QA

Question: How To Change Lawn Mower Blade

Which way do you turn the bolt to remove a lawn mower blade?

To remove the blade, you must turn the blade’s retaining bolt to the left, or counterclockwise. Before undoing the blade, tip the mower on its side with the engine air cleaner facing up and block the blade with a piece of wood so it can’t turn.

Is it hard to change a lawn mower blade?

Blades wear out with use and need to be changed occasionally to make your mower more efficient. You’ll keep your lawn healthier and you’ll need to mow less frequently with sharp, clean blades. Replacing them is an easy project that won’t take up much time, as long as you approach it correctly.

What size wrench Do I need to remove a lawn mower blade?

Dismount the mower deck from the lawn tractor to replace worn-out mower blades. Changing the mower deck’s three blades requires a 1 1/8-inch socket, box or open-end wrench for hex nuts, a block of wood and a set of new blades.

How do you loosen a lawn mower blade nut?

Put a wrench socket of the correct size on the head of the bolt securing the blade to the blade holder, and apply force to the wrench handle in the counterclockwise direction to loosen the blade bolt. The bolt may have a 1/2-inch, 5/8-inch or 3/4-inch head, depending on mower model.

Which way does lawn mower blade face?

It’s important that the blade’s cutting edge follows the direction of rotation. The wings of the lawn mower blade will be oriented up toward the mower deck and any writing on the blade will likely be facing away from the deck. If the blade bolt comes with a washer, its concave side will be facing the blade.

How often should you replace lawn mower blades?

A good rule of thumb for the average homeowner is to replace your mower blades annually. You may also think about replacing them if they become damaged. Dig up that product manual if you want a more clear-cut answer. Always make sure to take protective measures whenever sharpening your mower blades at home.

How much does a lawn mower blade cost?

Zero-turn lawn mower blades cost between $12 and $31, depending on the type and brand. Riding lawn mower blades cost between $10 and $40.

Can you change mower blades without removing deck?

By all means no. And fortunately, it is possible to change mower blades without taking out the dock. You see, the blades are found at the bottom part of the mower. So, if you have a jack or a tool that can lift the riding mower just enough to expose the blade.

What size is the nut on a lawn mower blade?

What size are the tractor cutting blade retainer nuts and what direction should they be turned? The retainer nut on most of our riding mower blades are a 5/8″ thread diameter. This sized thread diameter nut normally requires a 15/16″ wrench or socket tool in order to remove/install.

What size bolt holds a lawn mower blade on?

3/8″ x 1-1/2″ Lawn Mower Blade Bolt.

What is the torque on a lawn mower blade?

Walk behind mower blades should be installed between 38 and 50 foot pounds of torque. Riding mower blades should be installed between 70 and 90 foot pounds of torque.

Are mower blade nuts reverse thread?

Most lawnmower blade nuts are reverse-threaded in order to secure the blade on the drive shaft of the engine. This ensures that the blade’s rotation does not loosen the nut. However, not all blades use a reverse-threaded nut to secure them to the engine’s drive shaft.

How do you remove a stuck lawn mower blade?

Remove a Stuck Blade with Leverage Once it’s secure, place a socket wrench over the bolt, (making sure it is the correct size), and attach the breaker bar to the socket. Use the breaker bar as the socket wrench handle and loosen the bolt. Once it is loose, unthread the bolt by hand and remove the blade.

What happens if you put your lawn mower blades on upside down?

Mower blades have a cutting edge at each end. The key to replacing the mower blade is installing the new one properly. It is common to install a blade upside down. When this happens, the lawn mower will not cut correctly, or it could damage the mower.

Which side of mower blade faces down?

To determine which side of your lawn mower blade is up, first figure out which side is the sharp cutting edge, and which side is the blunt edge. Look for a sticker indicating which side goes up and which side faces downward. The cutting edge should face the grass while the dull edge should face the deck of the mower.

Which side of mulching blade goes up?

The metal flaps or teeth-edges or bevel should be up, and cutting edges should face the ground when you put a mulching blade on.

Why does my mower cut better when I pull it backwards?

Push Mowers A push model that mows grass better when pulled in reverse than pushed forward may need to be sharpened. The forward motion of the wheels is what turns the interlocking blades and, when operated in reverse, the blades turn in reverse. Have your mower professionally sharpened to ensure the issue is resolved.

Do you sharpen both sides of a lawn mower blade?

Always sharpen from the top side of the cutting edge; this will give you the longest-lasting edge on the blade. Note: The file cuts in one direction only, on the push stroke; you’ll feel it bite into the steel on the blade.