- How to Replace a Craftsman Edger Blade
- How to Sharpen a Garden Hoe
- What Is a Sling Blade?
- How to Change the Mower Blade of a Lawn Boy
- How to Remove Lawn Mower Blades
- How to Use a Rear Blade on a Tractor
- How to Sharpen a Lawn Mower Blade
- How to Remove the Blades From a Murray Riding Mower
- How to Remove Craftsman Lawnmower Blades
Craftsman edger blades develop nicks and dents with normal use. Eventually, the blade might become worn or damaged on both sides. If this happens, replace the blade. Do not attempt to sharpen the blade, as this will cause it to weaken.
Disconnect the spark-plug wire from the spark plug. Grasp the rubber cap, then twist and pull gently until the cap and wire are removed.
Kneel behind the edger so the blade is in front of one of your knees. Place the end of a crescent wrench around the nut on the inside of the blade. Tighten the wrench until it fits snugly.
Determine the correct box-wrench size for the lock nut on the outside of the blade. Hold the crescent wrench in place with one hand, and place the box wrench onto the lock nut in a vertical position. Turn the wrench counter-clockwise until it begins to loosen. Continue loosening the lock nut until you can remove from the drive shaft.
Slide the new blade onto the drive shaft. Place the lock nut back onto the drive shaft, and twist clockwise until tight. Place the end of a crescent wrench around the nut on the inside of the blade, and hold the wrench in place with one hand. Place the box wrench back onto the lock nut, and turn it clockwise until it is snug.
Remove the wrenches, and reconnect the spark-plug wire. Place the rubber cap onto the plug, and gently twist back and forth while pushing down until it is secure.
Place the hoe into a vise if you have one. Position the blade of the hoe so it faces up and tighten the vise securely. If you do not have a vise, you can secure the hoe on a bench by kneeling on it with your body weight.
Stroke the mill file against the hoe blade with a downward, pushing motion. File the hoe on the front of the blade only with the same downward strokes, creating an angle between 30 and 45 degrees on the blade. Stop filing when the hoe blade is satisfactorily sharp.
Stroke the file down the other side of the blade once or twice to remove residual roughness that occurred from the sharpening.
Remove the hoe from the vise (if applicable) and test it in the soil. You should notice a measurable difference in sharpness as it cultivates the soil.
Sling blades are used to cut through brush, briars and other undergrowth that is too thick for an axe. Because of their long-handled design, sling blades are best used on brush requiring a low cut at the base of the plant.
Sling blades are mounted to the end of a 40-inch wooden handle, commonly made from hickory. Outdoor firefighters often use sling blades constructed with fiberglass handles. The blade itself is a steel, double-edged blade, sharpened on both sides, and requires constant tightening during use,
Sling Blade Handling
Sling blade use requires special handling for both safety and effectiveness. Handling a sling blade requires keeping your upper hand toward the cutting edge, as you would an ax, giving you better balance for low cuts.
Sling Blade Safety
Because of their size and sharpness, sling blades are dangerous and require safety precautions whenever handled. When using a sling blade, be sure there is adequate clearance for the swinging radius to avoid hitting anyone. According to the Mississippi Department of Transportation Survey Manual, you should always carry a sling blade like an ax, with your hand close to the cutting blade, and the blade's point facing forward. Never swing a sling blade overhead.
Empty the gas tank. Run the mower until the mower has run out of gas. Remove the sparkplug wire from the plug. Grip the sparkplug wire and twist off the plug end. Tilt the mower onto its side and secure the blade with a block of wood to prevent it from moving.
Remove the nut from the center of the blade. Turn counterclockwise to loosen the nut, using the wrench. Remove the nut and blade from the drive shaft, lifting them away from it.
Replace the blade with a new or sharpened one; sliding it curved side down onto the drive shaft. Replace the nut onto the shaft and tighten by hand. Place a wood block against the blade to secure it and tighten the nut further with a wrench.
Turn the mower upright. Pour gasoline in the tank and replace the sparkplug.
Disconnect the spark-plug wire from the spark plug. Grasp the rubber plug cap, and pull it gently away from the spark plug. Turn the mower on its side so the carburetor is on the high side, farthest from the ground.
Put on protective gloves, and turn the blade so it is in vertical position. Place the block of wood on the lower side of the housing on the right side of the blade. Place your foot (with shoes on) on the right side of the wood to keep the blade from turning.
Determine which wrench you need to remove the the nut at the center of the blade. Grasp the blade with one gloved hand, and place the wrench onto the bolt. Loosen the bolt by turning it counterclockwise.
Carefully remove the bolt, lock nut and washer by sliding them off the edge of the blade. Set these parts aside. Remove the blade from the adapter connected to the drive shaft.
Raise the rear blade off the ground by pulling back on the three-point hitch lever located beside the seat on the right side. Lower the blade by pushing forward on the lever.
Push the DSCV to the right to pitch the rear blade to the right. Pull the DSCV to the left to pitch the blade to the left. (The DSCV is located on the right side of the platform between the seat and steering wheel.)
Drive the tractor to the site where you plan to operate it. Using the DSCV and the three-point hitch lever, adjust the blade until you achieve the desired angle.
Put tractor in a lower gear, keeping the speed between 2 and 4 miles per hour.
Remove the spark plug wire on the front of the engine. With the spark plug wire removed, the engine won't start. This prevents injury while you are sharpening the blades.
Detach the blade from the bottom of the lawn mower. Use a wrench to loosen and remove the nut and bolt holding the blade in place.
Sharpen the blade with a file following the angle of the edge. If the angle is worn down it should be at 45 degrees.
File each side of the mower blade the same number of times. If the sides are filed differently the blade be off balance.
Re-attach the blade to the bottom of the lawn mower. Secure the nut and bolt to hold the blade.
Balance the blade with a blade balancer. If the blade is not balanced, file a little of the heavy side and try again. The lawn mower vibrates if the blade is not perfectly balanced.
Replace the spark plug wire and try out your new, sharp lawn mower blade.
Disconnect the spark plug wire. This will prevent the engine from starting up when you turn the blade.
Remove the mower housing. Check with your individual model's operation manual to see how the mower housing is removed.
Take your piece of two-by-four and wedge it in between the blade and the mower housing.
Use an adjustable wrench and remove the nut the holds the blade to the mower housing. The blade will slide off of the blade shaft. Save all the washers that come off with the blade. You will probably have to reinstall them with the new blade.
Repeat step 4 until all the blades are removed from the mower housing.
Empty the fuel tank. Because a Craftsman lawnmower must be tilted or turned over to remove the blade, excess fuel in the tank can leak. The gasoline can be removed by either siphoning it off or by running the mower until the tank is empty. Do not begin this job until the mower is cool.
Disconnect the spark plug wire on your Craftsman mower. Tilt the mower on its side in order to expose the blade and its connecting bolt.
Place a block of wood in between the blade and the mowing deck to make sure the blade cannot rotate while you are loosening the connecting bolt.
Determine the correct size wrench or use locking pliers needed to remove the fastening bolt that secures the blade to the motor. Loosen the bolt until the blade can be removed.