[Burchie70]

I have D140 mower and just recently it started leaving a thin strip of grass just inside where the front tire rides. It does it on turns and going straight. The mower blades were new last July and I sharpened them in May and they cut good till a few weeks ago. I pulled the deck off and cleaned all the grass that was stuck in it and resharpened the blades and it still does the same thing. I also put a different blade on that spindle to see if it made a difference. The blades are all the exact same length so they’re not worn. I checked to see if the deck was level and it was. I measured from outside edge of outside blades to the garage floor and it was the same measurement. Any ideas what the fix would be ? Could the deck be bent ? It looks good but running out of ideas. Thanks for any help
Steve

 

[JimR]

Can you post a pic of the grass after making a pass?

 

[Burchie70]

Unfortunately I finished mowing just before I posted this but I can the next time I mow. It looks like something is mushing it down and leaving a 1/2” wide strip but I stopped and backed up and it doesn’t line up with the front tire or deck wheel.

 

[Burchie70]

It lines up with this arrow.

 

[JimR]

I'd prop the machine up so that you can look at the underside of the deck. That's right about the right spot for a clump of dried debris to build up. If there is one there, it may be pushing the grass down preventing the blades from clipping it off. But that's just a guess on my part.

 

[Burchie70]

Ok thanks, I completely cleaned the underside of the deck and even pressure washed it so I’m positive there was no grass stuck underneath. Wonder if a spindle could be going bad ? Not sure why it would leave a strip of grass though

 

[JDJake]

Height of grass? Mulching or non-mulching deck?

 

[Burchie70]

Usually cut the grass 2.5” twice a week with a bagger and high lift blades. Other than the 1/2” strip the rest cuts perfectly.