So, if the blade cuts grass turning to the right, as before, it’s likely a regular right-hand thread (left to loosen). However, a left-hand thread is common on some lawn tractor mowers. The same idea applies to twin-blade tractor mowers. To loosen a right-hand thread, you turn it to the left. Simple, if the blade is designed to cut turning right (viewed from above), then it will be a right-hand thread this is the most common type. Only some large twin blades walk-behind mowers and some lawn tractor mowers are likely to have one only left-hand threaded blade bolt the other bolt will be a regular right-hand thread. These bolts are usually over-tightened, and when you add corrosion, removing them can be a headache. Mower blade bolts should be torqued to spec. “Sharpening a mower blade video” Blade Bolt Torque I cover all you need to know pretty well in this post, but if you need more help, check out the following videos: That means, to loosen the bolt, you turn it to the left. All single-blade walk-behind mowers will have what’s known as a right-hand thread. The slipping protects the engine from serious damage associated with a curbstone strike.Īlso common is turning the bolt the wrong way hey, it could happen to a bishop.
That’s because they’re designed to slip if they hit a solid object. Over-tightening is common. Mower blades are designed to be tightened to a specific torque, which isn’t as tight as you might expect.
Some of these options may not suit you it’ll depend on what tools you have available. You may not have an impact, so I’ll show you a few different options. The easiest way to remove a stuck blade bolt is with an impact tool they make the whole job look easy.
Usually, it’s a combination of rust and over-tightening. The blade bolt can be stuck for a few different reasons. I know the feeling, FRUSTRATION!!! but we’ll get it figured out.
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