It is a 42" deck. When I mow, in the center, there is a big difference in the height at which the grass has been cut. When I look at the blades and turn them, each of them, to some degree, turns unevenly... as it turns it raises and lowers, leaving me to believe that the stem where it is attached to the deck is slightly crooked. Is this possible? And, is this repairable? Note: I do know that it has hit its share of rocks (that bent the blades and required blade replacement) over the years.
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Re: 42" deck - uneven mowing in the center
Yes its repairable & yes it can bend the spendle but most likely the blades is it one that does it or both blades or the center or the sides of deck is bent by stepping on the deck let me know if i can further help thanks wade
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first make sure left and right sides are same height. Next, adjust front and back heights per users manual. If still off, make sure you dont have a bent blade or bent or missing front or rear deck link.
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.
There are a couple of causes for this. Is the blade height the same on the new mower? Higher blade height could cause a lot of the grass to be blown out from under the deck, and not into the catcher chute.
On the trailing edge of the mower blades is a small 'wing' for lack of a better term. There are two types of blades, mulching blades that have a lower 'wing', while catcher blades that have a slightly higher 'wing' but it makes a difference.
If the season has been hot lately, the grass may not be growing as fast, hence less clippings, and less dense grass could also cause this.
Mowing the lawn low and hi can only mean where are the adjusters or which is best. The best height for grass is about 2 - inches for my nickle. There is no best - it is to your taste. As for adjustments on your unit they are done with the handle that sets your deck height. Let me know if after reading the instructions you still need help.
Park mower on a level flat surface ( a concrete garage floor is ideal ) lift deck up until you can put a piece of a 2x4 flat underneath the deck and lower deck until it just contacts the 2x4. loosen adjustment nuts or turnbuckles and adjust until the deck just starts to clear the 2x4. this should level your deck. Now , lift the deck and remove the 2x4. put blade height lever on a known cut length and with a tape measure, measure the tips of the blades from the floor to the blade tip...they should all be the same within 1/8 of an inch...if not then you either have a bent blade, bent spindle shaft, or spindle bolts are loose or misaligned. Your deck could be warped too...depending on how hard a lick it took...good luck !!! ;-D
This is Usually Caused by Worn Blades or a Bad Mandral/Blade Spindle Bearing.
Remove the Deck from Under the Mower.
Remove the Deck Belt.
Check the Mandrals/Blade Spindles for Bad Bearings. Do the Sound Rough when you Spin the Pulleys by Hand? Can you Move the Mandralls/Blade Spindles from Side to Side? If Yes, then the Bearing s Require Replacing.
Look At the Tips of the Cutting Edge of the Blades. You will Se the Tips are Rounded and Not Square. This Condition will cause the Strip in the Center of the Deck.
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Please, Do Not Hesitate, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.