How To Remove A Stuck Lawn Mower Blade Adapter

Easy to follow video tutorial on How to remove a lawnmower blade adapter. A left hand thread is common on lawn tractor mowers with rear discharge and collector.

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Stand on the board while you turn the bolt.

How to remove a stuck lawn mower blade adapter. Simple if the blade is designed to cut turning left then it will be a right hand thread this is the most common type. Spray the bolt that secures the blade to the mower with penetrating oil. Allow the WD-40 to work for at least an hour.

Wedge a scrap piece of wood between the mower blade and the mower deck so that the blade will not move. Thats how you change a stubborn lawn mower blade. Look for worn slip.

The blade adapter is secured to the engine crankshaft by the single blade bolt. A soaked rag wrapped around your shaft should work. Once the blade bolt has been removed the blade adapter is ready to pull off the engine crankshaft shaft unless the key way is sheared and then you may need a puller.

Select the correct sized socket for the job usually 916 inch and remove the bolts that hold the blade onto the adapter. Remove the blade from the mower and keep the blade adapter parts for installation of. Visit my channel for more repair videos.

A lawnmower engine will not srank without the blade unless it has a cast iron flywheel. The average lawn mower blade has a lifespan of around 150 hours. To get a blade adapter off I always put a block of steel under the crankshaft just above the adapter and shock it off hitting it with a hammerSo use eye protectionOnce in a great while they may brake before coming offBut there only3-400 Ea.

Tilt the lawnmower up and place each front wheel on top of a concrete block. I dont have a hydraulic press and it does feel like something Id get much use from. If it does not pull off you will likely need to spray some rust penetration fluid on the top side of the blade adapter so that it will run down between the crankshaft and the blade adapter.

A blade balancer is a cone-shaped tool used to balance a rotary lawn mower. Spray your WD-40 onto the nut that holds your lawn mower blade to the actual lawn mower. To loosen a right hand thread you turn it to the left.

So viewing the deck on its side - if the blade cuts grass turning to the right its a left hand thread to loosen. Remove the stubborn lawn mower blade Position a board so the blade doesnt move if you turn the blade counterclockwise. Still removing the bolt head should allow the blade to be removed and then I can work on the bench.

The blade is only contributing to the bolt being stuck when it hits the deck. The average length of time that a lawn mower blade will last is about 25 hours before it needs to be sharpened. Check the condition of the blade adapter or slip clutch parts.

You will find the nut in the dead center of the blade. Courtesy of American Honda Motor Co Inc blade with worn mounting holes. Remove the minimum amount of metal to sharpen the blade and remove.

In this video I show you how to remove a stuck lawnmower blade adapterThe content in this video might not be applicable to your exact piece of equipment. Some blades can keep going for as much as 400 hours before needing to be replaced but those are typically higher quality blades. Spray the bolt liberally and allow the oil to soak for two hours.

Best Lawn Mower Blade. Different mowers have different sized bolts so choose the socket that fits. I take a 5050 mixture of kerosene and antifreeze and soak the problem.

This will allow access underneath the deck. The same idea applies to twin blade tractor mowers. Careful around animals and it may take a day or two After soaking clamp a vise grip on the shaft and block it to keep it from turning and then hit the adapter with a hammer like you are turning it off.

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