Assuming the obvious that the motor is turning, the only thing that would keep it from cutting is that the nut holding the blade is not tight enough or the sping washer between the nut and the blade is missing or on backwards. The correct orientation of the spring washer is so the inside surface around the hole contacts the nut, and the outside circumfrance of the washer contacts the blade. P.S. the nut is tightened very tight.
SOURCE: 18 hp craftsman 2 44 inch cut engine dies when blades engage.
HI
Check wires going to safety switch under seat.
SOURCE: Craftsman 18.5 riding mower when I engage the
craftsman decks have a positive stop adjustment for the decks. A spring atached to the blade ingadgement arm pulls the tension pully into position if the cable is rusted inside the sleeve it wont put enough pull on the ingadgment pully and thus the blades dont spin full force the belts on the mowers have no adjustments only the pully . second thing is you may want to drop the deck and clean around that pully by scraping any rust off the surface under the pullys slide good luck
SOURCE: have to overlap about half my cutting deck to get clean cut.
A: Is the blade on right?
B: Is the belt on the pulley?
C: Is the blade tight on the spindle?
D: Does the spindle turn freely with the belt off?
I can't think of any other possibilities
SOURCE: one blade on deck gives an uneven cut
Hi..my name is Keith..and most times..when your problem happens..either the deck is bent down from runing into something or stepping on it..or the deck hanger is bent, worn or out of adjustment..or the blade on that side is bent..and i hope this will help..if not..please write back
SOURCE: blades won't disengage
I would check to make sure you have the correct belt first.There is usually a belt dioagram in the manual and on a sticker on the mower.Then check the idler pivot bracket to make sure it is moving freely to allow the belt to loosen also there is a small spring p/n 169022 that pulls the idler pulley back to disengage the belt when you release the engage lever its is about 1/2 inch by 3 inches long on the center of the deck.Also there are 2 brake cams that lift the brakes off the pulleys make sure they are lubed with wd-40 where the roll across the idle plate,and make sure the idler plat does nat have a worn spot on it where the cam roller rides on it.
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