How To Repair Your Lawn Mower from Shaking & Vibrating

Your lawn mower seems to shake excessively while you’re mowing the lawn. I have found it to be less problematic than you might think from my experience. It is possible for your lawn mower to vibrate due to a variety of factors.

The problem should be fixed as soon as possible if your lawn mower is vibrating badly.

Look for loose parts in the engine housing. Once it has cooled, grab it by the handle and shake it to make sure it does not break. A ratchet should be used to tighten down the housing. The nuts should be tightened by turning them clockwise around the housing.

Turn the mower over, keeping the gas and oil crankcase under the carburetor to prevent leaks, and remove the spark plug from the engine. After you have removed the spark plug, turn the mower over.

We will discuss the main causes of your lawn mower vibrating in this article and how to determine if and how it could be a problem. There are many ways to solve most of these problems without contacting a professional (so long as you follow some basic safety precautions along the way).

10 Steps to Check Your Lawn Mower from Shaking & Vibrating

1. Is it necessary for me to take any safety precautions?

Make sure you take all necessary precautions before putting your hands in the path of sharp metal spinning at over 200 miles per hour. We will begin by disconnecting the spark plug as the first step in the process. In order to achieve this, you will need to remove the boots from the spark plug and turn them around so that the connection is not accidentally made between the spark plug and the plug wire.

The blades should be handled with care as they will be sharp. Make sure your fingertips are not too far apart from the grass they are designed to cut, so be sure to take care when handling them. In order to further prevent any accidents from happening, you should refer to the mower’s owner’s manual and follow any safety precautions recommended by the manufacturer.

2. If you have an unbalanced blade, you should check it out

Check your mower blades to see if they need to be replaced. It is possible for vibrations to be caused by unbalanced blades. Whenever a blade is worn more on one side than the other, it can become unbalanced and become unusable. The result of uneven wear from sand or incorrectly sharpening the blade could lead to it wearing out unevenly.

Here are a few tips on how to inspect and sharpen your blades so that they will last longer.

Make sure you use the correct length blade and the correct size hole for the center of your blade if you have recently replaced your blades. Balancing the blades is a very important step when installing them.

There are a number of ways in which you can check your blades before installation. When you hang them on a nail or use a blade balancer, you can ensure the blade doesn’t lean toward one side or the other.

3. There is crankshaft damage on the vehicle

A petrol engine’s crankshaft and blade are attached to the crankshaft. You may have damaged your crankshaft if you’ve hit something while mowing.

It is possible for your mower to vibrate if the crankshaft is damaged or bent. An engine that has a bent crankshaft must be removed from the engine and replaced with a new crankshaft in order to be repaired.

4. Is there a reason why blades bend or become loose?

Blades that are bent, out of balance, or loose are three common causes of a vibrating mower. There are several reasons why this might happen, but one of them is if the blades hit a stump, rock, or root while they are spinning. There may be bent or loose blades in the mowing machine if there is vibration coupled with uneven cutting. This can happen if there are strange sounds like grinding and rattling.

When a blade is nicked, the bolt holding it in place becomes loose or the blade itself suffers damage, it can become out of balance. During mowing, you will hear vibrations and noise. Improperly sharpened blades can also cause blades to be out of balance.

5. Mounting bolts should be tight and secure

It is important to check the tightness of the engine mounting bolts, also referred to as motor mounts, before mounting the engine. The bolts need to be replaced if they are worn out, missing, or broken.

The purpose of these bolts is to reduce vibrations caused by the running of the engine. In case of vibrations when you engage your blades, check the engine bolts.

6. In the event that my pulley is not working, what do I look for?

Vibrations in mowers are also caused by pullies. Your mower’s pullies can get clogged up or obstructed from time to time and become inoperable. The most common way to solve this problem is by removing all the grass that is blocking the drain, dead bugs, or other things that have become lodged inside.

The last thing you should check if any of the other possible causes of your lawn mower vibrating and not cutting your lawn properly have been mentioned in this article is this last known issue.

7. The spindle housing should be checked for bad bearings

Smaller units sometimes have quill assemblies that are used to contain bearings in the spindle housing. You can test a bearing’s condition by rocking it up and down, and wearing a good pair of work gloves to protect your hands from sharp blades.

Bearings need to be replaced if they move. If your lawn mower deck allows it, replacing the entire cutter housing assembly may be easier than changing only the bearings.

8. Does my lawn mower need to be fixed by a professional?

In the event that your mower’s blades are bent, replacing them will likely be the best course of action. The majority of the time, you can’t bend them back into place with your naked eye (I lost an entire afternoon trying). During the process of removing the part, there is a possibility that some other parts have also been damaged.

The inner workings of lawn equipment may need to be inspected by a professional if you don’t have experience servicing them. In order to ensure safety, they will check everything out. Equipment with a damaged or faulty part should never be operated. In order to do the math, I need all my fingers and toes. If one of them were to be lost, I would lose my ability to do so.

9. The flywheel on my vehicle seems to be faulty. Is this normal?

There is a piece of hardware attached to the flywheel that is known as the flywheel key. Originally, a flywheel key was manufactured in order to make sure that the flywheel would not take most of the damage before the key would shear off. The vibration of your lawn mower can be caused by a damaged flywheel key.

There is a possibility of a visual inspection of the flywheel for damage, and if any damage is detected, it can be replaced. You should inspect the flywheel as well as the flywheel key to make sure that they are not damaged in any way.

10. Make sure the mower does not have any debris lodged inside

The wood chip wedge found in the pulley of my buddy’s machine was the result of my finding a wood chip wedge. The belts would get vibrated every time the belt passed over it, which in turn rattled the whole deck of the mower every time the belt passed over it. The grass can get stuck in the mower if it picks up stones, wood chips, or tree debris that falls from the trees.

It is therefore extremely crucial that you consider all options and details when it comes to trying to determine what the cause might be of the vibration of your Lawn Mower from Shaking & Vibrating.

There is no point in ignoring a recommendation, no matter how small or weird it may seem. If you look around, you may be surprised to find what you are looking for. Vibrations in your lawn mower can be caused by the strangest of things.