A row of uncut grass left between blaces when mowing
I recently replaced the blades on my Craftsman LT 1000 riding mower 42'' cut hoping it would fix my problem. It did not. When I mow it leaves a row of unmowed grass down the middle. What is the problem?
Re: A row of uncut grass left between blaces when mowing
THE answer that FINALLY worked for me. Torque the bolt that holds on the blade to the recommended torque specified in your owners manual (for my Exmark this torque is 120 ft-lbs). When I first used the torque wrench, i was quite surprised by the amount of addional force I needed to apply to reach 120 ft-lbs Exmark blades have a round blade hole with a washer and therefore, relies only on friction provided by torquing bolt to the proper torque to prevent slippage so that the blade rotates at the same speed as the spindle. When slippage between the blade and spindle occurs, blade tip speed slows leaving uncut grass. Note: this solution will NOT work for mowers with a blade and spindle design which uses a positive means (e.g., a star shaped hole on the blade) that assures the blade rotates at the same speed as the spindle with no slippage.
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You should be using a up lift blade it will help by sucking up the grass to be cut. You should have an adjust on both sides of the blade deck . As for the strip check to see if you have a wheel behind the mower deck. If you do it might be the cause for mower leaving a strip uncut . Sears has been noted for putting wheels in the path of the blade area and smashing the grass down . That is also why I suggest to use an up draft blade it should **** the grass back up again so you can cut it.
The following steps will make any riding mower cut evenly. 1.The rear tires must be the same diameter i.e. same tread type and the same tire pressure (check it before each mowing). 2.Level the deck following the instructions in the manual and recheck it occasionally 3.Make sure the blade(s) are not damaged and kept sharp, rounded blades tear instead of cut. 4.Make sure the deck and its attachment points are not bent or damaged. 5.Drive at a slow walking speed with the engine at cutting speed. 6.Over lap rows in amounts sufficient to lift and cut the tire tracks from the previous pass. 7.Cut the grass at intervals that ensures you never have cut more than 1/3rd the total length of the grass. 8.Make sure the underside of the deck is clean. 9.Use a blade style that matches the type of grass you most often mow.
the only way to fix it is fit the right blades
they have fitted the wrong blade's to it,,,
the blades should overlap when cutting the grass they cannot crash into each other as there are (timed up) not to do that the new blades they fitted are to short so you have no over lap on the gutters that leaves a strip of grass left uncut between the blades,,
call them out to put this stupid mistake right,,,
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!
OOPS! I hate to tell you but you most likely put new blades on that were too short. Check your manual and get the proper length blades. If you still have the old ones, check them against the new ones and you will see that they are shorter resulting in the uncut grass in the center.
I had the same problem and I already found those recommended solutions\ causes on the web: 1. The
motor isn't on full throttle. 2. The blade is upside down. 3. The grass is
too high when cutting it. 4. Overlap your cuts.
It helped my problem/ I hope it will help yours too!