Changing lawn mower belts. A Cut Above

How to Replace the Drive Belt on a Husqvarna Zero Turn Mower

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One of the major components on your mower, which requires frequent checks and maintenance, is your drive belt. If you ensure that you pay proper attention and care to this, it will guarantee the long term durability of your mower. It would also improve how efficient your mower’s overall performance is. And we say this from numerous personal experiences.

Changing the drive belt may sound difficult. You get easily dissuaded. Reading manuals sometimes feel like reading a lengthy “Terms and Conditions” page, but it is necessary, to say the least.

And if you’re like me with an appetite to get things done, by yourself, or merely under necessity with no other options, then this straightforward, concise how-to guide on replacing and maintaining the drive belt on your zero turn mower is just for you.

Replacing Your Husqvarna Zero Turn Mower Drive Belt: Step by Step Guide

Step 1: Set Parking Brakes

To remove your drive belt; first, you must not only ensure that your parking brake is on, but also that your mower itself is parked on a leveled surface with no inclination that may cause sudden movements.

Step 2: Bolts

The next step is to remove the bolts from the belt shield, which is the casing in which the driving belt is enclosed. Removing the bolts should ensure the casing comes off easily.

Step 3: Belt Configuration

Once the casing comes off, you should see the drive belt and, most importantly, mentally note how it is routed and configured so that you may have a perfect guide once it’s time to replace it.

You may also go a step further from a mental picture by taking an actual picture for better reference.

Step 4: Removing the Belt

To remove the belt, you must first move the idler arm to ensure looseness and then go ahead and remove the belt by gently pushing it over the top of the housing pulleys.

Step 5: Replacing the Belt – Wrapping the Pulleys

Once you’re done with the cleaning, maintenance, or total replacement of the belt, proceed to open the engine shaft again and then wrap the deck belt around the clutch pulley just as it was your earlier and in your picture.

Step 6: Idler Arms

Push in on the idler arm that was moved earlier (to ensure looseness) and once you’re done routing the belt, release the idler arm to its natural position to ensure fastening.

Step 7: Final Check

Confirm to see if your final routing configuration is the same as it was earlier in your picture. Make sure there aren’t any knots or hard twists on the belt.

Step 8: Replace Encasing

Carefully replace the encasement removed earlier on the belt housing and make sure the major bolt spaces fall on the right surfaces.

Step 9: Replace Bolts

Replace and fasten the bolts on the drive shield casing.

And You’re Done. Check out this video below for a more in-depth how-to.

Maintaining the Belts on Your Exmark Mower

Belt replacement is a topic we consistently get questions about here at Exmark. Today, we’ll talk about how to maximize belt life, how to know when belt replacement is necessary and where to go to learn how to replace belts on your Exmark machine when the time comes.

Rule #1 – Keep Belts Tight

Your Exmark Owner’s Manual is a great resource for information about belt inspection, adjustment and replacement.

Proper tension is a critical factor in the durability of deck drive belts. Loose belts can slip or spin on the pulleys, reducing their lifespan considerably. Most belts on current Exmark machines are self-tensioning, but older machines have belts with spring-loaded tensioners that keep consistent tension during operation, but require periodic user adjustment. Your owner’s manual or local Exmark dealer can help you know which belts are self-adjusting and which you’ll need to periodically check and re-tension. It’s especially important to stay on-top of tension following belt replacement. In the initial hours of use after a belt is replaced, it “fits-in” to the pulleys. During this time, regular adjustments likely will be necessary to keep it properly tensioned. We recommend checking new belts three times within the first 24 hours of use, adjusting whenever the tension drops below the specification for your machine. Doing so will help to ensure the long life of the belts and pulleys.

Checking belt tension

You can check belt tension by using a fish scale and a ruler. Use the fish scale to apply pressure to the belt while you measure belt deflection with the ruler. On some belts, we recommend 1/2-inch of deflection at 10 pounds of pressure. That means it would take a force of 10 pounds to move the belt 1/2 inch. Your machine’s owners manual or your local Exmark dealer are great resources for the specific tension specifications for your machine.

When to replace belts

Preserve the performance, reliability and long-term value of your Exmark machine with Original Exmark Parts belts.

Insist on Original Exmark Parts

Belts are a critical element to the performance of the cutting and drive systems, so insist on Original Exmark Parts. They are the only ones designed specifically for your machine, so you can be confident they’ll deliver the durability, performance and long-term value you expect. Learn more about the value of Original Exmark Parts belts at Exmark.com.

