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Has anyone ever seen damage like this on 50" MMM blades?

773 Views 9 Replies 8 Participants Last post by  wwxx, 
Mikey4



This set of blades came off a tractor I just bought. The pictures show both ends of them blades. The deck was in nice enough shape apart from very dull blades. I changed blades and when I spooled up the deck I got sparks and clangs. Instant shut down and noticed a deep dent on the side of deck. The old blades didn't hit it, but the new ones did.

Hmm.

I fixed the dent and then went to look at the old blades. That's when I noticed these wrinkles and cracks. I have maybe eight sets of blades on a shelf and four more sets on decks. None have this damage.

Has anyone ever seen this sort of thing?
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S
Looks like someone tried to make a set of high-lift blades...

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gravely1964
steved said:
Looks like someone tried to make a set of high-lift blades...

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Nope normal wear. Common thing to see at a mower shop.


I'll give ya a dump truck load like that if you want them :sidelaugh
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S
The wings are all look like they are bent different...you can't tell if that's wear or hammer marks from the photos.

I had a set of gator blades that the fingers wore clear off, I know what that looks like...

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gravely1964
steved said:
The wings are all look like they are bent different...you can't tell if that's wear or hammer marks from the photos.

I had a set of gator blades that the fingers wore clear off, I know what that looks like...

Sent from my SM-T350 using Tapatalk
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Thats from the the way the grass slowly wears the blades away. They split like the one blade and the high lift fall off. If I see a set like this, right in the scrape pile they go no questions asked
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ATLANTIC CENTRAL
Looks to me like normal wear from cutting in dry, sandy soil.

I replace my blades every year - cheap insurance for good performance.

Sheldon
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F
It's called metal erosion. We see it down here because one of the grasses moves silica thru its stems.
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ggsteve
ATLANTICCENTRAL said:
Looks to me like normal wear from cutting in dry, sandy soil.

I replace my blades every year - cheap insurance for good performance.

Sheldon
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This. I have had blades wear to a point at the end in less than a season because of our sandy soil. It has gotten better over the years as I improve the lawn.
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cadetpwr
Blades will espicaly do this if you mow over lots of loose dirt or sandy soils. The grit in the material basicly sand blasts the wing away. Normal wear, but make sure to turn off the deck when going over any bare ground/dirt/gravel driveway ect. Even if the deck is raised, the dust/grit will get kicked up. Mike
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W
Tis normal, will eventually wear clean thru.

wwxx
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