What Should You Do If Your STIHL Hedge Trimmer Blades Not Moving?

by Jack Grover
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Why are Stihl hedge trimmer blades not moving? The blades of a Stihl hedge trimmer may not move due to various factors. The most severe reason we’ve found is a broken clutch. Besides, issues like the blades being full of debris can also be a reason for faulty trimmer blades.

Whatever, we want you to solve this nasty problem. As a result, we’ll walk you through the most common causes of the problem, their symptoms, and effective solutions. The solutions discussed in this article apply to all Stihl trimmer models.

So, let’s head further in.

Stihl Hedge Trimmer Blades Not Moving

The first thing you’ll see here is a quick table of the possible causes and solutions to the problem. There will be some of the most prevalent reasons, which you can discover by knowing the symptoms. However, we also won’t miss some technical problems.

Broken ClutchReplace it
Defective spark plugClean/replace it
Worn gearboxReplace it
Damaged bladesReplace/repair the blade
Motor overheating.Shut off the trimmer.

Here’s what we’ve found as the most prominent reasons and solutions for the hedge trimmer blade not moving. But wait, there’s more to discuss below. We won’t go anywhere as we have to explain the facts more precisely to you.

Stick with us here because you are just one step behind in fixing Stihl long reach hedge trimmer blades not moving issues.

Broken Clutch

A clutch plays a significant role in running the trimmer engine properly. But unfortunately, the clutch may get damaged or broken. If this happens, the engine of your hedge trimmer won’t be able to generate much speed.

So, what’s the solution here? You can, however, fix the clutch. But, if you are not an expert in this field, you would rather replace it than fix it. We believe this can help you have a hedge trimmer in which the blades move smoothly.

Note: Remove the spark plug while replacing the broken clutch. It’s a safety measure, you would say.

Defective Spark Plug

This irritating problem can frequently occur with any type of trimmer. However, when you say Stihl long reach hedge trimmer blades are not moving, experts suggest people check the spark plug. Sometimes the spark plug of your trimmer can get damaged and cause disturbance by not letting the blades move correctly.

If you see the spark plug burnt inside, you must replace it as soon as possible. Therefore, it may sometimes be OK to clean the spark plug if it becomes dirty. Looking at the outer ceramic will let you know about the plug’s condition.

Worn Gearbox

If you are facing the issue of the hedge trimmer blade not moving, a worn gearbox is another culprit behind the problem. But why are we saying this? Well, there is a close connection between the gearbox and the blades. So, if the gearbox is in trouble, it affects the blades, and the blades refuse to run properly.

So, the best solution in this scenario is to replace the gearbox and check whether the blades move properly.

Damaged Blades

This is one of the fundamental reasons Stihl hedge trimmer blades won’t move. Your trimmer blades can get damaged sometimes. However, this is a genuine reason because if you use your trimmer for a long time,

Therefore, there’s no good option to replace the blade’s teeth if it gets incredibly damaged. Besides, you need to sharpen the blades regularly to eliminate the blade damage. Don’t hesitate to remove the twigs or debris in this case. Otherwise, Stihl hedge trimmer blade replacement makes sense here.

If you need, you can learn the easy steps on how to sharpen Stihl hedge trimmer blades with easy tips.

Motor Overheating

No matter what engine you run, motor overheating is one of the most frequent issues. However, this problem becomes more acute when you go with long-time brushing. The simple rule is that the trimmer’s motor loses its productivity when it becomes too hot.

Also Read: What Stihl Hedge Trimmer Lubricant You Should Use?

If you face this sort of issue while using your hedge trimmer, you should shut it off as soon as possible. Let the trimmer have enough time to cool down so that you can use it again. You will more often face this problem while trimming the hedge.

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Frequently Asked Questions (FAQs)

Why has my hedge trimmer stopped working?

There are a few reasons why your hedge trimmer stopped working. You must first discover the reasons and then move forward to solve them. However, the most common cause is a broken clutch. Besides, you will find some fundamental reasons, like blades full of debris, faulty air and oil filters, etc. Lack of proper maintenance can be one of the apparent reasons.

How do you align hedge trimmer blades?

You can align the hedge trimmer blades with your hand. To do so, you first need to wear hand gloves. Don’t try to align the blades without wearing gloves. Next, you have to place the blades on the table in a straight position. Once you have done this, you need a screwdriver now. Place the handle of the screwdriver between the blades. If there’s too much gap, try to reduce it by pressing the blades with your fingers.

How do you unstick a hedge trimmer blade?

You have to perform a simple process. Most of the time, the hedge blades stick because of debris or dirt. As a result, the blades can’t work correctly. So, the first step is to clean the blades. Besides, don’t try to increase the trimmer’s power if the blades get stuck. Sometimes, running the trimmer slowly can help you avoid the problem. Don’t forget to keep the blades sharp and clean all the time.


Here’s how to solve the Stihl hedge trimmer blades not moving the problem on your own. Don’t get frustrated if you find a problem with your hedge trimmer blades.

As you can see, most of the issues are pretty much solvable. You don’t need to rush toward the mechanic if you have read this article carefully.

The last few words before saying goodbye, you should always try to ensure the proper maintenance of your hedge trimmer. It makes no difference what type of machine you use; overuse can cause some issues naturally.

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