Don’t let worn or under-tensioned belts compromise the performance and reliability of your Exmark machine. A little time spent on preventative maintenance now can eliminate a lot of headaches for you and your crews later on.

Other service resources at Exmark.com:

• Exmark Service Tips(includes link to owner’s manual search)
• Exmark Maintenance Schedules(2014 and newer models)
• Exmark Quick Reference Parts
• Blade Drive Belts — Common Problems and Solutions — LawnEQ.com Blog

This entry was posted on Thursday, October 8th, 2015 at 11:59 pm and is filed under Education, Exmark Information, General, Maintenance Tips, Products. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

How to Adjust Belt Tension on Riding Lawn Mower: 7 Steps!

How to adjust belt tension on riding lawn mower will be one of the best skills you will ever learn. You will simply need a wrench!

A lawn mower can lose its belt tension. and you wouldn’t want that to happen when you need it the most. This article will guide you, step-by-step, on how to adjust the drive belt of your mower.

• How to Adjust the Belt Tension for Your Lawn Mower

• 1. Check the Condition of the Belt of Your Riding Lawn Mower
• 2. Look for the Spring and Bracket of Your Lawn Mower
• 3. Loosen Your Mower’s Bracket Screws
• 4. Pull the Bracket Away From the Spring
• 5. Tighten Your Mower’s Bracket Screws
• 6. Engage the Blades of Your Mower
• 7. Test Your Lawn Mower

• – Worn Belt
• – Damaged Belt
• – Stretched Out Belt
• – Wrong Belt Used
• – Bent Belt-keepers
• – Split Plates or Brackets Below Pulleys
• – Debris Buildup
• – Safety Tips and Tricks

• – Can You Just Simply Replace the Belt on Your Mower?
• – What Should be the Length of the Belt for my Mower?

How to Adjust the Belt Tension for Your Lawn Mower

To adjust belt tension for your lawn mower, you will just need one thing:

an adjustable wrench. In the case that you only have fixed-size wrenches, look for one that can be used on the screws of your garden mower.

Check the Condition of the Belt of Your Riding Lawn Mower

Before you tighten the belt tension of your lawn mower, you have to make sure first that the mower drive belt is in good condition. If your mower deck belt is damaged, then you’d be better off replacing it.

Even if you adjust the belt tension of a damaged belt, it could still end up breaking. Worse, it can come off the pulleys due to damage, leaving you with a useless lawn mower.

Start the inspection by placing your lawn mower on a level surface. Turn off the lawn mower to prevent accidents.

Next, you’ll need to lower the mower deck down to its lowest settings. This will help you get a good view of both the belt and the pulleys.

Now, place your hands on the visible sections of the lawn mower belt. Run your hands along them so that you can look and feel for any damages.

If you see any damage, replace the deck belt immediately. If you don’t see any damage except for a loose mower deck belt, then proceed to the next step.

Look for the Spring and Bracket of Your Lawn Mower

Most lawn mower models have decks that display a swing arm, the belt, and several pulleys from the top. A tension spring should also be visible. This tension spring is attached to the swing arm and to a bracket.

You’ll need to double-check for damages. These are what you need to look out for:

• Damages in the belt can come in the form of cracks, frays, and obvious signs of wear and tear. Worn belts slip off easily, even if they are frequently adjusted.
• Swing arms should rotate freely. When they don’t you should apply some lubricating oil at the pivot and clean the parts of any debris that prevent rotation.
• Springs should be ideally stretched. If it’s loose, then you need to tighten them.

Engage the blades of your lawn mower by employing the lever next to the steering wheel. Once engaged, push down on the spring and then grab hold of your mower’s belt. Even with the blades engaged, the belt should feel loose.

Loosen Your Mower’s Bracket Screws

Disengage the blades first before you do anything. This will make everything looser. The lack of tension will make any adjustments easier to do.

After the blades have been disengaged, you can begin adjusting the tension of the mower deck belt of your lawn mower. To do this, move the bracket backward to which the spring is attached. Doing this will apply additional tension to the spring.

Take hold of your wrench and use it to loosen the screws, which are usually found at the base of your mower’s bracket. Most of the time, manufacturers have two screws attaching the bracket to the deck.

