The blade mount on the mower needs a rework

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  • Updated 4 years ago
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  • (Edited)
I got a replacement mower, it is one manufactured in 2014 and has the venting plate on the bottom for the motor, while my older manufactured in 2013 didn't.  Now, I went to do a blade sharpening as usual and found that it isn't so quick anymore.  I unscrewed the bolt, it had a plastic washer that has to go on the screw?  I said OK, no problem.  Took the blade off and sharpened it.  When putting it back on, instead of the easy notches to line up which usually hold the blade in the proper position for me, no way to make a mistake, and putting in the screw, I had to hold the blade on a very small lip of the half-moon cut on the shaft, align the washer just right to go on that half moon, then hold both until the bolt was snug.

Now, this isn't a big deal, but it seemed far too cumbersome for a person who likes to sharpen their blade weekly.  From a 10 second removal, 20 second mount job into a 10 second removal and a few minutes of keeping things aligned mount job.

In summary to the EGO engineers, do away with the half moon cut in the shaft and put the 2 notches back, please.  I don't like having to hold the blade on that tiny lip and I see where some people could easily mount the blade thinking it was on the lip, only to have spin freely and frankly could cause damage to the mower.  I guess this could be called a safety idea?
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Posted 4 years ago

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David Cline

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Can you post a pic? I am curious what was changed but am more of a visual person.
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David, I'll do better, I'll post a video tonight.
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So does the blade interface differently, meaning, did they change the features in the blade?

This is the current blade, large center circle, small outer circle and small outer D shape circle:
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It still has the 2 outer holes, now I'm wondering about the center hole.  Man, I can't wait to get home.  The outer 2 holes serve no purpose now, which I actually liked them.  Come to think of it, I believe you can put the blade on upside down now.  A few more hours and I'll go home and make a quick video.

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The blade is the same, mounting is a bit goofy.  Would be easy to lose that washer!  On the plus side after watching this, if the blade hits something hard, I think the blade would spin rather than bend the shaft.  It may be for the better.  Just do not over tighten.  I have never had a problem with just "snugging" it up.  Trying to loosen the blade from the factory for the first time was very difficult.  It also doesn't hurt to spray some "WD40" on the bolt to keep it from seizing from heat or corrosion/dirt.

(Edited)
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Paul

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It looks like the main difference is the piece that they added to cover up the exposed hole that is in my first revision of the mower. I bet if you took that off, the same half-moon nut is exposed for the mower blade to slide over. 
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I'll just have to take a look!  BTW, if you see it in the video above, I'm not flipping off the community.  It's always been an easy finger to point with.
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David Cline

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The half moon and round pegs that the blade sits on in the original design are actually part of a T-shaped metal part that slides over the center spindle and provides the backing support for the blade. I am guessing that this piece is replaced with the white cover in the revised version.

Perhaps someone with the new version can check and confirm or refute my theory.
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Blue, as a side note.  I didn't know the vent spins with the motor.  That's a good thing.  With the pictures it looked more like a protective shield.  Guess it also provides some air to the motor.  Maybe accounts for the 5 more minutes of run time.  Cooler motor.
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Steve Valdes

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I agree that this is more awkward. I guess this might allow for other OEM blades to be used. 
On another note...
I just received a replacement mower and have found that after 2 weeks the motor is running rough; like it seems out of balance. We use these mowers daily (and sharpen blades daily) for our mowing business and haven't had this problem before. We also don't recall hitting anything we shouldn't have...only the odd bit of gravel. I have tried various blades with the same results so it's not one out of balance. Any thoughts?
Happy Canada Day & July 4th y'all.
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David Cline

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Good point about non-OEM blades, that is potentially a big plus since no 3rd party (that I'm aware of) has made one that fits the original design yet.

My first guess would be the cover somehow having warped or gotten out of balance, since it spins as well. Especially if it replaced the fairly heavy metal piece that held the blade in the original design.

But since I haven't used a mower with the updated design, I'll have to defer to others who have.
(Edited)
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Denise C

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Hi Steve! I am going to give you a call shortly to assist you with this latest issue you are having with your mower.
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SCDC, nice video! Demonstrates what you were talking about perfectly.

I have to agree 100%, the new design would allow the motor to spin freely instead of bending the shaft if the blade were to hit something solid. Funny enough, this is the reason your first mower died.