How to Change Blades on Riding Mower without Removing Deck

A lawnmower develops problems with time. In some cases, problems could crop up within a day or two of buying and using the machine. Typically, issues with the blade emerge after a sustained period of use; hence, calling for a replacement. In such instances, you have two options.

The first would be to change the blades after removing the deck. Alternatively, you might need to learn how to change blades on riding mower without removing deck. Changing the blades is not an easy task, though. Nevertheless, you can learn how to do it by reading all the tips below.

Can you change blades without removing the deck of your riding mower?

Before delving deeper, it would be great to check if it is possible to learn how to change blades on riding mower without removing deck. The simplest answer is that it is possible to do just that. Normally, most people prefer lifting the mower to change the blades.

However, such an approach is not easy since your mower could be quite heavy. Other times, the difficulty in such an approach could be because you lack the tools needed for the job. Here, you typically need a jack to lift the mower up to a point where you can see the blades. Nevertheless, the biggest lesson to remember here is you can replace blades without removing deck.

How to Change Blades on Riding Mower without Removing Deck: The Step-by-Step Procedure

Now that we know you can replace blades without removing deck, the next lesson is to learn the systematic procedure for doing just that. Before that, it is imperative to remind you that blades need replacing constantly. What you are about to learn below is applicable whether you have one blade or several.

That one blade needs tender loving and care through regular sharpening to provide the quality service that your grass needs. By sharpening blunt blades or replacing damaged ones, you would also be taking excellent care of your plants. Dull or damaged blades are disastrous to plants.

Ascertain the Condition the Blades are in

First, you have to check the blades to ascertain whether they are in a condition worth replacing. Rushing to change the blades before confirming if they need changing is a bit unwise. In some cases, you might be about to change a blade that only needs a bit of a grinder to make it sharper once more. Preferably, you should only contemplate changing blades that are completely worn out and damaged.

Here, you would also need a more-than-basic understanding of different types of mower blades. Essentially, blades have to perform three primary tasks. These are mulching, discharging, and bagging. It is nearly impossible to find a single blade that can do all the three tasks properly. With this understanding, you could determine whether your blades are still up to the task. Replace them if they are no longer doing what you expect them to.

Parking the Mower

Your next task is to park the mower at a safe space. Park the machine on a flat surface. Before alighting, make sure that the mower is switched off completely and leave with the key. Next, put the brake on to prevent the mower from moving while you are busy replacing the blades. Otherwise, you run the risk of having to deal with blades that move while you are doing your best to replace them, which is dangerous and could cause extensive injuries.

Removing the Spark Plug

The next task is to remove the spark plug. Essentially, this is just you taking precaution and ensuring that nothing goes wrong when you actually begin to remove the blades. To do this, you would have to open the hood and remove the black wire lying between the plug and the engine.

Use a Jack to Lift the Mower

Having done all that you should now look for a jack that you must use to lift the riding mower. You would need to choose your jack carefully since some are not strong enough to lift such types of semi-heavy machinery. In case you lack a jack, you have the option of propping up the deck using a few bricks or a cinder block.

Remove the Mounting Nut

Next, look for the mounting nut and remove it once you locate it. The mounting nut is right in the middle of the blade. Turn it anticlockwise. As that happens, you would be loosening the blade too. Remove the nut completely once it is loose enough.

Remove the Blade

At this stage, you have loosened the blade sufficiently to make it easy to remove. Therefore, do not waste more time. Instead, yank it out carefully to avoid causing further damages to the other parts of the mower. Take the necessary precautions to avoid hurting yourself either.

Insert a New Blade

Now that you have done all that, do not leave the scene. Up to this point, your focus has been on removing the blade. The next stage is to replace it with a brand new one. To do this, you only have to slide the new one on to the shaft. Next, turn the mounting nut clockwise to tighten things up. Continue tightening until the new blade is firmly attached to the mower.

Before you remove the damaged one, you should be ready with a few spares. It is highly advisable to keep as many spare blades in the house/store as you can possibly afford. Blades are highly prone to wear and tear. For this reason, running with a single blade for eons would mean working with a blunt one, which could force you to spend more time on the task.

Our Final Word

Now that you know how to change blades on riding mower without removing deck, you no longer have to fret about doing it. Additionally, you have no reason for looking for expert technicians to do this task for you. With COVID-19 disrupting lives and forcing us all to remain indoors for months, you need to sharpen this skill to save money and keep the mower functioning optimally.

Remember to check the condition the blades are in first, park the mower on a flat surface, and loosen the mountain nuts. Afterward, you can remove and replace the blades as you wish. In all that, you should avoid being reckless.

Leave a Comment