Wiktor Wise
Electric sheep shears are an essential tool for farmers, but they require proper maintenance to function effectively and safely. Blunt blades can cause frustration and slow down work, leading to poor cuts and potential injury to the sheep and the farmer. This article will provide a comprehensive guide on how to sharpen electric sheep shearing blades, ensuring efficient shearing and minimizing potential hazards. From initial safety precautions to various sharpening techniques, we will cover everything you need to know to keep your equipment in optimal condition.
| Characteristics | Values |
|---|---|
| Sharpening tools | Shearing grinder, flat stone, grinder machine |
| Safety precautions | Wear gloves and goggles |
| Blade lubrication | Heavy-duty motor oil, Marvel mystery oil, grease |
| Blade maintenance | Remove junk and rust, clean with a brush, wash with isopropyl alcohol or warm water |
| Blade replacement | Recommended to own multiple sets of blades to swap out when one set gets dull |
| Post-sharpening care | Reassemble the shears, use a few drops of oil to prevent overheating, turn on the machine to check if it's working |
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What You'll Learn
Using a stone and grinder machine
To sharpen electric sheep shearing blades with a stone and grinder machine, you will need a coarse honing stone, a shearing grinder, a grinding disc, a clamp, and emery and glue.
First, clean the shear with a brush to remove any dirt, rust, or grease. You can use very hot water for soaking the blades to make them easier to clean. Then, dump the stone with paraffin oil so that it doesn't create severe heat during friction. Hold the stone at a 10-15° angle and start moving the blades. Turn the shear over and repeat the process. Once the sharpening process is done, use grit dry or wet sandpaper to give the blades an even finish. After that, wipe the shear with a wet cloth or paper towel.
Next, prepare the grinding disc, clamp, and grinding paper. To protect the grit, cover the area under the grinder machine with a newspaper. Attach a magnet on top of the blade and start the grinder machine. Use a wire string to put your cutters on after grinding to ensure they stay the same thickness. Make sure to finish on the same spot each time and ensure that the sparks are going straight up off the grinding discs.
Finally, reassemble the blades with the clippers tightly and apply a few drops of oil to prevent the blades from overheating.
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Safety precautions
Firstly, ensure you have the proper sharpening equipment. Inadequate or dull blades can cause frustration and injury when shearing sheep, as it becomes more difficult to cut through the wool. Blunt blades can also hurt the sheep by tearing their wool instead of cutting it. Therefore, it is essential to have sharp blades and the right tools to maintain them.
When using a grinder, always follow the manufacturer's instructions and take the necessary precautions. Before beginning, ensure you have all the required equipment, such as a grinder machine, grinding discs, clamps, emery papers, and glue. Check for glue bubbles in your emery papers and change them immediately if necessary, as this can affect the sharpening process and create a safety hazard.
Always use a magnet when handling the blades. The magnet size should correspond to the blade size for secure handling. This will protect the blades from falling during the sharpening process. Additionally, when sharpening, use a flat stone or grinding disc and ensure it is securely placed on a table or workbench to prevent it from moving aside.
When sharpening, always wear protective gear, such as safety goggles and gloves, to shield yourself from any flying debris or sharp edges. It is also important to spread newspaper under the grinder to catch any grit and prevent it from spreading. After sharpening, use sandpaper to smooth the blades and a cloth to wipe them clean before reassembling the machine.
Finally, always disconnect the power source before handling the blades, and ensure the grinder machine is turned off and unplugged when not in use. By following these safety precautions, you can effectively sharpen your electric sheep shearing blades while minimizing the risk of accidents or injuries.
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Lubricating the blades
Firstly, disconnect the electric shear from the power source and remove the clipper head. You can then apply a generous amount of grease inside the shearing head. Marvel Mystery Oil is recommended for this purpose as it is long-lasting and will reduce oil wastage. You can also use heavy-duty motor oil, such as 30-weight motor oil. Reattach the clipper head and screws. This process should be repeated 1-2 times a year to keep the motor running smoothly and prevent junk from building up.
