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My 728 Broadmoor has been grinding when shifting the tranny into any gear 1,2,3 and even reverse. I have tried adjusting the set collar according the the manual but it still grinds. Anything else that I can check/adjust. Thanks.

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Are all your belt guides in place they should each be about 1/8" from the belt. Beleive it or not those little wire guides too play an important part in stopping the belt. Be aware very few belts stop instantly so all older tractors grind a little if you try to shift in a hurry. After you check all the guides and make sure all the linkages move freely, when you try to shift, wait a split second after you put in the clutch before you try to change gears. See if this helps.

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