Help!!

Yeah, I know. An old guy like me really ought to know this. :>(

Mother's little lawn mower needs new blades and at $60 a set, I wanna make darned sure I'm ordering the right ones.

Are those nuts that hold the goofy things on left handed threads 'er somethin'?

Darned if I can bust 'em loose......

Allan

need more information what are you working on???
I dont recall any mowers that I have worked on being left hand thread on the blades.
try cutting a block of scrap 2"x4" wedge it between the deck and blade to keep the shaft from spinning, you can get more torque this way, also add some Penetrating oil to the bolts.

Many are. The threads loosen in the direction the blade rotates on most mowers. It keeps the blade from loosening while mowing.
A few models have a lock tab or other device.

If you do not remove the blades regularly for sharpening, the easiest way to remove the nuts/bolts is with an impact wrench.

Dean

My old Toro Grassking has a lefthanded nut. Try your air impact wrench turning it cw. Hal

Quite a few will have left handed threads. Do you have access to an online parts list? Look at the part description of the NUT and see if it says LH thread. That may help. I've always had good luck loosening them w/1/2" impact wrench.

All ways remember ,LEFTY LOSSE: RIGHTY TIGHTY: I KNOW IT SOUNDS STUPID But it helps to remember this. Some times you might see a letter L {LEFT} stamped In the end of the bolt or even a R {RIGHT}. You may see this more so on
Your older Ford trucks. I do agree with using a impact air or airless gun it makes it a lot easyer.
JR.FRYE

get a piece of pipe that will slip over the blade and stick it through the discharge side over the blade then turn it like a right hand bolt most are.

what ya got for mower,get them for you if that helps have some hardly used ones on e some used units been parting out also if that helps. for that price they must be 3n1 blades otherwise they around 40 dollars for 3.

Woods deck on a IH 284? Try this site.

www.external_link/Woods/1154.aspx

Impact Wrench, nothing else gos in my Cub Cadet.

Gordo

I ALWAYS use my impact and a 6 point socket, bump them each direction a bit will let ya know if they are left handers. Of course, theres always the Hot Wrench, but I cant envision them so tight an air impact wont take them to their milk.

John T

Are there any threads beyond the nut? If so trace them to find which way to loosen. The direction of rotation from the top should tighten them.

Look at the sharpened side of the blade to figure out if they turn clockwise or counter. The nut will loosen in that direction. That design insures torque from spinning will be in the direction of tightening the nuts.

Have an IH 184 tractor with IH 60 inch mower deck, and all three blade spindles are right hand thread. I always use never seize on the threads an still they are sometimes a bugger to get off with the impact gun.
Joe

Depends on the lawn mower but 99% of the time no they are right handed because the blade spins so as to keep them tight. One of my side line hobbies is working on and repairing lawn mowers and other small engine stuff. Also at one time I did in fact work full time at a lawn mower repair shop. What brand mower is it and do you have pictures of the blades?? If you do I might be able to save you a few $$ since I have probably 50 or so blades laying around from all the junk mowers I have plus just went to an auction and pickld up a box of bladesas in 20 or so cheap

Some are left hand threads. On some mowers you have to take the belt cover off and hold the shaft at the top so you can loosen the blades. Dave

This post brings something to mind...bought a used Woods RM-59 finish mower and it could use new blades. Went to local place that sold generic stuff. They had the right size new blades for about five bucks apiece...but, they turned the wrong direction. Went to a dealer that sold Woods products....and they were forty five bucks for a set of three. The manufacturer made them run backwards so the generics wouldn't work, (read propietary) and with a left handed threaded bolt holding them on. I bought the new set and started mowing a place where it was awful rough on new blades. I know some don't approve of my next move but, I cut a piece about three inches long from a new push mower blade and welded it on in place of a cutting edge on the old blades...and sharpened it up and tried it. It shook the machine so, I took them off and static balanced them on a nail...after all, I was mowing where no one was near this supposedly dangerous rig (but me)and they hung right in there...I am not dead yet! But, I am what I consider a "good welder". I used eighth inch 7018 rod (DCR polarity)and one bead top and one bead bottom...they have held up for years. I don't recommend that everyone run out and do this cause it is dangerous...and someone could eventually get hurt or maybe killed...just wanted you to know it seems to be possible...IF you are a good welder WITH some good luck...and NO ONE is anyways near the mowing operation...AND you don't have new tires on your tractor...smile! You're on your own on this one. AND I'll get a lot of flak saying I probably shouldn't have even posted this. OR, have the post removed. I must be having a senior moment. Well, here I go getting my intelligence sized up. ohfred

Allan As a rule most of the under deck mowers seem to be right headed while most pull behine
finish mowers use a left hand bolt , stud, or nut..All depends on the rotation of the blades..MOST time I have seen some that did not conform to the above..