How To Remove a Lawnmower Blade

Our tools need to be repaired and maintained. I'll show you how to remove the lawnmower blade in this video.
Power tools can be dangerous if you do not have the proper training or experience to operate or repair them. I have no way of knowing your skill level and will not take any responsibility for your safety. Be careful and find a local expert if you need help.
As always, thanks for watching!

[@gwenfrancart7258]

Thank you! For a single mom who never had to do this before, you made it safe and easy. You made me independent. I'm grateful.

[@SyberPrepper]

Gwen, you made my day, my week! When I started putting out videos, I hoped that I could share any skill or knowledge I had acquired, to help someone. Thanks so much for letting me know.

[@gwenfrancart7258]

@@SyberPrepper I had an offer by a man to put it back on. I said I get to do it, I took it off. He can watch. LoL

[@mick7106]

I was taught many many years ago, The way of gripping a pair of mole grips on the side of the mower, which also stops the blade turning, without any bits of wood slipping, risking injury, looking a prat making a video without rehearsing or editing! You got there in the end! Good job!!

[@SyberPrepper]

Thanks for the tips. I'll give it a try. I pull the blade off a couple of times per year and sharpen.

[@ddpeter4444]

A block of wood and a blade that is hard to remove can lead to a bent blade. If you are removing the blade and replacing it with a new one then no problem. If you are just removing the blade to sharpen it, I would not recommend this. You can bend the blade and then you can have a real problem. Also, always balance the blade before installing.

[@MrWardnine]

He made that look very difficult I am going out to buy a new mower instead

[@jstriker623]

I think he was joking

[@1234tric]

That's not the safe / correct way to change the blade. Un safe technique. Stick a longer 2x4 through where grass exits mower. It will safely lock the blade. I hope that will keep you safe from harming yourself.

[@2012isRonPaul]

forget everything and just make sure that you improvise with your bare hands all the time. especially near powertools and heavy metal equipment

[@Gregman420]

"And, of course since we're doing a video, the block has to pop out." HAHA. Never fails, huh?

[@SyberPrepper]

Greg M Absolutely.

[@jomcginn2100]

thanks for the vid... I have two 15/16' bolts stuck on my Tiger Cat 2. I'm using your method with some PB Blaster Rust breaker spray.

[@SyberPrepper]

Another method to unstick the bolt is to heat it with a bernzomatic torch like you would use to solder copper pipes. Of course you have to be careful not set the old grass stuff under the mower on fire. Also, make sure you don't have any gas spillage around before you start. Fire extinguisher is also good to have close. Good luck and thanks for watching.

[@MsFred58]

Worked great. Thanks

[@sheld803]

servicing a Mountfield HP470 first time for a friend found an easier way to take off blade step1 unleash the spark plug step2 grab a pair of mole grips step3 clamp on edge of bowl (use an extension piece if needed) step4 undo the nut anti-clockwise to undo found a harder way to refit step1 placed the blade on the opposite end of the mole grip after sharpening it step2 refittied the blade with cutters going opposite anti-clockwise step3 then realized after 2hrs was on the wrong way step4 had to undo again and take off step5 realized the owners before the friend had the blade cutter edge on the wrong way anyway^ step6 placed blade the right way with cutters going anti-clockwise step7 don't make the first mistake like I did.. happy gardening!

[@SyberPrepper]

I've had repairs, and days that go like you described. Good for a laugh as you move on down the road of life. Thanks for sharing.

[@mojoman3455]

Always best to drain the oil first and change it at the same time. Otherwise when the mower is tipped over it drains into the carb assembly and foam air filter..the mower then smokes like buggery for weeks.

[@bfcraigable]

When removing the spark plug wire, remember to tuck it up and away from the spark plug for extra safety.

[@xrtgameryt8008]

They fit and seem decent quality.

[@tims8299]

Thank you

[@KathleenLindseym322]

Love the video. I've never done this before and need to know what tool you used to loosen the bolt holding the blade. What is it called?

[@SyberPrepper]

Hi Kathleen, I used a thing called a ratchet and a socket. The ratchet is nice because it has a switch allowing you to lock it into one direction or another. However, you could also use a breaker bar and a socket. So, ratchet or breaker bar. Either one will work. Don't forget to disconnect that spark plug wire before you start working on the blade. Thanks for watching.

[@danedu4519]

Seriously why engineers or people that design those thing don't make it easy to remove it? I mean how hard would be? or are they stupid?