Additionally, you can use a few drops of oil on the blades to prevent them from overheating. Oster Kool Lube is a good option as it will not stain the sheep's wool. It is important to take safety precautions when lubricating and sharpening blades. Wear gloves to protect your hands and goggles to shield your eyes from any grit created by the friction between the blade and the sharpening stone or disc.
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Cleaning the blades
To clean the blades of electric sheep shears, first, disconnect the electric shear from its power source to avoid any accidents. Using a screwdriver, unscrew all the screws and take out the clipper blades, separating each part. Use a brush to remove any rust or dirt from the blades. You can then use isopropyl alcohol or warm water to thoroughly clean the blades, ensuring you dry them before sharpening.
It is important to keep the shearing head free from dirt and debris. Take off the clipper head and apply grease inside the head, before reattaching and screwing it back on. This should be done once or twice a year to maintain the shears.
Lubrication is also key to keeping the blades clean and functioning well. Use heavy-duty motor oil to lubricate the ports of the electric sheep shears. The Marvel Mystery Oil is recommended as it is an aromatic engine oil that lasts longer.
Before reassembling the shears, use a magnet to pick up the blades. Ensure you use the right-sized magnet for the blade you are working with.
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Testing the blades
Testing the sharpness of your electric sheep shearing blades is a crucial step in the sharpening process. It ensures that your blades are in optimal condition for shearing and prevents potential issues such as wrist injuries, poor shearing quality, and frustration during the shearing process. Here are some detailed instructions on how to effectively test the sharpness of your blades:
The Thumb Test
This is one of the most common methods of testing blade sharpness. It involves scraping your thumb in a perpendicular direction across the blade's cutting edge, with your fingers placed on the spine of the blade. However, it's important to note that this test has limitations. It may not be a reliable indicator of sharpness, as it can be subjective and vary depending on an individual's experience and judgement.
The Tongue Test
The Tongue Test is considered a dangerous and ill-advised method. It involves placing the cutting edge of the blade on the epidermis layer of the tongue and sliding it across. This test can potentially lead to serious injuries and is not recommended.
Test Cutting
Throughout history, various methods of test cutting have been used to examine blade sharpness. In ancient cultures, the sharpness of swords was of utmost importance. While the European methods have been lost, Japanese traditions, such as Tameshigiri, have preserved strict systems for testing samurai swords. Modern interpretations, like BladeSports in the USA, involve cutting various materials such as paper sheets, ropes, wooden boards, water bottles, and cardboard tubes.
Cutting Food Products
Testing the sharpness of a blade by cutting food products is a common household method. It involves cutting items with a soft yet elastic structure and a dense, elastic peel, such as tomatoes or fresh bread. A smooth cut through the dense peel without jamming the pulp indicates a sharp blade.
Electronic Sharpness Testers
Technology has led to the development of electronic devices for measuring sharpness, such as the American Edge-on-up (EOU) sharpness tester. This device uses the BESS scale ("Brubacher Edge Sharpness Scale") to provide a specific standard for measuring the sharpness of cutting edges.
Remember, it is essential to exercise caution when handling sharp blades during testing. Always prioritize your safety and follow proper procedures to avoid injuries.
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Frequently asked questions
First, disconnect the electric shear and take it apart. Clean the blades with isopropyl alcohol or warm water, then dry them. Use a flat stone or a grinder machine to sharpen the blades. You can also use a sharpening stone or a sharpening pendulum. Finally, reassemble the shear and apply a few drops of oil to prevent overheating.
If your electric shear is overheating, it could be a sign that your blades are dull and need sharpening. Another sign is if your sheep are kicking when you shear them, as this may be because the blades are blunt and hurting the sheep.
Always disconnect the electric shear from the power source before attempting to sharpen the blades. Wear gloves to protect your hands, and goggles to protect your eyes from grit. Do not touch the blades immediately after sharpening, as they will be very hot.
You should sharpen your blades at least once a year. However, it is recommended to have multiple sets of blades and swap them out when one set becomes dull, so you don't have to stop shearing to sharpen them.
You can use heavy-duty motor oil, such as 30-weight motor oil. Alternatively, you can use Marvel Mystery Oil, an aromatic engine oil that lasts longer and reduces waste.
