How to install a lawn mower tire


How to replace a riding lawn mower front tire

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Repair help > Front-Engine Lawn Tractor repair > Front-Engine Lawn Tractor repair guides

January 1, 2015

By Lyle Weischwill

This step-by-step repair guide explains how to change a front tire on a riding lawn mower if the old tire is damaged beyond repair. Replacing the front tire is fairly easy; you just need a few tools and a manufacturer-approved riding mower part.

Follow the steps in this repair guide and video to replace the front tire on Craftsman, Husqvarna, Toro, Troybilt, Ariens, Poulan, MTD, Murray, Snapper, Yard-Man, John Deere and Weed Eater riding mowers and lawn tractors.

If you'd rather use tire sealant to repair the tire, the video How to Repair a Riding Lawn Mower Tire shows how.

Quick links

Tools required

Floor jack or bottle jack

Jack stand

Slot screwdrivers

Pry bars

Pliers

Valve stem core removal tool

Liquid detergent

Water

Wood blocks

Work gloves

Safety goggles

Compressor air supply

Repair difficulty

Time required

60 minutes or less

Repair difficulty

Time required

60 minutes or less

Replacing a front tire on a riding lawn mower

This video explains how to replace the front tire on a riding lawn mower.

Instructions

  1. 01.

    Disconnect the spark plug

    Park the riding mower on a level surface and set the parking brake.

    Turn the ignition switch off and remove the key.

    Wear work gloves to protect your hands and safety goggles to protect your eyes.

    Lift the riding lawn mower hood and disconnect the spark plug wire.

    Lower the tractor hood.

    Tip: Disconnect both spark plug wires if your engine has 2 cylinders.

    PHOTO: Disconnect the spark plug.

  2. 02.

    Jack up the riding mower

    Block the rear tires to keep the riding mower from rolling.

    Position the jack under the frame and jack up the riding mower to raise the front wheel.

    Place a jack stand under the frame to support the riding mower.

    Remove the jack.

    PHOTO: Block the rear wheel.

  3. 03.

    Remove the front wheel

    Pull off the axle cover.

    Remove the retaining ring and then pull off the washers.

    Pull the tire off the axle.

    PHOTO: Remove the front wheel.

  4. 04.

    Remove the tire

    Remove the valve stem cap.

    Remove the valve stem core, which lets any remaining air out of the tire.

    Break the tire bead and pry the tire off the wheel rim on one side.

    Pry the tire off the rim on the other side.

    PHOTO: Pry the tire off the rim.

  5. 05.

    Install the new tire

    Clean the wheel rim.

    Set the new tire flat on a work surface.

    Lubricate the top tire bead with liquid detergent.

    Pry the rim into the top side of the tire.

    Flip the rim and tire over.

    Lubricate the tire bead with liquid detergent.

    Pry the remaining side of the tire onto the rim.

    Warning: Use blunt tools to pry the tire to avoid damaging the new tire bead.

    PHOTO: Lubricate the bead.

  6. 06.

    Seal the bead

    Fill the tire with air to seat the tire bead.

    Reinstall the valve stem core.

    Fill the tire fully with air.

    Tip: If the tire didn't fill with air, install a ratcheting tension strap around the center of the tire tread, tighten the strap to force the beads outward, and fill the tire with air to seat the tire bead. Carefully release and then remove the strap.

    Tip: If the bead doesn’t seal, check the rim and replace it if you find damage.

    PHOTO: Shoot air into the tire.

  7. 07.

    Reinstall the wheel

    Slide the wheel on the axle.

    Reinstall the washers and snap the retaining ring onto the axle.

    Push the axle cover onto the wheel.

    PHOTO: Reinstall the wheel.

  8. 08.

    Lower the riding mower

    Push the jack under the frame and raise the riding mower, and then pull out the jack stand.

    Lower the riding mower to the ground.

    Remove the wood blocks from the rear tires.

  9. 09.

    Reconnect the spark plug

    Raise the tractor hood.

