My new 54" cut husgvarna is leaving grass streaks in the middle of the mowing deck. have to mow over area at least twice to eliminate the streaks. does anyone have a similiar problem or a solution to the problem
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Re: leaving streaks of grass in middle of mower
Your forward speed may be too fast for the mower blades to cut every blade of grass. It may be new, but check the deck to see if there are any dents pushing the quill assemblies up making the deck cut uneven. Or it may have the wrong blades on it. I have seen this problem in the past with a Gravely mower. The person was trying to cut grass to fast. He sold the unit and the new onwer did not noticed any the problems the old owner described.
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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!
jack the tractor (using a tractor jack) or remove the deck, measure the blade tips against each other where they meet in the center of the deck and see if they are the same tip to tip. Bearing wear, a bent deck or blade can make them cut at different heights in the center.
Possibly blades need to be sharpened.also,you may be trveling too fast.only the first inch or two of the blades do the cutting.if the grass is higher than average,and you travel too fast,and the blades are dull,the unit cannot keep up with the rat of grass it has to cut every millisecond.hope this is useful.if it persistz,try being more specific and i will try again.i am a certified small engine mech.thanks,bart
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.
This can be happening from a couple of reasons, first if your grass is too damp this will happen with almost any mower, wait till the lawn dries out before cutting, you may be cutting the lawn when it is too high, try cutting it twice a week maybe this will help, you may try to raise the cut setting eliminating the amount of grass clippings that you have accumulated, if you are mulching or using the bag be sure the chute is clear, and lastly be sure you are running at a higher speed to push through the terrain.
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!