Snow blade not going low enough?
 

Hmmm... if I put the blade all the way down, it's still 1/2" off the ground. I don't see any easy adjustment. What am I missing? The feet/shoes are off the ground too. The cam isn't touching either. Oh man, I just realized I bet it's my tri-rib tires are so tall. What can I do? Maybe a spacer plate between plow and the lift eye mount?

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I never tried this, but what if you remove the height adjustment cam on the side altogether? Just unscrew the knob all the way and take it out.

Loosen the 3 bolts on the blade bracket and see if it drops a little, then tighten them back up. I did this to do the opposite and get mine to lift higher.

Edit: If that doesn't do it, use a piece of chain for the lift rod temporarily. Then make a longer lift rod.

Extend the Lift Rod, or make a new one that is longer.

I'm off to the garage.... if that doesn't work, I can try spacing it up 1/2", maybe with some extra nuts for now. I don't want to make the slot longer where the raising rod goes, I think that would be too hard by hand with a grinding wheel.

I honestly do that with every manual lift that comes into my shop. They seem to have the nasty, annoying habit of coming loose and preventing my blade from lowering at the worst times. I've got a stack of 3 or 4 of those hanging on my shop wall.

I'd be careful with that. Just be watchful, that the cylinder doesn't "bottom out" too hard.

Would it make much of a difference in height if you temporarily dropped the air pressure in the tri-ribs?

I'd start with a new cutting edge.
That one looks to be about gone and soon you will be into the bolts (if not already) and the reinforcecment on the backside that they go through.

Get yourself a piece of 3/16" or better yet 1/4" X 3" flat and break out your drill press! May cost about $10 or more if Ya use new bolts, BTDT

Good Luck

PS I wouldn't screw up the original blade bracket, that one looks to be for an 82 series attatchment.

Shrewcub was right! I loosened the three main bolts on the lift eye and the blade dropped right on down. I tightened it up and it's good to go!

When the blade is all the way down, the left arm under the tractor is hitting the arm that would raise the deck. It looks like I need to bend the arm inward a little bit, but I can't do that with the blade on the tractor. Future project.

What do you mean it's an "82" attachment on the blade?

I'll add the new scraper blade to my to-do list for the tractor.