[@rancherhicks]

I watched a number of videos. One mentioned different types of mowers that should or should not be tipped certain ways. Mine is a Craftsman, but there are two models. If tipped the wrong way, one could ruin the airfilter the other the carburetor. One showed a better way to secure the blade by using a vice grips. One recommended using the old oil to paint the underside and avoid rust. Lots of good tips like this video offered. Check out all videos to be sure you don't do something wrong.

[@paulponce7089]

I tried to unscrew the bolt of the blade of a 20 year old lawn mower,a rusty bolt is very hard to loosen. I had to heat the shaft with a disposable blow torch where the bolt screwed in. Heat the shaft for a minute to get the metal expand. (Don't blowtorch the the bolt head) while the shaft still hot,try to unscrew the bolt with care and wear a pair of industrial leather gloves..a socket wrench is an ideal. A spanner would slip, and hurt your knuckles..

[@timbarnes3581]

Also remember to tilt mower with the carburetor UP.

[@adamhirsch6102]

All I had to do is look at the thumbnail, and I knew what I was doing wrong. Only watched it and liked it, because I wanted to give it credit! Great video! Thanks!

[@SyberPrepper]

Thanks Adam. I appreciate that it helped you and I appreciate you going the extra steps!

[@JohnMcCaffrey]

Thanks for this!! I was trying to hold the blade in a goofy way, but wood block makes so much more sense. (oh, and I forgot about the unhooking the spark plug, thanks for the reminder)

[@grasscutter88]

I used a c clamp and a breaker bar and I think I stripped out the blade adaptor cause now the shaft spins and the blade stays still. I would recommend using an impact wrench. Like others said it will come off without having to hold the blade. Just have the spark plug wire disconnected.

[@garyharris1932]

+grasscutter88 A block of wood is nice if you have three hands. A "C' clamp will solve your problem.

[@loki2826]

blade on electric mower for about 8 yrs. so nve removed. so decided to change it and buy new. one your tip helpfujl however I simply used a house brick in place of wood. also a lot of wd40 spray. let I sit for 3 hrs. 15mmm wrench and a 2 foot steel tube which I also use on the tyre wrench when changing tyres. for extra leverage it came off quite nicely. thank you

[@garychase]

Loved the fact that you struggled with it. It was definitely more real that way. I'm going to do this today and I'm sure I'll struggle a bit too. Thanks!

[@SyberPrepper]

Gary Chase I'm glad you liked it. I've had several comments saying I should edit out "the struggles", but this version shows some problems that may arise. Thanks for the comment. I appreciate it.

[@SyberPrepper]

Appreciate the comments!

[@bctruck]

an easier way is to grab the end of the blade with your left hand and pull towards you while pushing away with the wrench. a breaker bar requires far less effort to turn as well.are you going to put an edge on it or buy a new one?

[@DuctTapeSusie]

Never replaced my blade before. Thanks for the video. I have a question about gas and oil. Do i need to empty it before turning the mower on it's side?

[@SyberPrepper]

DuctTapeSusie Hi. Short answer. If you have gas in the gas tank, it is better to empty that into a container before removing the blade. Long answer. Typically, when I remove the blade to sharpen, it is a good time to change the oil as well. (Don't forget to remove the spark plug wire for safety.) So, drain gas, drain oil, change/sharpen blade. A good time to do this is after you cut the grass since the gas tank should be mostly empty. Great question.

[@rickdavis3370]

Brilliant! I was changing my mower blade for the first time and just knew that there had to be a way to lock the blade in order to loosen the bolt. The wood block method is perfect!

[@lloydwilliams7674]

Instead, consider using a set of vise grips. Tightly "fasten" them on the frame of the mower after setting them in a place where the grips will stop the rotation of the blade. Using this method will eliminate the likelihood of bending the blade by using a piece of misplaced wood. In any case, wear gloves to protect yourself.

[@SyberPrepper]

I hear ya and I'm right there with ya. :) I love your channel by the way. I debated whether to even put the video out there. But in the end I thought somebody may learn something from it. I know I always learn from the comments people leave. So between the video and the comments, it might help someone and that is what it is all about.

[@rayrocker5150]

Maybe you should take a look at some KZbin vids showing HOW to install that Block of Wood so the blade don't turn OR GET A BIGGER BLOCK!

