely reinstalled on top of the spark plug. Stihl recommends that before continuing to work in the yard, one should make certain that all of the nuts and bolts have been adequately tightened and that the blade may move without restriction.

    Things You Will Need

    • Leather gloves

    • Allen wrench

    • Stihl combination tool

    • Adjustable wrench (optional)

    • Brush blade


    If you cannot find the combination tool that came with the Stihl FS 130 R that you purchased, you may use an adjustable wrench in its stead to take off and put back on the mounting nut.


    It is important that you do not take the safety cover off of your Stihl weed trimmer. It prevents the blade from slicing through anything that shouldn’t be sliced, including the operator.

    When cutting brush or small trees, always utilise the left side of the brush blade. This will avoid kickback, which is when the blade is suddenly and violently pushed to the rear or back and may cause injury.