How to maintain your lawn mower

1Once 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.

2Once 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.

3Check 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.

4Regularly check that the wheels move freely and tighten the bolts with a wrench if they're loose. If the wheels are stiff, ask your dealer to look at them. Don't lubricate the wheels with oil as it attracts dust.

5Tip 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.

6Don't forget the mower's cuttings bag - a little care will keep it in good condition. Brush or wash off any grass or leaves, and hang it up to dry until it's needed again.

7When it comes to storing over the winter, make the mower as compact as possible by folding down the handles and hanging up the grass bag separately.