The secret to knowing how a lawn mower works lies in the type of lawnmower you have. Nearly every mower follows a different working mechanism to ensure better performance on the lawn.
With the right knowledge, you can be sure to have a good time with your mower and troubleshoot common lawn mower problems you may come across.
Apparently, these are simple machines, but the complex features and more or less working principles of lawn mowers may confuse you.
Whether you’ve used a mower before or not, this article covers all about how a lawnmower works and cuts grass for a beautiful manicure of your lawn.
How Lawn Mowers Cut The Grass?
Although every type of lawn mower follows a different set of operating rules, they all might have a similar type of engine that drives power to cut the yard.
As you start the lawn mower, the engine spins and causes the air to pass through the filter and mix with the right amount of fuel.
However, the spark plug helps ignite the mixture and rotate the flywheel which supplies voltage everywhere and rotates the crankshaft.
As a result of this rotation, the blades do the movement and start to cut the grass. On the other hand, you apply force to the wheels through the handle, which helps in manoeuvring the mower all across the yard.
Common Lawn Mower Features
From handle to brake bail, lawn mowers come with a bevvy of controlled features to help you manoeuvre easily across the yard. With these features, be sure to enjoy a smooth mowing experience without accidental failures or breaks.
From the supportive bail handle to the push-button start, nearly all types of lawn mowers come with more or less the same features.
To give you an idea, here is a list of 8 common lawn mower features you should consider on your hunt for the best lawn mower.
Lawn Mower engine supplies power to the blade that cuts the grass into small and fine pieces. Electric lawn mowers come with a bigger-sized engine while small reels and push mowers don’t have an engine to move the blades.
Also, massive riding mowers have four-cylinder engines whereas gas-powered mowers have two-cylinder engines to power the blades.
Although the engines differ from each other, most of them work through a simple mechanism, making the mower blades turn. When applied to power, the crankshaft rotates the blade and causes a spark in the engine.
As a result, the piston pushes down the engine and rotates the crankshaft which results in powering the mower blades to start the cutting action.
2. Lawnmower Blade
As the most important cutting component of any lawn mower, the blades cut the grass and give a neat look to your lawn. Made up of sturdy metal alloys, these come in different sizes and shapes depending on the needs of your lawn.
For example, simple grass cutters come with a broad and small blade while heavier riding and robot mowers have extra sharp large blades to withstand high-speed contact blades. Moreover, cylinder mowers have cylindrical blades that rotate in a specific direction to cut the grass in a circular motion.
No matter the type of blade, the basic purpose of lawn mower blades is to deliver efficient cutting results. When applied the power, the blade pulls the grass up and sucks the clippings inside the deck.
From there, the grass is chopped into small fine pieces by the blade that further blows out the cut clippings to the ground.
3. Lawn Baskets
Cleaning the mowing mess can be very tiring and time-consuming, but not with lawn baskets. These are spacious baskets designed to store clippings after mowing.
4. Deck Size
Next to the blade, there is a lawn mower deck where the grass is cut into smaller pieces. It’s the place where clippings set before the blades shred them into smaller pieces.
However, lawn mower decks come in different sizes, ranging from 38 inches to 54 inches. Larger decks help in finer and quicker cutting, while smaller decks take more time to cut.
Moreover, decks are adjustable and can increase or decrease the height of the blades depending on how precise cutting you want.
Like any machine, the handlebar helps control the mower and provides support to the mower while mowing. Whether you want to balance the mower or push the mower in the desired direction, the handle helps cover everything to ease your mowing.
Most walk-behind mowers come with handlebars, which means you’ll have to move the mower across the yard.
When the axle turns, you’ll have to press and hold down the lever that will engage the drive system, turning the mower in the desired direction. With the blade control handle, you can prevent the mower from unexpected accidents and brake failures.
Lawn mowers come with both front and rear-drive wheels. As the name suggests, front-drive wheels help the mower move in the front direction while rear-drive wheels control the mower’s movement on the backside.
However, these heels come in different sizes to accompany your mowing accordingly. For example, self-propelled mowers have smaller wheels, while massive riding mowers have larger wheels to mow larger yards even with bumps and obstacles.
