Mower leaving lines advice

600_RMK_144

Well-known member
There are a few things I would check. Doing all of them rather than just one will ensure everything is up to par. 1) Level the deck front to back & side to side. They have a cheap tool that measures your mower blade heights to confirm they are all at the same height. 2) Tire pressures (often overlooked) - Make sure they are all the same. 3) Sharpen the blades, sounds like you already did this. 4) If none of these take care of it, then lastly I would recommend a new belt. Good luck!
 

m8man

Moderator
I keep about ten acres cut almost weekly all season, normal type stuff. The rest I have a friend knock it down with his tractor. My mower deck has the front lower than the back, not sure if that’s how it’s suppose to be or not. Anyway I tried a few things tonight, cutting super slow and wide open throttle, cutting faster, also thicker or thinner areas and the lines are from between the blades. I have 3 blades that leave two lines. They are t where the tires are either. I basically cut it twice to get the lines out. I’ll figure it out but making me “appreciate the cranberry and goose”
 

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euphoric1

Well-known member
yes, the deck should be lower in front than rear, I favor the high end of spec and set pitch at 3/8 of an inch, that way the leading edge of blade will be cutting the grass, and again thats measuring off of blade tips not deck pan, what's going on there has noting to do with pitch or level
 
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600_RMK_144

Well-known member
Is it a Toro rider by chance? Toro is known for their OEM/ stock blades being too short (particularly their mulching blades), which causes stripes. On mine, I switched out to aftermarket blades. Sitting them side-by-side the aftermarket ones were just a tad longer. Swapping those (along with the other things mentioned earlier) completely eliminated my stripes. I was having to do multiple passes prior to that and it was very annoying!
 

euphoric1

Well-known member
Been with Toro for 30 years, had my own dealership for 11 years, never have I heard of mulching blades being too short, that would be new to me
 

600_RMK_144

Well-known member
Been with Toro for 30 years, had my own dealership for 11 years, never have I heard of mulching blades being too short, that would be new to me
Gets mentioned in my Toro FB groups semi-regular. When stripes are brought up. More-so with the mulching blade. And I can say that it definitely was a thing on my Timecutter SS4225.
 

whitedust

Well-known member
PM Euphoric I’m sure he can eliminate your stripes he knows Toro inside out and keeps my Pos Ariens tractor going with bailing wire and welder.
 
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