Moving Direction of Crank Shaft
Check the mower’s shaft’s direction of rotation. The portion of the crank shaft where your blade is mounted
The best way to check is to turn off your mower and partially pull the “Starter Pull Cord” to observe the shaft’s movement, which is primarily clockwise, and the cutting edge should be in that direction.
Additionally, you can observe the rotation of the discharge chute on your mower’s right side of the deck. If it rotates clockwise, the shaft and blade will do the same.
Check By Wobble Test
When mounting a blade on a lawnmower, the wobble test is used to determine whether it is securely fastened. If it is loose or shaking instead of being firmly fastened, the blade fitting is incorrect, and the incorrect side has been used.
In that situation, reversing the side will resolve to perform the proper installation.
To test the fitting, you can shake the blade and do a wobble test. To ensure proper fitting of the mulching blades, it is advised to use reducing washers and the appropriate bolts.
Get an Idea From the Old Blade
Making a video or taking photos while removing your old blade is preferable. This will help you comprehend the proper mounting procedure step-by-step.
Which Way Does a Mulching Blade Go On? Check By Different Methods
You can use the following techniques to determine the mulching blade’s right side and how it should fit.
Check Manual
Reading a manual is the best way to learn because it contains clear instructions on how to mount or replace a mulching lawnmower blade.
Cutting Edge
Another way to guarantee a quality mulching blade installation is to cut the edges.
To make sure the edge is the cutting one, place your thumb against it; it should be facing the ground as this ensures effective grass cutting.
Additionally, the cutting edge may be shiny or dull, giving the impression that the sharp part of the metal is to the ground after you install your lawnmower blade.