Known as the controller of the mower, the role of the throttle is to start the engine and limit the speed of the blade to cut the grass. When applied power, the crankshaft experiences little pressure to open or close the throttle.
However, the role of the throttle is to mix air-fuel in the engine, which regulates fuel consumption and determines the speed of the blade to cut grass accordingly.
With the help of the choke lever, you can also tighten or lose the throttle to make sure it performs well on the mower. For an automatic throttle system, all you have to do is set the throttle at a fixed position for once and forget about it.
How Different Types Of Lawn Mowers Work?
Although simple, rotary lawn mowers have hidden features that might make the overall working principle of lawn mowers a bit complicated.
With efficient motors, rotary lawn mowers have blades that spin fast to cut the grass in a clean manner. Powered by internal combustion engines, most rotary lawn mowers run on two-cycle and four-cycle motors that burn the oil and gasoline at different levels.
With special lubrication systems, they use highly-efficient electric motors attached to the throttle to push the handlebar and adjust the mower’s speed to move forward.
What Is The Best Lawn Size For Rotary Lawn Mowers?
All this combined helps rotary mowers easily mow lawns up to 1 acre or more with the help of a large steel blade that spins, cuts, and cleans the grass. On average, most rotary lawn mowers have blades that spin at a rate of approximately 2000-3000 spins per minute.
After the cutting, all the clippings are mulched back to the lawn and moved to the side or rear mounted bag of the mower.
Whether mulching or bagging, rotary lawn mowers work great at trimming overgrown lawns and cleaning the aftermath mess from mowing.
How Does a Rotary Lawnmower Start?
As the name suggests, most rotary lawnmowers offer walk-behind mower operations with the help of two-cycle and four-cycle motors.
Upon getting power, the engine activates and rotates the rotator tractor cutting blade which then adjusts its length above the ground. As the power continues, the edges of the blades extend their cutting on every swath of grass stuck in the deck.
All the cuttings are then further refined by the mulching action of the lawnmower. The cuttings and other waste are stored in a side or rear-mounted bag attached to the mower.
Riding Lawn Mowers
With efficient motors and high-powered engines, riding mowers are perfect for large lawns with bumps, hilly slopes, and trees. After self-propelled mowers, they offer the finest grass cutting with horsepower ranging from 14 to 16.
However, riding mowers come in different sizes and shapes, lawn tractors being the largest out of all.
Are Riding Mowers And Lawn Tractors Same?
Garden tractors are the best heavy-duty lawn mowers to pull the grass blades and give your lawn much-needed lawn care. Designed for commercial lawn care, such lawn mowers work best for 4-5 acres of lawn.
Compared to zero-turn radius mowers, they use both two-wheel and four-wheels that precisely cuts the grass and maneuvers all across the yard.
How To Mow With Riding Lawn Mowers?
However, driving a riding mower can be a little challenging as you will have to learn the basics to control the pedals for excellent acceleration.
With round-steering wheels, riding mowers use solid engine power to move the wheels and blade that turns the axle, encouraging healthy grass growth.
How Does Riding Lawnmower Work?
Most riding mowers work simply by pushing the power button that controls the handles, connecting to the axle, or moving the blades to cut the desired grass length.
Depending on the features and complexity, most walk-behind lawn mowers cost less than $1000 or less, especially during lawn mower sales. For faster speed, you can adjust the cutting height of the blade for the desired cutting.
Moreover, they have powerful engines that supply power to blades and engines, turning the wheels in any direction you want. All you have to do is climb to the riding lawn mower seat, turn the steering wheel and enjoy the smooth operation of the mower across the yard.
How Does a Riding Lawn Mower Start?
When applied power, the fuel in the mower activates the engine and exerts pressure on the pedals. Next, control the steering wheel so that the mower does not lose its balance and helps you mow smoothly. With steady speed and adjustable cutting heights, you can mow lawns of all sizes and shapes.
Petrol Lawn Mowers
The next transmission type we have is petrol lawn mowers, available in different sizes.
