Most lawn mower blades rotate in a clockwise direction (counter-clockwise when viewed from below), and as such have the cutting edge on the right side. If you are unsure of how your mower rotates, check the position of the discharge chute; if it is on the right side angled back, the blade turns clockwise.
Which way do blades go on?
When installing a new blade, make sure the teeth are pointing downward to enable a clean cut through the workpiece. Upward-facing teeth can cause a severe injury to the operator.
Are lawn mower blades reverse thread?
Most lawnmower blade nuts are reverse-threaded in order to secure the blade on the drive shaft of the engine. This ensures that the blade’s rotation does not loosen the nut. However, not all blades use a reverse-threaded nut to secure them to the engine’s drive shaft.
Which side of mulching blade goes up?
Look at both sides of the mulching blade. Most blades have the word “bottom” stamped on them, or they have a model number imprinted onto the underside. Whether a word or a number, that side of the mulching blade must face the ground after it is installed and the mower is standing upright.
Why does my mower cut better when I pull it backwards?
A push model that mows grass better when pulled in reverse than pushed forward may need to be sharpened. The forward motion of the wheels is what turns the interlocking blades and, when operated in reverse, the blades turn in reverse. … Have your mower professionally sharpened to ensure the issue is resolved.
Are lawn mower blade right or left hand thread?
The overwhelming majority of mower blade retainers (almost all are bolts) are normal right hand thread. The best indicator that the method of retaining the blade(s) might deviate from the norm would be found in the side which the grass is discharged from the mower deck.
Which way do you loosen a nut on a lawn mower blade?
Put a wrench socket of the correct size on the head of the bolt securing the blade to the blade holder, and apply force to the wrench handle in the counterclockwise direction to loosen the blade bolt. The bolt may have a 1/2-inch, 5/8-inch or 3/4-inch head, depending on mower model.
Which side of mower blade faces down?
To determine which side of your lawn mower blade is up, first figure out which side is the sharp cutting edge, and which side is the blunt edge. Look for a sticker indicating which side goes up and which side faces downward. The cutting edge should face the grass while the dull edge should face the deck of the mower.
Which way do mulching blades go on a lawn mower?
If it has the word “Bottom,” or a model number printed on it, that side of the blade faces the ground when the mower is upright. If there are no markings, check the blade’s bevel. The beveled portion must face away from the ground when installed. The bend in mulching blades also must point away from the ground.
What is the trailing edge of a lawn mower blade?
The trailing edge, or fin, is the edge opposite the cutting edge. In this photo you can see the blade has become thin. When it’s thin, it’s time to replace the blade.
Why does my mower leave a strip of grass in the middle?
A strip of uncut grass left in the middle of mowing rows could signal that your lawnmower’s blades are unbalanced or that one or both of them was installed the wrong way. … Ensure that your mower’s blades are on correctly, that both are secured tightly to the mower deck and that both are balanced.
Do you sharpen both sides of lawn mower blade?
Check for the Proper Filing Angle
File in the direction of the original cutting angle. Always sharpen from the top side of the cutting edge; this will give you the longest-lasting edge on the blade. … Don’t try to make your blade razor sharp; it’ll dull more quickly. “Butter-knife” sharp will do.
Should a mower deck be level front to back?
Lawn mower deck pitch, or sometimes referred to as, “rake,” is the tilt of the mower deck from front to back. … Naturally, this makes the sweet spot about 1/4-inch of pitch, depending on the mower model. In any case, the front of the deck should be pitched lower than the deck rear.