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How to Service a Husqvarna Riding Mower: Step-By-Step

by Jack Grover
person wearing red shirt riding orange lawn mower
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If you want to keep your Husqvarna riding mower running smoothly and ensure its longevity, regular servicing is a must.

Even though it may seem like a chore, doing this task is necessary to prevent any issues in the future.

This article will guide you through the entire process, from gathering all the necessary tools and supplies to cleaning and storing the mower after greasing lubrication points.

By following these steps and referring to our list of common Husqvarna lawn mower problems and solutions, you’ll be able to service your Husqvarna riding mower effectively.

So let’s get started!

Gather Tools and Supplies

First, to make sure the job is done right, gather all the tools and supplies you’ll need.

Your toolkit should include:

  • socket or spanner wrenches,
  • a filter wrench,
  • a deck scraper or wire brush,
  • a plastic funnel,
  • an oil drain pan,
  • engine oil and filter,
  • spark plugs,
  • an air filter,
  • a fuel filter,
  • grease,
  • spray lubricant,
  • rubber gloves,
  • heavy work gloves,
  • rags or paper towels,
  • mower blades (if you’re replacing them),
  • fuel stabilizer,
  • and cardboard or newspaper to protect your work surface.

Prepare Mower for Maintenance

orange colored riding lawn mower

Before starting any maintenance on your Husqvarna riding mower, it’s vital to take certain precautions.

Make sure the mower is parked and the blades and moving parts have stopped. The parking brake should be on, and the ignition key should be removed.

Disconnect the battery or unplug the spark plug wires according to the manufacturer’s instructions. It will prevent accidental starts.

Then, inspect the mower and check that all shields and deflectors are in place and undamaged. Replace any worn or damaged parts before proceeding.

Also, look at the tires and ensure they’re properly inflated. Check the brakes are working correctly. Good tire inflation and functioning brakes are essential for safe mower operation.

Finally, clean off the dirt and debris from the mower, especially around the fuel-fill and oil-fill areas. It will prevent contamination of these fluids during maintenance.

Engine Maintenance

Servicing your Husqvarna riding mower’s engine is essential to maintaining its performance and prolonging its lifespan.

Here are the steps to follow when inspecting the engine.

First, make sure the mower is on a hard, flat surface and has been running for about a minute. It warms up the oil, which will drain more easily. Then, disconnect the battery or spark plug wires as per the manufacturer’s instructions.

Next, clean any dirt and debris from the oil drain area. Refer to your specific mower’s instructions for draining used oil from the engine. Be sure to drain it into a designated container for proper disposal.

Replace the old oil filter with a new one and lightly coat the gasket with fresh oil. Tighten the filter until the gasket contacts with the engine, and give it an additional half-turn.

Proper disposal of both used oil and filter is essential. Contact your local recycling center for instructions. Clean up any spills that may have occurred during this process.

Replace either the oil drain cap or close the drain valve if you had one open previously. Then, add the new oil while checking its level periodically. Reconnect the battery or spark plugs according to the manufacturer’s instructions.

Start the mower for a moment and check the oil level again. If necessary, add more oil.

Mower Deck Maintenance

person doing mower deck maintenance

Maintaining your mower deck is critical to achieving the perfect lawn and preventing damage to the deck.

Here’s what you need to know:

Start by removing the blades for cleaning or replacement. Use a plastic putty knife to scrape away any clippings and debris under the deck. It will keep a good airflow and improve mowing performance.

You can also check the drive belts. If you see any signs of wear, such as cracks, it’s important to replace them to avoid breakage or slippage during operation.

When it comes to blades, you have two options: sharpening or replacing them. To sharpen the blades, use a blade removal tool or block them for safety, then turn the deck over.

Insert a wood block between the blade and housing to hold it in place as you remove it. File or grind the blades to sharpen them, maintaining the original angle.

Check the balance of each blade with a balancer or insert a round screwdriver shaft through the mounting hole. Remove material from the heavy edge until balanced.

Finally, install new or newly sharpened blades. Make sure they are positioned with the cutting edge facing down. Securely tighten all nuts/bolts according to the manual’s specified torque.

Safety System Check

A thorough safety system check is an essential step when servicing your Husqvarna riding mower.

Look for signs of damage, wear, or missing parts on all the safety features.

Make sure the seat switch is functioning correctly — it should shut off the engine if you’re not sitting on it.

Check the control levers, too. When released, they should return to the neutral position and engage and disengage smoothly.

The parking brake requires inspection as well. Engage and disengage it a few times to ensure it works properly and securely.

Then, examine the belts and blades for any signs of wear or damage. Replace any cracked or frayed belts and bent or dull blades.

Lastly, look at all the fasteners, such as nuts, bolts, and screws, and make sure they are tightened securely.

Cleaning and Storing

person using lawn mower

Maintaining your Husqvarna riding mower also includes cleaning and storing it properly.

You should give the entire mower a thorough wash at least once a year. You can do it with either a garden hose or pressure washer, but avoid applying too much pressure to sealed bearings.

Afterward, let the mower dry before you store it away.

To keep your mower safe during storage, consider adding a fuel stabilizer to the tank or draining the fuel completely. Doing so will prevent fuel deterioration and any potential engine damage.

Also, make sure the battery is fully charged or taken out of the mower and stored in a cool, dry place.

To protect your mower from potential damage, use a rodent deterrent around the area where you plan to store it. It will prevent damage caused by rodents chewing through wires.


Servicing your Husqvarna riding mower is crucial for its performance and longevity. Fortunately, it isn’t as challenging as it might seem at first glance.

Following the step-by-step guide outlined in this article guarantees that your mower is well-maintained and ready to tackle any lawn care task.

We’ve covered every aspect of servicing your mower, from gathering the necessary tools and supplies to conducting engine maintenance, mower deck maintenance, and safety system checks. All that’s left to do is to get to work.

With regular servicing, your Husqvarna riding mower will continue to provide reliable and efficient performance for years to come.

Frequently Asked Questions

How often should the air filter be cleaned during the mowing season?

During the mowing season, it is recommended to clean the air filter on your Husqvarna riding mower regularly.

It would be best to clean the foam pre-cleaner every 25 operating hours. It helps maintain optimal performance by preventing dirt and debris from clogging the filter.

Can I use any fuel filter for my Husqvarna riding mower?

Yes, you can use any fuel filter that is compatible with your Husqvarna riding mower. Remember to replace the fuel filter annually and make sure it is installed in the direction of fuel flow.

What should I do if I notice a fuel leak in my mower’s fuel system?

If you notice a fuel leak, address it immediately. Turn off the engine, remove any ignition sources, and inspect the fuel line, connections, and filter for damage or loose fittings.

Replace any damaged components and ensure everything is tightened securely before restarting the mower.

How often should I sharpen or replace the mower blades?

To ensure optimal performance and a clean cut, it is recommended to sharpen or replace the mower blades on your Husqvarna riding mower every 25-30 hours of use.

Is it necessary to adjust the mower deck level and pitch?

Yes, it is. Adjusting the deck level prevents scalping or uneven cutting while adjusting the pitch helps with maneuverability and overall performance.

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