Hey, a Lawnmower is really a blessing to maintain a neat lawn. But while cutting tall or thick grass your mower blades slow down.
We have done deep research that why mower blades slow down in tall grass. Let’s share our findings.
For the riding mower, a loose drive belt usually slows the mower while cutting tall grass. Too long or too wet grass also slows down the mower. Accumulation of grass in the mower deck also reduces mower speed.
STRUCTURE OF MOWER
To find the detailed reasons why mower blades slow down in tall grass, first we have a look at the structure of the lawn mower.
Then we will briefly discuss the lawn mower mechanism. This will help us to optimize the blade performance.
Basically, lawn mowers are of three types.
- Walk-behind mowers
- Riding mower
- Robotic mowers
Rotary mowers consist of a motor, throttle, deck, and blade.
Blade lies horizontally a few inches above the ground.
The blade is attached through a vertical axle to the motor. When the motor turns the axle, the blade spins.
It spins at the speed of 3000 revolutions per minute and cuts the grass.
For the large scale, mowing riding mowers or small tractors are the best solutions.
Riding mowers are like ordinary motor vehicles. The operator sits on the mower deck and controls the steering through peddles or levers.
In the riding mowers, the blade is not directly attached to the axle. Instead, it is attached to a belt. This belt turns the blade.
A powerful engine drives wheels and blades.
These mowers do not need an operator. They are controlled by robots.
REASONS WHY MOWER BLADES SLOW DOWN IN TALL GRASS
- In most cases, the reason behind slowing down the blade is a loose or damaged belt.
- Too long or too wet grass also slows down the blade.
- If the mower deck is filled with grass and debris, it will slow down the blade.
- A dull or damaged blade also cuts the grass slowly. A dull blade also causes grass ripping that invite a lot of diseases.
HOW TO AVOID SLOWING DOWN MOWER BLADE
First of all check blade is properly sharpened and in good condition.
If the blade is damaged replace it.
If the blade is not sharpened, get it sharpened.
The blade is ok but still working slowly then check the belt whether it is damaged or dislocated.
The belt is usually present in the motor casing. Firstly turn off the mower. Then check the belt.
If the belt is dislocated, reattach it properly.
If it is damaged replace it with the new one.
Too wet grass also slows down the mower blade and accumulates grass in the deck.
To avoid this always mow in dry conditions.
Too long grass also slows down the mower.
To fix this increase the cutting height of the mower. Once grass length is decreased on first mowing then mow again at a lower height to get desired grass size.
If the mower deck is filled with grass and debris it will slow down the blade and even block it.
To fix this issue clean the deck before starting mowing. While mowing a large area, clean the deck at regular intervals to avoid clogging the deck.
The last tip is that while mowing tall grass, mow slowly so that mower works easily.