How to Guide

How do I change the air filter on my Husqvarna lawn mower?

Changing the air filter regularly is critical to the optimum functionality of your lawn mower. It’s best to refer to your engine manual to determine when exactly you need to replace your air filter with a new one. However, it’s important to keep in mind that these requirements can change based on your location and the environmental conditions there – in dustier places, you might need to replace your air filter more often than in areas with less particulate matter in the air. Failing to replace the air filter can make your engine choke for air and struggle to start up as well.

Ensure that the mower has been stopped and that the engine has been turned off before you attempt to change the filter. The parking brake must also be set while the mower is parked over a flat level surface. Carefully detach the main air filter cover once you have unfastened all the primary screws outside the housing. Clean out the area around the air filter housing before you take out the filter canister – ensure that you do so carefully and avoid getting an debris inside the filter tube. Once you have done this, carefully extract the filter canister and remove the main filter element from inside. Clean out the filter element by tapping it on a hard surface or with a soft brush. If you are unable to clean the filter adequately, it may be time to replace it with a new unit. Before inserting the filter back into the tube, clean out the inside of the canister. After this, you may proceed to insert the filter element and replace it with its housing in the mower. Fasten the housing by securing it with all the screws.

You can find a video describing how to change the air filter here


How do I carry out an oil change on my Husqvarna mower?

In order to ensure maximum longevity of your lawn mower’s engine and ensure smooth functionality, it’s imperative that you regularly change the oil as instructed in the engine manual. Remember to only use the type of oil specified in your engine manual as oils of other viscosities may damage the engine. Do not overfill oil as this can not only attract dirt, but also spill outside the operational area and result in white smoke while burning.

Ensure that the mower is parked securely on a flat level surface before you attempt to carry out the oil change. Remember that your mower must not be cold when you attempt to drain out the oil – keep the engine running for about five minutes or so and the turn it off before carrying out the oil change. This increases the oil’s viscosity and allows it to drain better. Use an oil grade vessel to collect the oil, and slide it beneath the oil drain cap under the mower. It is recommended that you empty the fuel tank before carrying out an oil change. Disconnect the spark plug assembly before carrying out the oil change, ensuring it cannot come in contact with the wiring. Now loosen the drain cap until all the oil has drained out into the vessel. Wipe any oil that may have spilled onto the surface of the mower. Once all the oil has been drained out, fasten the oil drain cap back in place and begin pouring fresh lubricant into the oil chamber. Fill only the amount of oil recommended in the engine manual and wait for a minute for the oil to settle. Use the dipstick to measure the oil level and keep adding small amounts of oil if necessary to reach the required mark. Re-connect the spark plug wiring and start the engine – allow the engine to run for about a minute to enable the oil to settle better.

You can find a video describing how to change the oil here


How do I replace the blades on my Husqvarna lawn mower?

It’s important that you replace the mower’s blades regularly to ensure that you get the best cutting experience from your lawn mower. If you notice the quality of the cut decreasing, it may be a sign that the blade has become dull or worn out. Remember that bent blades need to be replaced immediately to avoid the risk of breakage, which could cause catastrophic damage to the mower or result in injury. Always wear padded gloves when handling the blades to keep your hands safe.

Ensure that the mower has been parked in a flat level surface and that the engine has been turned off. It is highly recommended that you disconnect the spark plug assembly before attempting to change the blade. Now use a block of wood to wedge the blades in place and keep them from rotating while you are changing them. With the help of a suitable socket wrench, remove the primary blade bolt while observing the manner in which the blade is installed as it will need to be re-installed the same way. Once you have removed the blade from the unit, determine whether it needs to be sharpened or replaced. If it has become overtly dull or cracked, it needs to be replaced with a new blade. However, if you are merely sharpening the blade, ensure that you remember to balance the blade as well in order to maintain uniform thickness throughout the metal. After re-installing the blade back into the unit, fasten the blade bolt in place once more so the new blade is securely held in place.

You can find a video describing how to replace blades here


How do I replace the spark plugs on my Husqvarna lawn mower?

The spark plugs play a crucial role in starting the engine at the beginning of every lawn mowing session and it is imperative that you ensure that are in good condition. Whenever the mower is taken out after a period of storage, the spark plug gap needs to be re-calibrated. However, if you’re having trouble starting the mower, the plugs may need to be replaced with new ones.

Before you begin, ensure that the mower has been parked on a safe level surface and that the engine has been turned off. Now, carefully disconnect the spark plug assembly and wiring, suspending it off to a side. You may then proceed to remove the old spark plugs. If your spark plugs are secured with the means of screws, use a suitable screwdriver to unfasten the securing screws before you remove the spark plug. Remember that you must only use the appropriate plugs recommended by the manufacturer when replacing the spark plugs. Clean out the area around the spark plug housing before you fit the new spark plugs in place. Once you have installed the new plugs, secure them in position with the screws fastening the housing and re-connect the wiring to the unit.

You can find a video describing how to replace the spark plugs here


How do I change the drive belt on my Husqvarna lawn mower?

The drive belts are a critical component in enabling the mower to transmit power from the combustion engine to the wheels as well as the blades. Any damage or wear to the belts can result in significant loss of power, decrease in fuel economy and uneven mowing. It’s important that the belts are replaced as soon as they begin to show any signs of wear in order to keep the mower running smoothly and efficiently for long.

Remember that replacement of the belts is a slightly more challenging task and must only be attempted if you are fairly familiar with carrying out similar tasks on your mower or other power tools – if not, do not hesitate to take the unit to a service centre. Only the drive belt that has been recommended by your engine manufacturer for your engine model must be used for the mower. Before you begin, turn off the engine and disconnect the spark plug assembly. If possible, remove the cutting deck from the unit as well. Observe the configuration of the drive belt carefully because it will need to be re-installed in the same manner. Now carefully undo one side of the metal bar that joins the two sides of the pulley apparatus to loosen the tension in the attached drive belt. Once the belt has become loose enough and there is enough slack to remove it from the assembly, take out the belt and replace it with the new drive belt. Carefully insert the belt across both ends of the pulley, ensuring that the belt is fitted the right side up as per your observations of the belt you had removed. Now proceed to tighten the metal bar joining the sides to increase tension in the belt. Remember to only provide the amount of tension as recommended in the manufacturer’s manual. Do not provide an excess amount of tension as this will increase wear, also ensure that the belt is fitted properly on the centre of the pulley. Remember to tigten the belt every few weeks to counter any slack that may develop from time to time.

You can find a video describing how to change the drive belt here