You don’t have to take off the screws, however. You simply have to loosen them.

Pull the Bracket Away From the Spring

Now that the screws are loose, you can begin to pull the bracket away from the spring and toward you.

Keep on pulling until you notice resistance.

Tighten Your Mower’s Bracket Screws

Using your wrench, turn the screws until they are tight.

Ensure that they are tight enough so that the bracket does not get affected by any pressure.

Engage the Blades of Your Mower

Get your hands on the lever and engage the blades. This will make everything tighten up again. Next, check the deck belt of your lawn mower to see if there have been any results.

Ideally, the belt should feel tighter and the spring should be stretched further. This is an indication that your lawn mower belt has been tightened properly.

If you feel that the belt is still loose, go back to the third step where you loosen the screws. Repeat the process until the belt has been significantly tightened.

Test Your Lawn Mower

At this point, you’ll be able to see if you have made any real difference to the tension of your mower’s belt. When you feel the lawn mower drive belt loose and still slack, you may need to check the belt again.

But before you turn on your lawn mower, it’s a good idea to check the other parts of the engine. You’ll also need to note that some manufacturers have placed a belt keeper for their mowers. This contraption is placed in the mower to stabilize the belt while reducing friction.

Doing a quick check on these parts will help ensure a mower with good engine parts. Look for the spark plug, the plug wire, and the cub cadet. Once these are inspected and considered working, turn on your lawn mower.

Your lawn mower blades should be cutting blades immediately after you push the lever. You can consider the lawn mower drive belt loose if there is a whirring sound.

Look for a faster spin cycle at full speed compared to previous spins. If the speed is indeed quicker and faster than before, then the adjustment of the tension of your mower’s belt has been a success.

Otherwise, you might need to repeat the third step and tighten the belt all over again. Do this until you feel that the spin cycle is significantly faster than the previous try.

How Do You Identify the Causes of Loose Mower Belts?

To identify the causes of loose mower belts you have to know the “symptoms” that will show up. Sometimes, loose mower deck belt symptoms can show up as patches of untrimmed lawn. Other times, the riding lawn mower just doesn’t move properly.

Tightening the belt of your garden mower is one thing, but keeping it so is another. While we want our machines to last as long as we want them to, not all of them do. Here are some reasons how the belt of your mower can become loose:

– Worn Belt

Even the best belts can have their limits. When used excessively over a long period of time, mower belts eventually experience normal wear and tear.

As it becomes thinner, the belt slips off.

– Damaged Belt

Sometimes, the cause is a damaged belt. The links experience factory defects or become damaged over time, which can cause the whole belt to come loose.

Usually, this is due to a product defect or an inferior product replacement.

– Stretched Out Belt

Most people won’t believe it, but metal mower belts do stretch out eventually. While metal is hard, it is still malleable and can easily deform under heat and pressure.

Once the belt starts stretching, it becomes too big and eventually comes loose.

– Wrong Belt Used

There are times when the belt is just too big for the mower. Most of the time, this is caused by using the wrong belt size.

Always refer to the owner’s manual to determine the correct belt size for your garden mower.

– Bent Belt-keepers

The pins that are alongside the pulleys are belt-keepers designed to hold the belt in place. If one or more of these pins should become bent, then the belt eventually comes loose.

– Split Plates or Brackets Below Pulleys

The pulley keepers and pulleys get the brunt of the force when the belt keeps coming off. Sometimes, they can split. When turned on, these damaged parts can cause to belt to slip off.

– Debris Buildup

Too much use can result in debris, such as sticks, grass, and dirt, building up over time. If not regularly cleaned, these can easily cause the belt to slip off or come loose.

– Safety Tips and Tricks

Operating a lawn mower can be a dangerous activity if safety precautions aren’t taken. To make sure that adjust the tension of your mower’s belt is done safely, here are some reminders:

• Read the owner’s manual to understand how to care for and maintain your garden mower.
• Check your mower regularly to see if there is any damage.
• Regular mower checkups also help in preventing future repairs and damages.
• Always turn off the engine when checking your mower.
• Aside from turning off the engine, remove the key from the ignition.
• Keep children and pets away when maintaining or repairing your garden mower.
• Keep an eye on the cutting blades as they can easily cut you.
• If there are still problems with the belt, it may be time to ask for the help of an expert.

