Yes, you can do it yourself – learning how to change belts on a snowblower is a key repair skill. It saves you money and gets your machine running fast when snow hits.
Your snowblower belts wear out over time. They get loose, cracked, or just snap. When that happens, your wheels or auger won’t turn right.
I’ve changed many belts on my own machines. It seems hard at first, but it’s really not. With basic tools and some patience, you can handle it.
This guide will walk you through the whole process. We’ll cover finding the right belt, getting access, and putting the new one on tight.
What You Need to Know Before You Start
Before you learn how to change belts on a snowblower, you need to know which belt is bad. Most two-stage blowers have two belts.
One belt runs the wheels for drive power. The other belt turns the auger to chew up snow. You need to figure out which one failed.
Check your owner’s manual first. It has a parts diagram. This shows you where each belt lives on your model.
If you don’t have the manual, don’t worry. You can often find it online. Search for your snowblower’s make and model number.
The model number is on a sticker or plate. Look on the frame near the engine. Write this number down before you shop for parts.
Gather your tools before you begin. You’ll need a socket set, wrenches, and a screwdriver. A pair of pliers helps too.
Work in a clean, well-lit area. Put down a tarp or cardboard. This keeps small parts from getting lost in the snow or grass.
Finding the Correct Replacement Belt
Getting the right belt is the most important step. The wrong size won’t work and could break things.
Take the old belt with you to the store. This is the best way to match it. Look for numbers printed on the belt’s side.
If the belt is broken and gone, use your model number. An auto parts store or small engine shop can look it up. They know how to change belts on a snowblower and have cross-reference guides.
Belts are measured by length and width. Common sizes are 1/2 inch or 5/8 inch wide. The length is in inches, like 26 or 32.
You can also measure the path where the belt goes. Use a soft tape measure or a piece of string. This gives you a rough idea of length.
Consider buying a belt kit. Some brands sell a set with both drive and auger belts. This is smart if your machine is old.
According to Consumer Reports, using OEM (original equipment) parts is best. Aftermarket belts can work, but quality varies.
Step-by-Step Guide to Changing the Drive Belt
Let’s start with the drive belt. This one makes the wheels go. It’s often easier to reach than the auger belt.
First, disconnect the spark plug wire. This is a critical safety step. You don’t want the engine to start by accident.
Tip the snowblower back onto its handles. You might need a helper for this. Put a block of wood under the auger housing to keep it steady.
Now you can see the bottom of the machine. Look for the belt cover. It’s usually a metal or plastic plate held by a few bolts.
Remove the cover bolts with your socket set. Keep them in a cup or magnetic tray. Note where each bolt came from, as lengths can differ.
You’ll see the old belt looped around pulleys. Take a picture with your phone before you remove it. This is your roadmap for the new belt.
Loosen any tensioner mechanism. Many have a spring-loaded arm. Use your pliers to pull back the spring and slip the belt off.
Slide the old belt off the pulleys. Clean any debris from the pulley grooves with a rag. A clean groove helps the new belt last longer.
Route the new belt exactly like the old one. Use your photo as a guide. Make sure it sits deep in each pulley groove.
Release the tensioner to put slack on the belt. The belt should be snug but not guitar-string tight. You should be able to press it down about 1/2 inch.
Reinstall the belt cover. Hand-tighten the bolts first, then snug them with your tools. Don’t over-tighten and strip the threads.
Lower the machine back down. Reconnect the spark plug wire. Test the drive in a safe area without snow to check your work.
How to Change the Auger Belt on Your Snowblower
The auger belt is trickier. It’s inside the machine near the auger gears. You need to remove more parts to get to it.
Again, disconnect the spark plug wire. Safety first every single time. Place the machine on a flat, stable surface.
You often need to take off the auger housing. This is the metal casing around the spinning auger. Look for bolts around the edges.
Remove these bolts and set the housing aside. Be careful, it might be heavy. Now you can see the auger shaft and its pulley.
There’s usually a shear pin or bolt holding the auger to the shaft. You must remove this to free the auger. A punch tool helps drive out the pin.
Slide the auger off the shaft. This gives you room to work. You might see a second belt cover behind the auger.
Take off this cover. You’ll find the auger belt running from the engine pulley to the auger gearbox. Note its path before removal.
Like the drive belt, there’s a tensioner. It might be a bolt you loosen to move a pulley. Release the tension and slip the old belt off.
Clean the pulleys well. Grit and old rubber cause slippage. A wire brush can clean out the grooves.
