Hex Nut 90561895

Took off ruined parts & replaced them with the new ones.

Last summer I took the blade off to sharpen. I didn't give enough attention on how the items on the blade/fan shaft went back together, which resulted with the blade not being secure, and untimely being out of balance, which damaged the fan. I decided to replace everything on the blade/fan shaft.
Starting closest to the mower, I replaced the Spacer, no problem there. Next was the Fan, once again, no problem. Followed by the Blade, and it tells you what side should face the ground written right on it. Now, this is the point where you need to pay attention. What is next is called an Insulator followed by another spacer. The insulator has ridges on each side of it, that will straddle the blade on one side, and the metal spacer on the other side. Each have a oval hole in the center and you need to make sure each is pushed far enough on to the shaft to fit snugly on the oval part of the shaft. The tricky part for me was to keep everything lined up and inside of the ridges, plus keeping everything pushed up on the shaft to expose the threads for the Hex Nut to get started. Once the Hex Nut is started, the only thing you need to do at that point is to make sure everything stays lined up as you tighten the Hex Nut. As you tighten Hex Nut, and the blade and insulator and the metal spacer become not aligned, loosen the Hex Nut enough to get everything back in line and start tightening again. Hope this helps.

Watched YouTube and followed the example. Worked perfectly. So glad ReplacementParts had exactly what I needed...for a five year old mower, no less!

Removed the fan, spacers and blade and associated components on the shaft, and replaced them all in the reverse sequence from which they were removed. Only needed one wrench to do the job.

Side note: I was ready to throw the mower away during the annual citywide curbside pickup day, until I took one last look. All 6 parts I needed to replace were easily found on eReplacementParts.

This mower should be good for another 15 years!

Very pleased!

1. Turned mower up side down.
2. Removed existing hex nut and removed old blade.
3. Lost hex nut.
4. Order new blade and hex nut.
5. Received parts BEFORE promised delivery date!
6. Installed new blade and secured with new hex nut.
7. Mowed the lawn.

Removed bolt holding blade and removed: blade, fan and blade spacer.
Installed new blade spacer, fan, blade, and hex nut.
Done! Super easy, and the parts were perfect. Should have done this years ago.

Installed the new blade, then the insulator, then the spacer, then tightened the nut on the spindle

Screwed the nut on.

Removed and replace all parts of the blade shaft.