Frequently Asked Questions

– Can You Just Simply Replace the Belt on Your Mower?

You can just simply replace the belt on your mower, yes. However, it is best to replace the belt only when there are certain signs of damage. Otherwise, you would just be replacing a perfectly good belt and wasting money.

– What Should be the Length of the Belt for my Mower?

Manufacturers produce belts with varying lengths that measure anywhere from 42 to 55 inches. Depending on your model, you will need the exact length. If you use the wrong length not only will it not work you can severely damage the machine.

Conclusion

Tightening the belt of your mower doesn’t have to be hard. To recap, here’s what you need to remember:

• Check the condition of the belt of your mower for any damage.
• Look for the parts of your lawn mower that need to be visually assessed for damages.
• Loosen the screws and pull the bracket away from the spring.
• Tighten the bracket screws of your mower and make sure everything is screwed on or assembled tightly.
• Engage the blades of your garden mower and test it for performance.

Once you learn how to adjust the belt tension of your mower, you’ll never wonder again how tight should a mower deck belt be. With this article to guide you, you’ll soon be the expert in maintaining and keeping the best mower in your neighborhood.

Lawn Mower Parts

Search and shop all the parts you need for your riding lawn equipment and Gator UTV including lawn mower blades, filters, belts, spark plugs, oil, and home maintenance kits.

Find Parts

Search part numbers and John Deere parts diagrams to identify exactly what you need to keep your equipment running smoothly.

Quick Reference Guides

As a John Deere owner, when it’s time to maintain, service or repair your equipment we have easy-to-use information sheets that keep your John Deere equipment running well.

Home Maintenance Kits

Feel confident in tuning up your lawn mower or garden equipment this season with our Home Maintenance Kits. Easily find the right product so you can DIY and save!

Looking for your Serial Number?

Finding your lawn mower’s model number and serial number is as easy as locating the identification tag on your machine. As seen in the example, the model number will be displayed below the MODEL heading (Example: Z235), and the serial number will be underlined on the top-right corner of the tag (Example: 130002).

If you’re looking for the engine number, that can be found directly on the engine itself.

Home and Garden, eat your heart out.

Get the latest on how to care for and enjoy your yard and garden. The articles and videos are informative and the ideas are amazing.

MowerPlus Mobile App

MowerPlus is the app you need to keep your John Deere riding lawn mower running well and your lawn looking great this season. The app tracks and records yard tasks and serves as a one-stop shop for seasonal care tips and maintenance activities. Know your mower and know how you mow with John Deere’s MowerPlus app.

The Right Part. The Right Price.

At John Deere, you get the value of choice for your maintenance and replacement parts for all makes and ages of machines – at any budget.

Genuine Parts

Genuine John Deere Belts Blades are your best choice for your newer machines.

Alternative Parts

Alternative Parts are an economical solution for your John Deere equipment.

The John Deere Easy Change™ 30-Second Oil Change System

Never drain engine oil again.

We’ve changed the oil change. Revolutionized it really. See how fast and easy changing your oil can now be on 100 Series Riding Lawn Tractors with the John Deere Easy Change™ 30-Second Oil Change System. Only from John Deere. Included on the E120, E130, E150, E160, E170, and E180 models.

Step One. Take it off.

Lift the hood. Make sure the engine is cool, then, twist to remove. It’s that simple.

Step Two. Twist and lock.

Grab the new Easy Change™ Canister, twist and lock into place. Make sure the arrow on your Filter System aligns with the arrow on your engine.

Step three. Done.

Close the hood and mow. John Deere recommends the Easy Change™ 30-second Oil Change System every 50 hours or at the end of your mowing season. Don’t drain engine oil ever again.

Draining engine oil is so 2017.

The engine modifications and new technologies are in. The re-envisioned oil filter with a media designed to resist breaking down in oil over time is here. The thousands of hours of testing are done. The end result is an all-in-one, oil and oil filter system like no other. The first of its kind. And thanks to the new John Deere Easy Change™ 30-Second Oil Change System (“System”), you’ll never have to drain the oil from 100 Series Riding Lawn Tractors again.

Here’s why: The new System captures contaminants and recharges your engine with nearly a quart (0.8qt) (0.76 l) of new oil. In fact, this System increases the amount of oil in the engine by nearly 40%. 2 Your engine likes that.

