My mower continually leaves single, uncut blades of grass. I have tried mowing more slowly, had the blade of the mower sharpened. I am sure to mow when the lawn is dry, but still I am left with uncut blades of grass sticking up everywhere. My lawn is St. Augustine.
I had the same problem and I already found those recommended solutions\ causes on the web: 1. The
motor isn't on full throttle. 2. The blade is upside down. 3. The grass is
too high when cutting it. 4. Overlap your cuts.
It helped my problem/ I hope it will help yours too!
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The likely cause of this is that the grass is too high for your mowers deck. You should try just mowing about 1/3 of the blade at a time (if you can) until you reach your desired length, so if you grass is 6" high, only take off about 2" at first to reduce the stress on your mower. Set your mower deck to it's highest setting and give it a shot.
Also, be sure that the blades are sharp, and if you don't have mulching blades, you should get some! Grass this high will leave long clippings on the lawn which can suffocate the grass, mulching blades will chop up the clippings into smaller pieces, which is beneficial for your lawn!
Finally, make sure you aren't mowing wet grass. If you mow when the grass is wet the clippings can stick together and clump up under the mowing deck which will cause excess strain to the mower and maybe even cause it to shut off.
If none of this works, you may want to use a string trimmer to remove the first two inches of your grass and then continue mowing as normal!
You should be using a up lift blade it will help by sucking up the grass to be cut. You should have an adjust on both sides of the blade deck . As for the strip check to see if you have a wheel behind the mower deck. If you do it might be the cause for mower leaving a strip uncut . Sears has been noted for putting wheels in the path of the blade area and smashing the grass down . That is also why I suggest to use an up draft blade it should **** the grass back up again so you can cut it.
There are a couple of things going on here. First, the blades are likely worn out and need replaced. As they wear and loose some length they can leave a trail. Second, if you have regular blades on a deck configured (by having discharge plugged) for mulching and you are using regular blades, then you can have a problem with build up. Third, you can have clumping problems if the grass is not dry when you are mowing.
I had the same. design of the deck is not good. grass will build up and insolate (like a donut) the blade from cutting the immediate blades. FIX - replace custom blades with "Gator Blades and the claws will free up the cluster of interferances of grass, kick it out, thus allowing the blade free space to cut the immediates blades of grass.
Hope this helps as it was my last trial of fixes. IT DOES WORK.
Check your spindle shafts for loose play. If your bearings are worn out and sloppy, the belts pull the spindle to one side and an angle cut results... close cut grass at outer edge and high in center will leave this grass trail you are describing. I'd replace the bearings next year for sure.
I hope this helps... Good luck!