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How to maintain your lawn mower

A well-maintained lawnmower cuts better and lasts longer. Find out how to maintain your mower, in our guide.

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To do

Do To do in January

Do To do in February

Do To do in March

Do To do in April

Do To do in May

Do To do in June

Do To do in July

Do To do in August

Do To do in September

Do To do in October

Do To do in November

Do To do in December

If you’ve got a petrol rotary lawnmower, you can get the best from your machine by carrying out a series of simple jobs every month. Always consult the owners’ manual or contact your local dealer for further advice about your specific model before you start. When you’re ready, remove the spark plug cap so the mower can’t start unexpectedly.

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You Will Need

  • Petrol lawnmower
  • Cloth
  • Socket wrench
  • Adjustable spanners

Total time:

Step 1

How to maintain your lawn mower - removing the spark plug
How to maintain your lawn mower – removing the spark plug

Once the spark plug cap is removed, check to see if the spark plug is dirty, removing it with a socket wrench and brushing it off if necessary. If it’s very dirty you can replace it for under £5.

Step 2

How to maintain your lawn mower - wiping the dipstick
How to maintain your lawn mower – wiping the dipstick

Once a month pull out the dipstick, wipe it clean, re-insert it and pull it out again, checking the oil level reaches the line indicated. If it needs topping up, check which oil the owners’ manual recommends before adding any.

Step 3

How to maintain your lawn mower - checking the air filter
How to maintain your lawn mower – checking the air filter

Check the air filter every month and replace it when it becomes grimy. Your local dealer can tell you which type will suit your mower and it should cost no more than £10 to replace.

Step 4

How to maintain your lawn mower - wiping the mower
How to maintain your lawn mower – wiping the mower

Wipe all parts of the mower with a light oil to clean and protect them from rust.

Step 5

How to maintain your lawn mower - wiping the underside
How to maintain your lawn mower – wiping the underside

Tip the mower on its side, keeping the air filter facing upwards to stop oil or dirt pouring into it. Wipe the underside of your mower with a damp cloth to prevent grass build-up and to stop it rusting. Check the wheels to ensure they move freely and tighten the bolts with a wrench if they’re loose.

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Fuel can go stale over time so before you put your lawnmower into the shed for the winter, empty the petrol tank.

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