Reply. Most premium mowers today go to 4" or higher. Vicki McKenty says: August 4, 2016 at 2:55 pm. Sears came to my house and said that this is a known issue. For the past week or so my riding mower refuses to cut grass. The Effects of Cutting the Lawn Too Short A lawn of dense turf grass shorn to a uniform one to two inches is a beautiful thing to behold—for a little while, anyway. If the mower keeps shutting off when you cut thick areas of grass, make sure the mower height is not set too low. the blade is new, and put on right. Improper Oil Level; Both the high and low crankcase oil levels will contribute to mower’s power loss. My mower is the same exact model, it also mows very very low on the highest setting, been that way since bought it new. Why is my Craftsman riding mower cutting low on one side and high on the other? 3 Check the tire pressure and inflate your tires if they are low. Do not change the throttle control from the full throttle position. Some warmer-season grasses may be cut shorter, but too short can damage the lawn beyond just scalping. What else could be causing this uneven cut? But now, I cut on #4 or #5 because my deck is so much higher off the ground. Now, my 2006 Sears/Craftsman YS4500, 20HP 42” deck mower can mow at very high heights, and I can go over roots and objects that protrude from the yard with ease. Jamie. Sounds like the front might be too low. When the oil level is low there will be less oil to lubricate all the moving parts of the engine. When setting the cutting height on six the actual height of the cut is only about 2 1/2 inches. The previous two answers are both good, but I had a mower doing the same thing and found that my blade was bent causing it to cut unevenly. It is the same height in the front as it is in the back.It is a mulching lawn mower. My 42" Craftsman riding mower cuts closer on one side than the other and it looks so bad I'm reluctant to mow. There's nothing you can reasonably do about it. 7 Answers. I see the HRR only goes to 3 1/4" - this would be a deal-killer for me. Whatever the reasons, lose some weight from it and recheck the capacity of the mower again. I have a lot of scalpng at the six setting onslightly uneven terraine and the sun raises cane with the health of the grass. I replaced the blade and that took care of the problem. Before doing these mods, I would never dream of cutting at any setting other than the highest setting / #6. Many mowers have wheel levers at each of the mower's four wheels, or another way to adjust the mower height. Stop the mower engine, raise the height and resume mowing. I've carefully checked the tire pressure and adjusted the deck height side to side and front to back, twice now. 1 decade ago. Answer Save. The problem is that this kind of mowing puts an enormous amount of stress on the turf. Now it is going thru mower belts very very quickly, it does have at least 1 of the pulleys that is bent alittle bit. Following is a list of cutting problems, which may be encountered with twin blade mowers and possible solutions. I'm using new blades, I mow at full throttle and I don't go very fast. Can I remove the pulley and turn it over, OR do I need to replace the pulley. The mower deck sits way too low. Grass should be relatively dry when cutting and a moderate ground speed selected. It's a 2010. Guess I like my New Holland withthe hydraulic lift for mower to well. This too can affect the quality of cut. Cutting height is one of the primary considerations in a mower purchase. Use the transmission to select the speed. Favorite Answer. 1. The blades spin fine on the driveway but quit when I hit the lawn. Ken: My MTD deck on my Craftsman LT200 cuts too low in the highest position and actually hits the ground in the lowest position. Relevance. 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