Adjustable height issues, possible part fix/replacement...

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So this is a discussion in a few threads and I also posted this in my mower review area.  3 is too long to maintain healthy bermuda here in south carolina, and 2 is too short right now in the heat.  The thing is with this grass, the lower you can cut it and maintain a green, the thicker and healthier it grows.  If you mow it tall, it thins out, starts reaching for light, and has issues.

The problem is just a lack of settings on this mower, so I see a possible few "modifications" I can do, but obviously will not discuss the dremmel work as that would void the warranty and that would never be something we would never do....

But I see a need for a new height insert.  I haven't torn the mower apart, but it seems like the metal bracket that hold the bar/spring may be field replaceable.  I feel possibly a nut spinning on the inside, but that's something to research later.

So what I'm asking for (and would be very willing to test or might end up making myself) is a "southern lawn" insert.  It should focus on the lower section of the settings, use a thicker metal plate, which in turn would allow you to only have 3-4mm of of needed metal to hold the adjuster lever in place.  Right now there is 6.5-10mm.  Additionally with a slight flattening of the rounded bar, you could secure a bit more clearance.

In short, you could easily get another 2-3 settings, possibly double what exist today, with the right design.

Difference between 2 and 3, I need a 2.5ish.



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Eric

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Posted 5 years ago

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David Cline

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Great explanation of this issue Eric--the pictures really help to illustrate the problem!

I have the exact same issue here in the Atlanta area, but beyond damaging the grass cutting on the 2nd height setting also causes the mower to overload and shut off frequently if the grass is not totally dry.  The only solution I have found is to mow our 7,000 sq ft yard every 2-3 days.

The other solution I thought of is to add a 1/4" stainless spacer ring behind the blade mounting plate, and then replace the bolt with one 1/4" longer:


Supposedly the cutting height on the 2nd setting is 1.8" and the 3rd cutting height is 2.4" so a 1/4" spacer should make the 3rd height cut around 2.1".

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David Cline

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UPDATE:

I removed the blade plate and added two M16 flat washers (1.18" OD) on the spindle.  As you can see the first is mostly recessed so the washers have to be very thin, but with at least a 16mm ID to fit over the spindle.

The washers push the blade plate slightly beyond the end of the spindle, but because it is so deep this is a minor issue.  I did replace the original M10-1.5 x 25 bolt with a slightly longer M10-1.5 x 30 to offset the washers and ensure there is sufficient thread to hold the blade on.

Couldn't get the M10 washer off the original bolt, so I had to replace it as well.  The washers I used as spacers are zinc, but the bolt and washer are stainless steel.  The hardware store recommended using class 8 strength for this application.

With this modification, the cutting height is exactly even with the bottom lip of the deck, about 1/4" below the original height.

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Eric

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Yes, I was having shutdown issues as well, probably 3-4 times (which it has never done before).  Good point.
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David Cline

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Hypothetically speaking, if one were to mow a lawn like mine with the modification I posted above, they would be very pleased with the result.

Not only would the orange overload indicator not go off a single time, but the entire yard could be mowed on a single charge for the first time ever, and with no shut-offs the entire time. They would also find that there is much better mulching performance and significantly less grass buildup.

Basically, in addition to cutting a southern lawn at the perfect height, this modification also makes the mower perform much better all around—hypothetically speaking, of course.
(Edited)
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SCDC, Champion

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I love the idea, but concerned that the washers may overheat and "self-weld" to the motor or each other.  Possible fire hazard?  I don't know.  The factory mount doesn't come in contact with the top part of the motor, the washers do.  I do want that extra 1/2" cut, but would rather do it by maybe bending the blade a tad.  Don't know.  I'm scared to talk about anything on these forums now, because according to the EGO Rep, ANY modification voids the warranty.  In their exact words.
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David Cline

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Yes, this was a concern of mine as well. To be safe, I would use 2-3 washers with a healthy coating of lubricant between each.

The original poster's suggestion about a premium height plate with more height options is likely the best permanent solution. Any of us could sketch a schematic, but someone with access to custom metal fabrication would have to produce the prototype. I would think this wouldn't cost more than a blade and could easily be owner-installed as an accessory.

Hopefully if Ego doesn't produce this part by next Summer an opportunistic third party will come out with one. And a premium mulching blade too.
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SCDC, Champion

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I wonder if EGO could do this and sell the piece.  It would not put the blade below the deck (safety) and it would be a solid and secure piece of metal.  Walla.  Insta-fix for us Warm Weather grass folks.

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James C Lanzafane

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Might you try different diameter wheels? MUCH safer alternative to toying with blade spacers.
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Rob

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We've been trying to get larger diameter wheels out of Ego for what must be more than a year now. Never happened. Now that the deck on my mower seems to have lowered in height, I really need something to help with that.

I usually cut my lawn on the highest setting.. this week, I took it only 1 slot down and the mower struggled badly. Mind you, I sometimes cut my lawn twice a week.
(Edited)
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Jacob

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Send it in for warranty this winter.. i am. I have a few things needing repair.
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Rob

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I may do that but it will have to wait until may after thanksgiving since I usually cut grass at least that long.
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Jacob

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Yep.. thats when im sending mine in too rob. Probably going to get a new mower out of it. Lol. Mine is preeeeeety worn out. Its tires are even showing signs of wear.
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Exrace

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Would be easy to fabricate an insert to use in the lift assembly. I have no issues with the heights but if I did that is the direction I would go. I would not mess with the mounting of the blade IMHO. I like my feet!
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Ed D

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Did anyone ever produce the extended length blade mount (above in picture)? Or did anyone find smaller diameter wheels for the Ego?
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Pantheon

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I have zoysia grass here in Tennessee and mowing on the highest setting is definitely too low (LM2000-S). I purchased larger wheels at Home Depot but they did not have an inner metal bearing to mount on the wheel shaft. I even removed the tires from those plastic rims and attempted to place them around the original Ego tires. The back tires fit nicely into the larger tires. But I feel they would slip off during turning. The front tires would not fit inside the 8 inch tires. I just need 1/2 to 1 inch increase in mowing height. I even looked at modifying the lift mechanism but a hard-stop prevented any further elevation. I would LOVE to see larger front and rear tires from Ego to address this issue. I completely understand that larger tires might interfere with lower settings. But I do not ever see mowing at a lower setting.