Zero Turn Leaving Streaks

[jay3534]

I have a husqvarna zth 6123 that is leaving streaks when I mow. Tried brand name blades instead of generic and no change. Air in tires is correct / no changes made except blades / deck is level. Any body have ideas?

Thanks

 

[Fuddy1952]

Something has to be off to do that. When I sharpen blades on my two mowers I always stack them together to be sure they're the same. Oregon makes a height gauge, about $10, with mower on flat level allows you to check front to back and side height.

 

[mikester]

I have a husqvarna zth 6123 that is leaving streaks when I mow. Tried brand name blades instead of generic and no change. Air in tires is correct / no changes made except blades / deck is level. Any body have ideas?

Thanks

Scrape the bottom of your deck clean and the streaks will disappear.

 

[jay3534]

thank you for replies / will look at both suggestions

 

[TractorGuy]

Also make sure all blade tips are at the same height. Bad spindle bearings can cause the shaft to run crooked.

 

[Maxify55]

Try greasing the spindles

You've probably spun or blown a bearing.

Tap the old bearings and races out.
Then reinstall shielded (ZZ rated) bearings.

You'll never change them again.

 

[ovrszd]

Hmmmm,,, if he leveled the deck using blade tip measurements wouldn't a bad bearing be detected? Or overcome?

 

[JerryK]

Installing one or more of the blades upside down could do it. It sounds stupid... but all it takes is a few seconds of mind wandering when you are installing them. I have even done it once.

 

[ovrszd]

Installing one or more of the blades upside down could do it. It sounds stupid... but all it takes is a few seconds of mind wandering when you are installing them. I have even done it once.

My elderly neighbor did. His wife asked if I could look at it.... i felt so bad for him. I played it off as no big deal and swapped them. I felt so bad for him....

 

[Fuddy1952]

Ok...we're on vacation but I just thought of something simple and easy to do, and cheap (which is the best). Matter of fact I'll do it at home! 1) park mower on flat level area...asphalt/concrete 2) with ruler measure deck...front,back,left,right. Maybe try at different deck heights so you verify deck is ok. 3)place all 4 wheels on identical blocks. 4) then you can reach under, wiggle blades (bearings ok?). Then rotate blades by hand and front/back/left/right they all have to be the same. You could simply cut a scrap stick of wood as a guide.
Only thing is be 100% sure mower is raised same all around and safe...can't slip off blocks.