Cleaning your hedge trimmer: here’s how to do it
We tell you how best to clean your hedge trimmer and the different care needs for battery, petrol or electric power tools.
21.11.2025
Overview: cleaning your hedge trimmer
- It is recommended to secure your hedge trimmer for a basic clean after each use
- It is best to deep clean the tool before extended storage
- Essential: personal protective equipment as specified in the operating instructions
- For petrol hedge trimmers, you must also clean the air filter, fuel tank and intake opening
- Be aware of the effects of petrol-driven and battery tools being out of use for a long time
First use a brush to remove coarse dirt from the cutting attachment, then spray the hedge trimmer with resin cleaner. Finally, wipe the housing, battery and charger with a damp cloth.
For safety reasons, you should always unplug an electric hedge trimmer before cleaning it.
Spraying the cutting blade with a little resin cleaner effectively removes resin and rust from your hedge trimmer. Remember to run your hedge trimmer briefly so that the resin cleaner is well distributed on the teeth and in the gaps between them.
Why you should clean your hedge trimmer
When trimming hedges and shrubs, plant sap, resin and dirt accumulate on the blades of your hedge trimmer. Failure to remove such residue from the blades will affect the tool’s cutting performance.
Twigs and leaves stuck in the cutting attachments can also affect the function of the machine. Putting your hedge trimmer away without cleaning it risks the formation of rust. Regular cleaning of the hedge trimmer therefore protects your device from premature wear and maintains its performance.
Cleaning your hedge trimmer: Preparation
Before you start cleaning your hedge trimmer, there are a few safety precautions to take. Make sure that the device is switched off and cannot be switched on during cleaning. For
- petrol hedge trimmers, this means: remove spark plugs
- electric hedge trimmers: disconnect the plug
- battery hedge trimmers: remove the battery
- hedge trimmers with integrated battery: switch off the hedge trimmer and remove the activation key
- the charger for a battery hedge trimmer: disconnect the plug
When cleaning your hedge trimmer, always wear gloves made of durable material and protective glasses. This is to prevent injury. You can find more information about safe use of your hedge trimmer in the operating instructions for the power tool.
You will need the following tools and accessories to clean your tool:
- Brush
- Soft cloth
- Care oil and resin cleaner spray
- Screwdriver (for deep cleaning)
- Safety glasses
- Gloves made from robust material
Instructions: cleaning your hedge trimmer
Basic cleaning after use
After each use, invest a few minutes in the care of your hedge trimmer, paying particular attention to the cutting attachment. This is the part which is most exposed to external influences. The following steps should be noted for basic cleaning:
First use a brush to remove leaves, twigs and other coarse dirt from the cutting attachment, before moving on to the detailed work.
Next, spray the cutting blades with a little resin cleaner and briefly start the hedge trimmer. Running the blades allows the lubricant to spread on the teeth and in the gaps. As well as dissolving resin and rust, the resin cleaner also provides corrosion protection.
Wipe the housing, battery and charger with a damp cloth. If necessary, clean the electrical contacts of the charger with a paintbrush or soft brush.
Remove the battery from your battery hedge trimmer and store it somewhere dry, separate from the hedge trimmer and charger. You can now store the hedge trimmer with the corresponding blade guard fitted, until you next use it. Read on for even more tips for how to store batteries correctly.
Deep cleaning before extended storage
From time to time your hedge trimmer needs a deep clean. It is advisable to do this before storing the device for several months or if it is no longer functioning optimally.
To do so, proceed as follows:
To deep clean the hedge trimmer, disconnect the cutting attachment from the tool. To do this, use a screwdriver to loosen two screws: one connects the gear to the blade, the other is on the blade itself.
Use a brush to remove any dust and dirt from the blades. If your hedge trimmer has accumulated a lot of resin, this can be effectively removed with a resin cleaner.
An important step that must not be neglected under any circumstances: sharpening the hedge trimmer. Every instance of contact with thick branches and leaves contributes to the blunting of the blades, which ultimately affects the cutting result. The power tool then also requires more energy to do the job.
Finally, spray the clean, freshly sharpened blades on both sides with a care oil; reattach the cutting attachment to the housing and cover it with the corresponding protective cover.
Cleaning your hedge trimmer: special considerations for petrol and battery hedge trimmers
In addition to the above-mentioned cleaning steps, you should note these special considerations for petrol and battery devices which will be out of use for an extended period (3 months or longer):
| Petrol |
|---|
Empty the tank: after the last use, the fuel tank of the hedge trimmer should be emptied in a well-ventilated place and the removed fuel disposed of in an environmentally responsible manner. |
| Run the carburettor empty: start the machine and let it run for a short time. |
| Check the air filter, cool air intake and/or spark plugs. |
| Clean the cool air intake opening if needed. In the event of insufficient engine power, replace the spark plug and clean the air filter. |
Video: cleaning the air filter of a STIHL petrol hedge trimmer
| Battery |
|---|
Remove the battery and fit the slot cover. |
| Cleaning: clean the battery with a damp cloth. |
| How to charge correctly: the lithium-ion battery can be charged at any time, regardless of the charge level. However, avoid fully discharging the battery, as this can seriously damage the charging capacity. |
| Storing a battery: charge the battery to between 40 and 60 percent (2 green LEDs lit) before storage and store it separately from the charger. |
You can find detailed information about this in the user manual for your tool.
Cleaning hedge trimmers with household products
Simple home remedies are often enough to remove rust from your hedge trimmer. A homemade paste of baking soda and water, diluted vinegar or citric acid can help to remove traces of rust.
When it comes to the quality of oil however, it is not advisable to cut corners: you should only use special hedge trimmer oil, or alternatively chainsaw oil. Otherwise there is a considerable risk of damaging the rubber seals.