What do you mean, I will never have to drain oil from my engine again? How is that possible? The answer is simple. We have developed a better filtration system and filter design for our 100 Series Riding Lawn Tractors 1. This fully synthetic filter media has greater surface area which increases its capacity to hold harmful contaminants. What’s more, the filter media is designed to resist breaking down in oil over time. Which means you’ll get a cooler running engine. And a cooler running engine and better filtering helps increase engine oil life. John Deere’s recommended oil service for 100 Series Riding Lawn Tractors 1. is to change the System every 50 hours or once a season, whichever comes first. Remember, the System replaces a portion of your engine oil. And that’s plenty.

The System uses John Deere Turf-Gard™ Oil. Using John Deere Turf-Gard™ Oil ensures you are using the exact oil specified by John Deere engineers.

Testing. Testing. Testing. Thanks to thousands of hours of rigorous and extensive testing, you can feel confident your engine will run for years to come.

1 The John Deere Easy Change™ 30-Second Oil Change System is available on E120, E130, E150, E160, E170 and E180 Lawn Tractors today.

2 Compared to similar V-Twin engine models that do not have the John Deere Easy Change™ 30-Second Oil Change System. That includes equivalent Deere 2017 models and 2018 models without the System.

Frequently Asked Questions:

What is new with John Deere Riding Lawn Equipment?

We are excited about the exclusive John Deere Easy Change™ 30 second oil change system. Exclusive to John Deere and only available on certain models of the new 100 Series Lawn Tractors. These tractors are designed for ease of use for both operation and maintenance. The John Deere Easy Change™ System (“Easy Change”) allows the user to easily complete the recommended engine oil and filter maintenance in 30 seconds.

What is this new oil change system?

We changed the oil change. The all-in-one oil and oil filter system gives the owner the ability to change a portion of the oil and the filter in less than 30 seconds.

What happens to the rest of the oil in the engine when the Easy Change system is replaced?

The Easy Change system replaces.8 quart of oil. The remaining oil in the engine is refreshed by the charge of new oil included in the replacement Easy Change system. Combined with 40% more engine oil capacity, improved filtration and cooler running temperatures which help extend oil life, it is no longer necessary to remove and dispose of all the oil in your engine during service.

What makes the Easy Change system unique from other filters?

It is not just a filter. It is a newly developed technology system that allows a new “filter” to come already charged with oil and allows you to remove an existing filter and the contaminants inside without tools and without making a mess. Beyond the filter, technology within the canister and on your engine makes this possible.

Models with the Easy Change oil system use a fully synthetic filter that has more capacity to trap and hold contaminants. The larger surface area of the Easy Change canister acts like a radiator helping the oil to stay cool.

Does the Easy Change system somehow decrease the life of the engine?

The John Deere 100 Series lawn tractor models, with and without Easy Change, are specified for the same lifetime and are rigorously tested to the same standards to ensure the life of the tractor meets expectations.

Can I add the Easy change system to an existing tractor?

Because this system also requires unique features within the engine, the Easy Change system cannot be added to an engine that was not equipped with it at the factory.

Can I change all the oil if I choose to?

You could if you wanted to. There is an oil drain plug. It is not required for maintenance.

How often do I need to change the Easy Change canister?

Every 50 hours or once a year. The 100 Series Lawn Tractors with and without the Easy Change system have the same maintenance schedule.

What type of oil is recommended?

We recommend only John Deere Turf-Gard™ 10W30 Oil. The Easy Change canister comes pre-filled with John Deere Turf-Gard™ 10W30 oil.

How do I recycle the old oil?

Many local government recycling programs, authorized retailers, auto repair stations, and auto parts stores will puncture and recycle used oil filters and oil.

Do I ever need to add oil?

Yes. Consistent with our service recommendations for this product, you should check oil level daily and add oil if required.

When Is It Time To Replace Your Lawn Mower Belt?

With summer underway and lush green blades of grass reaching for the sun, it’s time to get out your trusty lawn mower and groom the lawn for a level surface.

Like any machine with a combustion engine, lawnmowers require regular maintenance such as oiling, cleaning, and parts replacement. It’s recommended that you attend to any necessary maintenance your lawn mower needs before it becomes a bigger and more costly problem. Lawn mower belts are one of the components in your mower that you need to keep an eye on.

In this article, we’re going to talk about the signs of wear that indicate that your self-propelled lawn mower needs a belt replacement.

