Hi, Wayne here from Sears PartsDirect. Today we’re going to level the mower deck
on a riding lawn mower. If your mower deck isn’t level, your lawn
could end up with an uneven cut, resembling slanted steps. That’s because the blades will shave the
grass short on the lower side and leave the grass tall on the other side. To level the deck on your riding mower, you
need a wrench set and a ruler. You also need a tire pressure gauge and air
supply so you can inflate the tires evenly before checking the levelness. Wear work gloves during the procedure to protect
your hands. Park the mower on a level surface and set
the parking brake. Raise the deck to its highest position and
disengage the cutting blades. Shut off the engine and remove the key from
the ignition. Inflate all tires to their recommended pressures,
so they’re at the same pressure on both sides of the mower. Uneven tire pressure can mimic an uneven mower
deck, causing an uneven cut. First, we’ll level the deck side to side. Position both cutting blades side to side
and measure the height of each outside blade tip. The heights should be within 1/8-inch. If not, turn the lift link adjustment nut
clockwise to raise the left side of the deck or counterclockwise to lower it. Each full turn adjusts the left-side deck
height by about 3/16-inch. Recheck the blade height measurements and
continue to adjust the lift link adjustment nut until blade tip heights are within 1/8-inch. Now that we’ve leveled the deck side to
side, we’ll check deck leveling from front to back. Position a cutting blade front to back and
measure each blade tip height. The front blade tip should be 1/8-inch to
1/2-inch lower than the rear blade tip. To adjust, loosen the jam nut and then turn
the front link adjustment nut clockwise to raise the front of the mower deck or counterclockwise
to lower it. Each full turn of the nut adjusts deck height
by 1/8-inch. Recheck the blade height measurements after
adjustment and continue to adjust the front link adjustment nut until the front blade
tip is 1/8-inch to 1/2 inch lower than the rear blade tip. Hold the adjustment nut with one wrench and
tighten the jam nut with a second wrench. That’s it. You’ve just leveled your mower deck side to
side and front to back. Now, you can now get back to mowing without
worrying about an uneven lawn. I hope this video helped you out today. Check out our other videos here on the Sears
PartsDirect YouTube channel. Subscribe and we’ll let you know when we
post new ones.