How to lubricate the gearbox of a brush cutter in a simple way

How to properly lubricate the gearbox of a brush cutter? Many trimmer users do not pay attention to overheating of the mowing head gearbox. And, naturally, when something breaks, they immediately run to a repair shop. To save time and money on repairs, just lubricate the gearbox before the start of the season and forget about extra costs.
The gearbox is one of the most loaded parts in this device and quite often fails. Therefore, it definitely needs periodic maintenance.
Will need
For lubrication you will need very few materials and tools:
- Disposable syringe with a volume of 5-20 ml.
- Branded lubricant recommended by the manufacturer. As an exception, another type “Litol 24”, “CV joint” or another designed for lubricating gearboxes is suitable.
- Hex key.
Lubricate the trimmer gear yourself
There is a bolt on the side of the head that is specially designed to introduce lubricant inside.

Unscrew it with a hex key.

We take a syringe and temporarily remove the plunger from it. We put lubricant into the cylinder.Usually this amount is 5-10 grams (a more precise amount is written in the operating manual for the lawn mower).

We install the piston in place and use a syringe to pump lubricant through the hole into the gearbox itself.


When the gearbox is full, tighten the bolt into place.

This completes the lubrication of the gearbox and your trimmer is ready for use.

Don’t be lazy to spend a couple of minutes after purchasing a lawn mower and before the mowing season to lubricate this important unit. And your tool will always be ready for work at any time and will last for many, many years.
Watch the video
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