Types Of Mowers

There are push reel mowers that don’t have motors to spin the blade. Their blades spin with the wheels when you push the mower over the grass. This type of mower requires physical force to get them to work and is best suited for small lawns.

Self-propelled mowers are powered by a small motor that cuts the grass and powers the drive system, which makes it move forward on its own without the need for manual pushing. This makes it ideal for mowing hills, plains, and large areas.

What Does A Lawn Mower Belt Do?

To better understand what part your lawn mower belt plays in cutting grass, it’s important to understand your mower’s engine crankshaft configuration.

Once you pull the starter cord, the inlet valves which are connected to the camshaft release a fuel-air mixture. This mixture is compressed by the pistons’ compression stroke and lit by the spark plug, causing combustion. The shockwave from the combustion pushes the piston down and makes the crankshaft spin.

The tension springs on the valves control the opening and closing of the valve by pushing it back down after the combustion stroke. The crankshaft is connected to the camshaft via a drive belt to keep the machine spinning.

The lawnmower blades are also connected to the crankshaft via rear pulleys and a deck belt, so when the crankshaft is driven from the combustion strokes, the blades also start moving.

If all of this is too technical, the simple version is lawn mower belts link rotating shafts to channel the spinning force from the crankshaft to the mechanisms of the mower, i.e., the blades.

What Causes A Lawn Mowers Belt To Stretch?

Over time and use, lawn mower belts can elongate or even break in some cases. When this happens, it also loosens the drive belt’s grip on the pulley system rendering the mower inefficient or slow.

The main reason this happens is because of physical deterioration from prolonged use, which can be expected with any machine part. Most lawn mower belts are made from reinforced Kevlar. There’s no definite period over which stretching or damage can happen, but increased use means it will need replacing sooner.

Another reason for lawn mower belts stretching is the poor quality of material used in making the belt. The best way to avoid this is to compare the replacement belt to your original belt before buying it to ensure it’s the right belt for your machine. You can also buy another one from the original manufacturer.

How Do I Know If My Lawn Mower Belt Is Bad?

If your lawnmower is making a lot of noise, it might be a symptom of your belt’s loosening grip. It’s best to check on it before the belt breaks while being used, damaging the machinery. All it takes is a quick visual inspection to know if the lawnmower belt has reached its expiration and needs replacing.

Here are the signs to check for:

• Smooth edges and evenness throughout the length are the ideal standards for lawn mower blades. If so much as a tiny portion is worn out or chipped away, that’s a potential hazard.
• Examine the part of the belts in contact with the pulleys. If they seem glazed or burned, the belt needs replacing right away.
• Shallow cracks tend to set in after months of use. If the belt appears brittle, it’s at high risk of breaking and should be replaced.

Adjusting The Tension

Replacement is one way of dealing with loose belts; another way is to adjust the tension. However, adjusting the tension won’t solve the problem if the belt is damaged. Adjustments only work in cases where the belt has come loose by accident or improper use, not physical deterioration.

The only way to tell if the belt needs adjusting or replacing is with a physical examination.

After that, adjusting the tension is simple. Inspect all the components of your mower deck. Your swingarm needs to be rotating freely. If it isn’t, try using oil. The cable that is connected to the lever is attached to a spring. The spring should be perfectly stretched but not loose. Problems in these components contribute to the loosening of the belt.

Next, tighten the belt with a cable adjustment and then check the new tension by testing the lawn mower on the grass again.

How To Replace Your Lawn Mower Belt?

Replacing your lawn mower belt is an easy-to-learn skill and should only take a few hours. It’s a good idea to keep a spare belt or 2 on hand, so you don’t need to run out in the middle of the process.

Just remember to switch off the engine, set the apparatus down on a flat surface, and wait for it to cool if you’ve just used it before switching the belts.

• Disconnect the spark plug wire and switch off the ignition as a safety precaution.
• Remove the mower deck covers and disassemble the components to remove the drive belt from the engine pulley, which is connected to the crankshaft. Also, un-secure the belt fasteners.
• Disconnect the mower deck from the main body.
• Take the belt off of the pulleys you see in the mower deck and connect the new belts.
• Reassemble everything in reverse order and re-attach the mower deck to the main body. Remember to secure all the linkages using washers and retaining pins. You can now put the spark plug back in.

Check out this detailed video tutorial for a step-by-step breakdown of the process:

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