Although similar to self-propelled mowers, this type of mower has many differences that set them apart. With blade brake control, petrol mowers quickly control the speed of the blade in case any obstacle comes in when mowing.
Are Petrol Lawn Mowers Safe?
Most petrol lawn mowers come with kill safety switches that stop the blades during any emergency, while small durable wheels encourage smooth maneuvering.
Whether you have a large garden or a flat yard, petrol lawnmowers can tackle all small to large yards without any hassle.
How To Start A Petrol Lawn Mower?
To start a petrol lawn mower, pull the starting cord and rotate the key that will activate the engine and cut large or overgrown grass.
With high-powered lawnmower batteries, petrol mowers feature efficient cutting systems that cut the grass into cylindrical cutting. However, most petrol mowers come with backup solutions so they run even when the petrol runs out.
They run on normal unleaded fuel as well as come with a cut and collect system to give your lawn a polished finish.
How Does A Petrol Lawn Mower Start?
As a result of this fuel mixture, there is a slight explosion in the engine which drives the piston and rotates the crankshaft resulting in the movement of the blades.
Can I Adjust Cutting Height In My Lawn Mower?
The more you adjust the cutting height, the easier it will be for you to cut the grass. If the petrol lawn mower doesn’t start, make sure to press the petrol knob 3-5 times that will pump the petrol to the engine.
Robo Lawn Mowers
How Does Robot Lawnmower Work?
Known for their automatic mechanism, robot lawn mowers feature rechargeable batteries that recharge on the charging dock after every mowing.
Are Robot Lawn Mowers Good Mulchers?
Although robot mowers are best for cutting thin grass into fine pieces, they basically automate the mowing for the user’s ease. Moreover, robot lawn mowers can also mulch the grass back to the lawn to result in better and healthier growth of grass for the next time
Whether it’s mulching grass, adjusting the blade, or cleaning the mower, Robo lawnmowers do everything by themselves and mow around a specific boundary. However, robot mowers work on a set of predefined rules that the lawnmower operator sets on the lawnmower app .
How Does A Robot Lawn Mower Start?
Robo lawnmowers feature sharp blades that spin at a fast speed to cut the grass at different heights as long as the charge lasts in the mower. The best part is that all robot mowers start the same way with the help of a simple mapping system.
Once you’ve set up the mowing area, the next step is to prepare the mower for mowing by adjusting the basic settings on your phone. After that, press on ”’start” to start the mowing, adjust the cutting height and guide the mower to mow within the boundary wire.
Self-Propelled Lawn Mowers
As the best lightweight lawn mowers, the self-propelled type makes mowing a lot easier with the least effort intake.
With larger wheels and wider frames, such mowers are easy to push across the yard with the help of a bail handle. Moreover, it also lets the user adjust the cutting height and set a suitable speed to mow at ease.
Although they are lighter than other types of mowers, some lawn mower parts may be heavy to replace after every few months.
What Is The Benefit Of Using a Reel Mower?
Push reel mowers are notably the simplest type of lawn mower with efficient cylindrical blades to cut the grass. Designed for small yards, such mowers use high-powered, efficient engines to drive the blades for scissor-cutting action. As a result, the grass grows healthy and nutritious.
What Is The Purpose Of Walk-Behind Mowers?
As the name says, walk-behind mowers run by a manual force to push the mower across the yard. This type of mower is best for small yards and lawns with trees to tackle all the bumps and hills without any damage.
What Are The Benefits Of Cylindrical Mowers?
Known for their scissor-cutting action, cylinder mowers sharply cut the grass into fine pieces, putting less pressure on the blades. As a result, the grass receives a sufficient supply of nutrients and grows healthy yearly.
Here we end our guide about how different types of lawn mowers work. While every lawn mower differs from the others in terms of work principle, the end goal remains the same – to provide healthy lawns.
If you ever face trouble with your lawn mower, find the right culprit with the help of the guidelines mentioned in this article.
Also, proper and weekly lawn maintenance will help you keep the mower in good shape and last a lifetime.
Though a bit complex, the physics explained in this article will help you understand the moving parts of your lawn mower and repair or maintain this machine whenever needed.