How To Oil Hedge Trimmer Blades

Why Should You Oil The Blades?

One of the main causes of early, unexpected failure of hedge trimmers is the fact that people don’t maintain them. Just like any other mechanical device with moving parts, if you want your hedge trimmer to function properly in the long run, you need to maintain it.

Hedge trimmer blades will clog up with debris and tree sap over time as you use them. This results in the blades becoming sticky. If the blades are not clean, you will see rough and improper cuts instead of the fine finish you want. If you continue to use your hedge trimmer without oiling the blades, there may well come a time that the hedge trimmer will get so damaged that it will stop working completely.

If you are ​a beginner who just got into using a hedge trimmer, this article is will help you in maintaining the machine properly. You can also take a look at our articles on how to use a hedge trimmer and how one basically works.

Once you’ve learned about oiling the blades, have a look at our guides to the best cordless hedge trimmer, the best gas hedge trimmer and the best corded electric hedge trimmer.

How to Oil Hedge Trimmer Blades?

Safety First

Before you learn how to oil hedge trimmer blades, you need to take safety precautions.

  • If you own an electric hedge trimmer, make sure that the hedge trimmer is properly turned off and the power cord is disconnected
  • If you have a cordless electric hedge trimmer, turn it off and disconnect the battery​
  • If you are using a gasoline trimmer, turn it off and make sure the ignition is turned off

Take extra care here, as any mistake could be the type that can cost you a few fingers.​

Even when the hedge trimmer is not on, you need to wear gloves to protect yourself from the sharp teeth.

Read your hedge trimmer's instruction manual for more information.

Oil Your Trimmer

Any light machine oil should do the job

First, remove any excess plant material, resin and sap from the blades, using a brush or cloth.

Second, apply the oil to each individual tooth, at the point where the upper and lower blades meet.

Once you apply the oil, it just becomes a matter of clearing up the excess using a rag. Make sure you are wearing protective gloves and wiping it carefully. Do not wipe it all off completely, as it will prevent the blades from rusting in storage.

See this video from Ego power tools for a guide:

Don’t Use WD40 On Your Hedge Trimmer Blades

One of the few things WD40 isn't good for

While WD40 is an effective and all-time favorite multipurpose lubricant, you should not use it for your hedge trimmer blades. WD40 is a penetrating oil, which can protect metals from rust and provide them lubrication as well. While it can provide a temporary lubrication solution to hedge trimmer blades, it is not as effective in keeping the waxy sap residue off the blades. Also, WD40 can cause damage to the very plants you’re trying to look after using the trimmer.

Oil the Blades Before Storing Your Hedge Trimmer

Timing is important

It is not just about how to oil hedge trimmer blades; the timing is also very important. Make sure that when you are done using the hedge trimmer and you will not be using it for a long time, you oil it before you store it inside. This will help clean up the hedge trimmer blades and protect them from damage when kept in storage.

Final Thoughts

Putting it all together

You should lubricate hedge trimmer blades whenever you use the trimmer. If you take care of your hedge trimmer properly, it will last a lot longer. Lubricating the blades will keep them safe from moisture, residue and help you keep the trimmer cleaner.

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