Mowing Toro 71184 (4900001-4999999)(1994) Lawn Tractor not cutting grass evenly

[blockcop1]

My Toro 71184 (1994) Lawn Tractor is not cutting grass evenly. This is a 38 inch dual mulcher. It leaves an area in the middle of the cutting area. I've changed blades and belt. It seems like it is not spinning fast enough I'm thinking. Should I change pulley, the spindle assembly, the spindle shaft or what??????Help anyone....Thanks......

 

[eddie48]

The first thing I would do, assuming that the blades are the correct blades of the correct length, is to check the tilt of the deck from front to rear. With everything shut off and the deck in the normal mowing height, blade straight forward, mower on a flat surface, take a small block of wood (like a 2x4 short peice)keep it firmly on the ground and rub it against the cutting edge of the blade on both ends of the blade. Compare the two marks the blade makes on the wood. The front of the deck should be just slightly lower than the rear. Do this for both blades. If there is a large difference in height from front to rear, that can leave an uncut area in the center and on both edges. If that is not the problem, I would look for a bent deck or broken spindle.