How Often To Replace Riding Mower Blades?

by | Last updated on January 24, 2024

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For the average homeowner, a good rule of thumb is to replace your blades

annually

. Sharpening mower blades on a regular basis will prolong the life of your blades. Be sure to take protective measures if you sharpen your blades at home – wear protective gear and disconnect the spark plugs.

When should I replace my riding mower blades?

You'll know that you need to sharpen your lawn mower blades when the tips of your grass are brown and ragged. When this happens, your grass becomes less capable of storing water and more susceptible to disease. Some lawn mower manuals suggest sharpening or replacing blades

after every 25 hours of use

.

How often should I sharpen my mower blades?

In general, sharpen

twice per season

or after 25 hours of use to keep your blades in good shape. Also, sharpen the blades after hitting rocks. Stone can easily dent or nick the blades. The lawn itself can also hint when you need to sharpen your mower blades.

Should you sharpen new mower blades?


No, it's not necessary to sharpen brand new lawn mower blades

. You can simply remove your new blade from its packaging, remove the old blade carefully from your mower, and then attach the new one.

How do I know if my mower blade is dull?


A dull blade can make your lawn appear yellow, brown and raggedy

. A dull lawnmower blade may even pull up portions of the grass because it actually pulls on the entire plant instead of slicing through the blades of grass cleanly.

How much does it cost to sharpen mower blades?

Depending on the type of your mower, you can expect to pay anywhere between

20 dollars to 60 dollars

. If it's a reel lawn mower you might not even need to take the blades off the mower and sharpen them while they're attached.

How can I make my lawn mower blade last longer?

How often should lawn mower spark plugs be changed?

In general, you should change your lawnmower's spark plugs

at the start of every season or after 25 hours of use

– whichever comes first. There is also a strong chance that they may be the culprit if your mower won't start.

Do you really need mulching blades?


Mulching blades are an excellent choice for use on lawns that receive a mowing every three to four days

. Using mulching blades on overgrown grass can result in clogging under the deck and piles of grass on the cut lawn. Mulching is also an environmentally friendly way to deal with grass clippings.

Can a mower blade be too sharp?

In fact,

an edge that is that sharp has the tendency to roll over, which can cause blades to get nicked and chipped

. Additionally, lawn mower blades that are too sharp get duller, faster resulting in the need to sharpen more frequently and a shorter blade life.

Should mower blades be razor sharp?


Mower blades should be sharp, but they do not need to be as sharp as a razor blade

. When you touch the blade, you should not cut your hand. That way, they will cut the grass seamlessly and have a clean but. Very sharp blades will get dull quickly and need to be sharpened much more often, shortening the blade life.

How do you sharpen riding lawn mower blades without removing them?

  1. Collect the required tools.
  2. Seal the gas tank. …
  3. Tilt the mower and place the wooden block under it on the other side to give it support. …
  4. Clean the blade with water and a steel brush.
  5. Use the angle grinder or flat-file to sharpen the cutting edge slowly.
  6. Lower the mower.

How do you sharpen new lawn mower blades?

How sharp should mower deck blades be?

Lawn enthusiasts have their own preferences for their mower blades. But, home and garden experts agree that for most people, the blades in your mower should be

about as sharp as a butter knife

, and an angle of about 30 degrees. You should be able to touch the edge without getting cut.

How do you sharpen a lawnmower blade by hand?

What angle should lawn mower blades be sharpened at?

Lawn mower blades come from the factory with a specific angle on the angled edge. This angle should be kept as you grind your blades over time. The most common lawn mower blade angle is

30-35 degrees

. When sharpening your mower blades it is important to keep this 30-35 degree angle over time.

Does Ace Hardware sharpen mower blades?


We sharpen a wide range of edges, from lawn mower blades to paper scissors

, we're here to make your cutting experience safe and easy.

Do you sharpen both sides of a 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.

Can you sharpen mower blades with a grinder?

There are several good ways to sharpen lawn mower blades, but

one of the quickest and easiest methods is with an angle grinder

, an inexpensive, versatile hand-held power tool.

Can you harden mower blades?


Yes, lawnmower blades are tempered

. Tempering is used to make the blade durable, stronger, and tougher. However, the temperature of doing so often depends on the type of metal. Steel is the preferred metallic material for making lawnmower blades.

Do mower blades need to be timed?


Timing is usually required when blades overlap

so it would first require an extended deck running more than two blades in sequence. This is normally found on lawn tractors and zero turns. Your average domestic lawnmower is not going to have overlapping blades.

Can a dirty air filter cause a lawn mower not to start?

Dirty or Clogged Air Filter

Before the incoming air enters the carburetor, it passes through an air filter to remove dust and dirt. When the filter is doing its job,

it may get clogged up with debris removed from the air and not allow a sufficient amount of air into the carburetor and prevent the engine from starting

.

How often do you change the oil in a lawn mower?

When to Change Oil In Your Mower

For existing riding , it is recommended to change and replace the oil

at least once a season, or for every 100 hours of run time

.

How do I know if my lawnmower spark plug is bad?

Checking Small Engine Spark Plugs


If you haven't turned on your engine recently, your mower won't start and/or you have to tug repeatedly on the rewind to start the engine

, a damaged spark plug may be the culprit. These problems may also cause excessive fuel consumption, deposits on the cylinder head and oil dilution.

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.