If you are aware of which direction the blades on your lawnmower turn, you will be able to use the appropriate discharge bags, sharpen the blades appropriately, and cut the grass in the appropriate pattern. On the other hand, if your mower is equipped with a deck, it can be tricky to determine how they move, and nobody wants to start the engine while it’s inverted, so this presents a problem.

To know which way your lawnmower blade turns:

  • Find out which way the mower discharges
  • Look for the sharp blade edges
  • Check the grass’s direction
  • Unscrew the deck bolt
  • Decide if it’s reel or rotary
  • Remove a riding mower’s deck

The remainder of this article will walk you through each step of the process, showing you how to determine which direction the blades on your lawnmower turn and why that makes a difference in the way you cut the grass. In light of the fact that you will be working with sharp edges that move quickly, we will also give you a few safety pointers.


Check the Discharge Side


The vast majority of lawnmowers, as stated by eHow, have blades that rotate in the clockwise direction (to the left). Having said that, there is no assurance that this will be the case with your mower. If you are aware of which direction the blades turn, you will be able to determine the most effective direction to mow and the direction in which the grass should discharge.

If your lawnmower has a mulch or discharge bag attached to one of the sides, that side is most likely turning in the opposite direction that the blades are moving. If you have a mulch discharge bag on the right backside of your mower, for instance, the blades on your mower will most likely turn to the left.

Certain types of lawnmowers do not come equipped with mulch bags or discharge sides. Even if yours doesn’t, there are still a few different approaches you can take to solve the problem. You might, for instance, look at upgraded versions of lawnmowers that are similar to the one you have to see which way the discharge bag is facing. You can tell that the blade is on the right side of the deck if the improved version has a bag placed on the back-left side of the deck.



Turn the Mower Over and Inspect the Blades

Follow this method to check which way your mower blades go:


Remove the spark plugs from the mower after it has been turned off. Even though it is highly unlikely that you will receive an electric shock, it is still imperative that you take all of the necessary safety precautions. Check the condition of the spark plugs while you’re at it while you’re working on the engine. After removing the spark plugs, you can proceed to the next stage of the process.

Position the mower so that it is facing away from the mulcher or grass disposal device. The weight of the mower has the potential to crush the outlet; therefore, it is imperative that you lay it on the opposite side. The blades should be oriented such that they face outward; this will allow you to clear away any debris and figure out how and where the blades turn.

Locate the side of each blade that is sharpened. When you are cutting the grass, the side of the blade that is sharp should face in the direction opposite of the grass. Additionally, the blade might have a very slight incline to it. This angle allows the blade to glide more easily through the grass, which results in an appearance that is much more even and smooth.



Look Which Way the Grass Lays After Mowing


Although it’s not recommended to mow the grass when it’s wet, doing so might be the quickest way to figure out which direction the blades should be facing. After you mow the grass on a wet lawn, it will lie down completely flat for a few hours. Repeatedly doing this can be harmful to the grass and cause the blades of the lawnmower to become clogged.

In light of the foregoing, one option for getting acquainted with the mower’s blades is to perform a brief cutting session on a small section of the grass. After cutting a straight line that is at least five feet long with the mower, turn it off. To determine the direction in which the grass blades move, you must first face the opposite direction and examine the grass.

It’s possible that you won’t be able to perform this test if the grass is cut too short. Due to the fact that low-cut grass is typically more rigid and long-lasting, the outcomes are dependent on the grass being a little bit taller than usual.


Unscrew the Blade’s Bolt


SFGate recommends looking at the direction of the blade’s deck bolt to determine which way a lawnmower blade turns. In order to prevent the blade from falling off the machine when it is turned on, this bolt secures it in place. As a rule, the bolt will unscrew in the opposite direction that the blades rotate.

Lawnmowers typically have a right-turning blade and a left-unscrewing bolt. As the blades of most lawnmowers rotate clockwise, the bolt is often tightened in the other direction.

Turning the mower off, taking out the spark plugs, and tipping it on its side are all necessary steps in checking the bolt. The nut is located at the exact center of the rotors.

Keep in mind that the hex bolts used in most lawnmower blades require a special tool to remove.


Find Out if It’s a Rotary or Reel Mower


Blades on both reel mowers and rotary mowers can rotate in both the vertical and horizontal planes. Read our reel push mower guide to find out how these mowers compare to the more conventional rotary mower.

Reel mowers, in a nutshell, are lawnmowers that have blades that spin in the opposite direction of the operator. Reel mowers are typically operated manually, but motorized models are also available.

However, rotary mowers have blades that may rotate in either a clockwise or counterclockwise direction. They are driven by gas or electricity rather than a reel like traditional mowers. Few manual rotary mowers survive in today’s market.

You may eliminate half of the directions available to you just by knowing the type of lawnmower you have. In contrast to rotary mowers, reel mowers can only rotate in one direction, and neither clockwise nor counterclockwise.


Remove Your Mower’s Deck


By taking off the deck of your mower, you can see the blades and learn which way they rotate. Although you can examine the blades to determine which is sharper, we advise against operating the mower without a deck. This research can be done with either a riding mower or a manual push mower.

Verify that the deck of your mower is not too rusted or fragile before attempting to remove it. If you try to remove it and damage occurs, you might need a new deck. Wear and tear on the bolt can cause it to strip when you try to remove it, therefore you might want to think about purchasing a replacement bolt.

It’s not a good idea unless absolutely necessary to remove the deck from the mower. Since the aforementioned solutions are applicable to nearly all lawn mowers, removing the deck is typically unnecessary.


Final Thoughts


Though it may seem like a little detail, always remembering which side of the lawn mower is up is crucial. Keeping your lawn healthy and reducing the wear and tear on your mower are both benefits of selecting the correct cutting side.

Installing a new blade on a lawnmower is a simple task that needs to be done often to prolong the life of your mower. Using this manual, you should be able to find the perfect blade for your lawn and learn how to install it properly.

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