Clark M,
Have you leveled your mower deck front-to-back? The most common cause for grass streaks between the blades is due to the front of blades being lower than the back. On a flat surface with the blades oriented front-to-back measure the distance between the ground and the blade tips at each end to determine if the blades are level with the ground. You may need to adjust the front deck hangers to get all the blades level with the ground. Additionally if you find one blade off level more that the other two, you may have to put a washer or two under the spindle bearing mountings to get the blade level with the others. Getting a deck leveled can be a time consuming thing to do but once you do it, the streaks will be gone. Also, if you lower your all the way down and let it ride on the ground and you will have streaks as well. The weight of your deck should be supported by the lift on your Cubby, not the rear gage wheels and front roller. Hope this helps.
Have you leveled your mower deck front-to-back? The most common cause for grass streaks between the blades is due to the front of blades being lower than the back. On a flat surface with the blades oriented front-to-back measure the distance between the ground and the blade tips at each end to determine if the blades are level with the ground. You may need to adjust the front deck hangers to get all the blades level with the ground. Additionally if you find one blade off level more that the other two, you may have to put a washer or two under the spindle bearing mountings to get the blade level with the others. Getting a deck leveled can be a time consuming thing to do but once you do it, the streaks will be gone. Also, if you lower your all the way down and let it ride on the ground and you will have streaks as well. The weight of your deck should be supported by the lift on your Cubby, not the rear gage wheels and front roller. Hope this helps.