Troy Bilt advises that their mower blade bolts utilize a standard, right-handed thread – which means that you will turn the way that you are used to. Right, or ‘clockwise’ will tighten the nut and bolt assembly, while turning it left or ‘counter-clockwise’ will loosen it so that you may remove the blade for cleaning, sharpening, or replacement.
For the rest of this article, we’ll talk about specifics for various popular brands, as well as wrench sizes, ideal torque pressure, and more. Keep reading for helpful tips you can use with your mower at home!
Are Toro blade bolts reverse thread?
Well, technically the answer would be ‘yes and no’, in that the blades themselves aren’t actually threaded, but the nuts that hold the bolts in place are definitely reverse threaded. This is by design and you’ll find this in most mowers – the reverse threaded helps to keep the blades from coming loose with the high speed and vibration involved in mowing work.
Are Cub Cadet mower blade bolts reverse thread?
Cub Cadet blades are going to use a standard right-handed thread, which means that to loosen them you will need to turn the nut counter clockwise (left), and to tighten them you will turn them clockwise (right). You’ll want a torque wrench to do it, as you need a recommended torque of 70 to 90 pounds in order to secure it properly.
Are Craftsman push mower blades reverse threaded?
Yes. Craftsman push mower blades will be reverse threaded, so the rule of ‘righty-tighty and lefty-loosey’ will definitely apply. Turn the nut right to tighten up the blade and simply turn it left in order to loosen it. Just make sure when you tighten it that you use the recommended torque for your John Deere blade.
What size nut holds John Deere mower blades?
The standard bolt, so that you can get an idea of the nut, will be a 12-millimeter thread size, with a 1.750 pitch, and a 25-millimeter length. The flange diameter will measure exactly 26.600 millimeters and you should be able to easily fit it with your torque wrench, but check your paperwork to ensure that you use recommended torque.
What size is a Husqvarna blade bolt?
The blade bolt and washer assembly for these has been listed as being 1 x 1 x 1 inches and specifications for a 1 and ¼ inch x 3/8-24 inch has also been listed as a common standard. Be sure to check the specifications Husqvarna model for exact measurements, as this can occasionally vary with different models.
What size socket do I need to remove a Craftsman mower blade?
Most commonly you will need to deal with a 1 and 1/8 inch socket and you will also need a few other items for removal. You should have an open end or a box wrench in order to remove the hex nuts and a block of wood to secure the blades in place so that you can remove them and replace them with the new ones.
Is a lawn mower blade nut reverse thread?
Most mower blades will have a reverse thread blade nut. During normal use, the speed of the fans, as well as the resistance of the grass, and overall vibration require a reverse thread nut to keep your blade from coming loose or completely off. This is a fairly standard design that you will find in just about any mower.
How do I know if my mower blade is reverse threaded?
The easiest way to check is to try loosening the bolt, but you can also check by looking at the bolt itself. Left-handed threads will run across the bolt in a counter clockwise direction, going up and left, which right handed threads will run clockwise across the bolt and you’ll see them twining up and right.
Which way do you loosen a bolt on a lawn mower blade?
To loosen the bolt on most mowers, you’ll want to simply turn the nut left and this should loosen it up with a little elbow grease. You will need to secure the blades in place with a piece of wood, otherwise they will simply turn when you attempt to remove the nut. Once this is done, you should easily be able to loosen and remove the blade.
What size bolt is on a lawn mower blade?
While this may vary by make and model, the most common standard lawnmower bolt assembly will be a 3/8 by 1 and ½ inch size, so this is what you should expect. Tightening and removing should be easy, with a right turn tightening up the nut and a turn to the it left loosening up the nut for when you want to remove the blade.
Are mower blades universal?
Most mower blades are going to be specific to the make and model of your mower. They have specific torque requirements on installation, as well as different holes, bolt sizes, and more that must be factored in to ensure that a blade is compatible. Thankfully, 3rd party blades can certainly work, you just need to check that your specific mower is supported.
What is the torque for a lawn mower blade?
With push mowers, the ideal average torque is going to be in the neighborhood of 38 to as high as 50 pounds of foot torque for push mowers. Ricing mowers have faster and heavier blades and will need more, averaging in a range of 70 up to 90-foot pounds of torque for safe and proper operation.
Do you have to time mower blades?
No, there is no need to manually ‘time’ your mower blades. The way that are designed, the tips are always going to miss each other during work operation, and attempting to time them won’t really do anything. The blades will simply rotate but they are basically aligned perfectly when installed on most standard mowers.