Install the new auger belt. Follow the same route as the old one. Make sure it’s seated properly in all pulley grooves.
Apply tension to the belt. Check your manual for the proper deflection. Usually, a 1/2 inch push in the middle is about right.
Reinstall the auger onto the shaft. Line up the holes and insert a new shear pin or bolt. Don’t reuse an old, bent shear pin.
Put the auger housing and covers back on. Tighten all bolts securely. Reconnect the spark plug and do a quick function test.
Common Mistakes People Make
Many folks rush and skip the safety step. Always disconnect the spark plug. It takes two seconds and prevents a bad accident.
Another error is routing the belt wrong. One wrong twist and it won’t work. It can also wear out super fast or jump off.
That phone picture I mentioned is a lifesaver. Take it from a couple angles. This simple trick saves so much frustration.
People often overtighten the new belt. A belt that’s too tight puts strain on bearings. It can cause the engine to work too hard and fail early.
Forgetting to clean the pulleys is another common goof. Old gunk makes the new belt slip. It also grinds down the belt material quickly.
Using the wrong belt size seems obvious, but it happens. A belt that’s too long will slip. A belt that’s too short won’t fit or will break.
Not checking other parts while you’re in there is a missed chance. Look at the tensioner spring for rust. Check pulley bearings for wobble.
Tips and Tricks for an Easier Job
Use a marker to label wires or hoses you disconnect. A piece of masking tape works great too. This helps during reassembly.
Lay out your bolts in order on a piece of cardboard. Poke them through in the pattern they came out. You can’t mix them up this way.
If a belt is really stuck, don’t force it. You might damage the pulley. Spray a little silicone lubricant on it to help it slide off.
When putting on the new belt, start with the smallest pulley first. Then work it onto the larger ones. This makes the job much easier.
Have a friend help you tip the machine. It’s safer and prevents scratches or dents. An extra set of hands is always useful.
Keep your work area organized. A messy floor leads to lost bolts and tools. Take your time and stay neat.
The Occupational Safety and Health Administration (OSHA) says good lighting prevents mistakes. Use a work light if your garage is dim.
How to Know When Your Belts Need Changing
You don’t have to wait for a break to learn how to change belts on a snowblower. Look for warning signs each season.
Cracks on the belt’s sides are a big clue. Small surface cracks are okay. Deep cracks that go across the belt mean it’s time.
If the belt looks glazed or shiny, it’s slipping. This friction creates heat and wears it out. A new belt has a matte, textured look.
Listen for squealing sounds when the machine runs. This often means a loose or worn belt. It can’t grip the pulley properly.
Check for missing chunks or frayed edges. These are signs of advanced wear. The belt could snap any time.
Your auger or wheels might turn slow or slip. Even with the lever engaged, power doesn’t get through. This points to a worn drive belt.
Inspect your belts at the start of each winter. Do it before the first big storm. This is part of good snowblower upkeep.
According to Energy Star, good maintenance saves energy. A machine with good belts works better and uses less fuel.
Safety Precautions You Must Follow
Disconnect the spark plug wire every single time. Wrap the end with tape so it can’t touch the plug. This is your number one rule.
Wear safety glasses. Springs can pop, and debris can fall. Protect your eyes from unexpected stuff.
Use jack stands if you need to get under the machine. Don’t just rely on the tipped-up position. A stand is more stable and safe.
Keep your hands away from moving parts during testing. Even with the spark plug disconnected, parts can move if you turn them by hand.
Work in a ventilated area if you use any sprays or cleaners. Fumes can build up fast in a small garage.
Let the engine cool completely before you start. A hot engine and exhaust can cause burns. Wait at least an hour after running it.
Read your owner’s manual for model-specific warnings. Some machines have special steps or dangers. The manual is your best friend for safety.
What to Do If You Get Stuck
It’s okay to hit a snag. We all do sometimes. The first thing is to stop and take a breath.
Go back to your phone pictures or the manual diagram. Trace the path step by step. You might have missed a simple pulley.
If a bolt is stuck, don’t strip it. Use penetrating oil like WD-40. Let it soak for 15 minutes, then try again.
Search online for your specific model. Type “how to change belts on a snowblower [Your Model]” into a search engine. You’ll often find a video.
Videos are super helpful. Seeing someone else do it makes things clear. Pause and rewind as much as you need.
Call a local small engine repair shop. They might give you a quick tip over the phone. Many mechanics