    Reconnect the spark plug wire and lower the hood.

    Tip: Reconnect both spark plug wires if your engine has 2 cylinders.

Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

Symptoms common to all riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim

Read more

Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor

Read more

Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment

Read more

Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged mandrel pulleys

Read more

Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components

Read more

Why is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, broken fuel line

Read more

Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a tune up

Read more

How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator

Read more

Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up

Read more

Repair guides common to all riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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Repair difficulty

Time required

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If a blade on your mower is dull or bent, replace it following the steps in this repair guide.

Repair difficulty

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Repair difficulty

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Articles and videos common to all riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

August 6, 2020

How to remove a lawn mower blade using a removal tool

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Learn how a blade removal tool makes replacing the blade easier and safer

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Keep these 6 things on hand to keep the mower season running smoothly.

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Charging a battery in a riding lawn mower video

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Lawn Mower Tire Changer Tools | Home Guides

By Amelia Allonsy

Lawn mowers might require a tire change as a result of an unexpected flat tire or from regular wear. After years of frequent use, the tires treads wear down and become smooth, resulting in loss of grip and traction. Sunlight's ultraviolet rays, weather and general use can weaken tire rubber, resulting in dry rot and tire sidewall cracking. Tire replacement requires basic tools you likely already have on hand.

Lifting the Lawn Mower

  1. Lifting the lawn mower is the first vital step in changing a tire on a riding lawn mower. Floor jacks are designed to lift the lawn mower by forcing hydraulic fluid into a lifting ram. Block the rear tires in the front and rear of the tire with wooden blocks or bricks. The floor jack is centered under the front or rear axle while you pump the jack handle to lift the mower. Jack stands are designed to support the weight of the lawn mower safely to prevent jack failure when removing the tires. Place the jack stands under the front or rear axle, one on each side of the axle as close to the tire as possible.

Front Tire Removal

  1. Front tires and rims are generally held onto the axle by a C-clip on newer models or a cotter pin on older model lawn mowers. A flat screwdriver is needed to remove C-clips from the front axle. Insert the screwdriver head between the C-clip and axle shaft and pry back gently to remove it from the axle. Remove cotter pins from the axle shaft with needle-nosed pliers. Bend the ends of the cotter pin straight and pull the cotter pin free from the axle shaft. After removing the C-clip or cotter pin, you can slide the flat washer from the axle shaft and slide the tire and rim off the axle shaft by hand.

Rear Tire Removal

  1. Riding mower rear tires are held in place with bolts, C-clips or cotter pins. Loosen and remove bolts with a socket wrench. After removing the bolts, you can slide the rear tire and rim from the rear axle. Use a flat-head screwdriver inserted between the clip and axle shaft to pry off the C-clip. Straighten cotter pins with needle-nosed pliers so you can slide the tire off the axle. Remove and repair one tire at a time to prevent damage to the lawn mower in case it may shift or fall. Use the same tools to install a tire back onto the axle, but proceed in reverse order.

Tire from Rim Removal

  1. Sometimes simply pushing down on a flattened tire is enough to break the bead seal that secures the tire to the rim. When this isn't enough, you can use two tire spoons, also called tire irons, to break the seal and remove the tires from the rims. Wedge a tire spoon between the tire and rim and hit the tire spoon with a hammer to break the seal. Pry backward on the tire spoon to create a gap between the tire and rim. The first tire spoon stays in place while you repeat the process with a second spoon opposite on the tire. Work the spoon around the circumference of the tire and rim to complete the removal process. Repeat this process in reverse to install a new tire to the rim.

References

  • Deere: John Deere Tractors Operator's Manual
  • Murray: Murray Select Owner's Manual
  • Gempler's: How to Use Tubeless Mount & Dismount Tire Irons

Writer Bio

A former cake decorator and competitive horticulturist, Amelia Allonsy is most at home in the kitchen or with her hands in the dirt. She received her Bachelor's degree from West Virginia University. Her work has been published in the San Francisco Chronicle and on other websites.

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