[@bctruck]

the breaker bar is definitely a way to go that requires less umfff. im all about less umfff!! LOL!

[@derodog87]

Also thankyou for the video. I just got my blade off after watching.

[@SyberPrepper]

+Adiozero Thanks for watching and for commenting! Glad it was helpful.

[@aemstrophy3727]

you can also place a wedge between the end of the blade and lawnmower deck.

[@SyberPrepper]

ray704ful, Thanks. I'll give it a try.

[@jamesyouldon6704]

Block is on the wrong angle there.

[@brendanb9575]

This guy is dangerous. Couldnt hang out to watch him cut his hand off

[@lonetrader1]

That was the best part tho.....

[@racecar157]

what size bolt do you use on blade

[@judybilliard8857]

If you use a cheater bar ( a piece of pipe slipped on the end of your ratchet the end for better leverage) on the end of your ratchet it makes it much easier!!

[@SyberPrepper]

Great idea. I've used that tip when loosening lug bolts on tires so I know it works. Thanks!

[@gloera2011]

On 3:56 that part you are touching. I bought a use lawnmower and now that I'm trying to remove it it won't come out at all. Use alot of wd40 and some muscle power but it is stuck. Any ideas you could recommend me?

[@SyberPrepper]

Sounds like rust may be holding it? Try vibrating it with an impact driver in different places. Or, if you have a hammer drill, put the head of the hammer drill (without the drill of course) and put it on different place around where you are trying to break it loose. Tapping with a hammer could work. Lastly, you could heat it with a small torch like you use when soldering pipes together. Careful. Do any heating outside and where no gas has leaked. Good luck.

[@golfbum18]

Grab a piece of wood, doesn't have to be real thick but about the width of the deck. Prop it in there and begin to twist (unloosen) blade. The wood might want to rotate but at some point, it will catch on something on the deck, stay rigid in place and the bolt will loosen.Thanks for the idea.

[@Grizzydan]

This is why I love 18v impact drills... you can pop off lug nuts with those babies, and it makes life so much easier zipping them off and back on.. (always make sure to torque them down properly) Not to mention the leveling jacks on the rv.. 3 minutes BOOM done! Thanks! I didn't know which way to turn, wasn't sure if was the old lefty loosy or not. I haven't had a lawn mower in decades! haha welp off to the shop. Cheers!

[@SyberPrepper]

18v impact drill. Excellent tip. Thanks.

[@mabelzhu5978]

We are a strip steel factory.can supply the saw blades and brush cutter blades.welcome to your inquiry [e-mail] whatsapp:[phone]

[@kartboarder22g17]

Yea I used my 1/2" pneumatic impact gun, took it off like it was nothing.

[@dockjm]

I'm thinking -- forget the mini-block, and go straight to the large block method of securing that blade??

[@goldwingman1500]

Why dont you clamp Multi Grips on the Side of the mower Body so if it spins it will hit against the Grips ,Then undo the Bolt .Ps i have a Honda i need to remove the round disc to open the motor up for new rings which way doe,s that Centre bolt undo anti clock wise or clock wise Thanks for your Help ?

[@SyberPrepper]

goldwingman1500, Good suggestion on the MultiGrips or ViceGrips. I've not worked on Honda mowers, but I would guess removing the bolt from the crankshaft would go opposite of normal, so you would have to turn clockwise. Also, check out the JEREMY FOUNTAIN channel on KZbin. He works on a lot of Honda's.

[@goldwingman1500]

You can put the Multi grips on the body so the blade will hit against it so it will not spin when you undo the bolts ,Ps i have been to your friends channel he is just what the Dr orderd Thanks .

[@sgmbrandonconover5581]

What size socket is needed ?

[@johndoe2808]

Gee thanks Mr. Now I'm probably going to cut off my little hands.

[@petekellond711]

Americans do love to talk and make a very simple process (pra-cess) sound like highly advanced manoeuvre. Also - why the random reference to the Spark Plug? Surely a silence or perhaps some music would have worked :) Thanks anyway.

[@bexhillbob]

You should disconnect the spark plug because otherwise, if you turn the blade while you're removing it, there's a chance that it could start the engine.

[@cjones4433]

I know this video is over 4 years old, but to hold the blade from slipping, lock a set of vice grips on the edge of the deck. This should prevent the blade from turning. Usual disclaimer...use at your own risk. 8=-)

[@user-we9rr2ff1b]

that's smart bro. never thought of that.

