I have a 46 inch riding mower, Model 247.203790. The lawn care people keep telling me to raise my cutting blades to a height of 4 to 5 inches, preferably 5 inches. I have adjusted mine according to the manual, raising them up as high as I can. Once the blades are at their highest setting, I then level them up side to side and the most I can get is 3 to 3 1/8 inches. Is there a way to get them up higher?
Make sure tires are properly inflated. Underinflation can cause a big difference in cutting height. Also, cut your grass to satisfy yourself. There is not standard height for mowing. After a few mowing's you will know!