[@ray704ful]

i use a impact wrench

[@ray704ful]

if you use wood to stop the blade try using the discharg opening side or rear to hold wood want slip

[@SyberPrepper]

Tanja, Glad the video helped. That was a great idea to use the WD40 oil to get through some of the rust. The 2 foot long tube is also a great idea for leverage. Thanks for your comment.

[@Northrup73]

Use a pair of vise-grips to block the blade.

[@Yert12742]

how do you remove that flat peice that comes before the blade?

[@tommyw4426]

I got something good out of it I like this video

[@jstriker623]

Mine's rusted on there. I already broke the end off a small breaker bar ....then I put a wrench on it+started hitting the wrench with a hammer...this is after multiple soakings of wd-40. Damn thing still didn't budge...and yes, I'm going counterclockwise.

[@SyberPrepper]

That's a pain for sure. I've had good luck with a product called Liquid Wrench by Gunk. If that doesn't work you can try using a torch (like the one you use for plumbing pipes) and applying it to the nut. The heat will make the nut expand and it should come loose. Of course, do this outside and get anything flammable out of the area (including dry grass on the bottom of the mower). It is way too easy to catch stuff on fire so have a fire extinguisher handy. Good luck.

[@deedecorte9448]

I use a really thick leather farm glove.

[@MrEzequielnena1]

thank you. this worked perfectly for me. my only advice is to be careful of which side the mower is tilted to. I filled up my filter with gas and oil that leaked while I changed the blade. no biggy. just a tip

[@SyberPrepper]

MrEzequielnena1, Yeah, I probably should have said something about that. Thanks for watching and for the comment.

[@TheSuperJairus]

I just came here to establish which way the thread would be but the wood blocks a solid idea.

[@SyberPrepper]

Thanks for watching and the comment.

[@rancherhicks]

I would have liked to know about the gas and oil. Won't these spill when you tip the mower? If so how do I empty them so I can tip the machine and not have them spill?

[@SyberPrepper]

It is best to work on the mower after you have cut the grass and the gas tank is mostly empty. (Always disconnect the spark plug before working on the mower.) Then you won't have much trouble with gas spillage. Another thing you could try is to take off the gas cap, cover the opening with saran wrap and screw the gas cap back on. This should reduce gas spillage when you tip the mower up. Of course, don't forget to take the saran wrap off before you run the mower. I don't have trouble with the oil spilling out when the mower is tilted up. However, once you complete your work on the mower, and all 4 wheels are on the ground, let it sit for a few minutes and check the oil dipstick. If oil is needed you can add it then.

[@rancherhicks]

I watched some more videos and got some more information. Such as how to drain the oil. One said to take the spark plug right out, which shouldn't be that hard. Others showed how to sharpen the blade. I watch many to be sure I can do it safely.

[@soniatorres1407]

how can I replace the starting throttle

[@SyberPrepper]

Great way to do it. Thanks for watching.

[@htscalemodelarmour8768]

Put down the tools and walk away!

[@Ph0t0bug]

A good wood or metal clamp on the body will help to stop that blade from turning :)

[@SyberPrepper]

Good idea. Thanks.

[@kimk24]

Thanks :) i was struggeling with my mower for more then an hour. But after i saw this video i used 5 minuts to get it off :)

[@SyberPrepper]

kimk24 I'm really glad it helped you. With every video I create I wonder if it will help anyone. I appreciate knowing it did. Thanks for letting me know.

[@andrewstollmeyer43]

It was super easy. Thanks for the tutorial

[@markrush5013]

2 words...C clamp

[@SyberPrepper]

Thanks for the comment.

[@Jaxmarsh10]

Do you have a video on how to replace the drive belt?

[@SyberPrepper]

Manuel Vasquez Sorry. I don't have a video on that at this time. Maybe in the future. Thanks for watching.

[@derodog87]

The key is leverage.

[@stunod1479]

Too much talking. Should be a 20-30 second video.

[@Blackops2legends]

Lol

[@MacaCo5618]

unsafe...

[@melechhaarayot9273]

The board thing worked great! Thanks

[@SyberPrepper]

+Melech Ha'arayot Thanks for commenting and watching. Glad it was helpful.

[@GladiatorReid]

or you could edit out the 2 mins you wasted fannying about with the timber

[@tmgltd2994]

im sorry but this hurts to watch. eh b"y...?

[@grandfresh9196]

Counterclockwise .