Beatrice Lang
Black and Decker electric hedge trimmers are made with high-quality hardened steel, which means that they rarely need sharpening. However, if you accidentally hit a hard object like a fence or stone, you may need to sharpen or replace the blade. Black and Decker does not offer sharpening services, but you can sharpen the blade yourself. To do this, unplug the trimmer and use a fine-toothed file, sharpening stone, or rotary tool to remove any nicks in the blade. It is important to prioritise safety by wearing protective gloves and eyewear.
| Characteristics | Values |
|---|---|
| Frequency of sharpening | With normal usage, Black and Decker electric hedge trimmers will not require sharpening |
| When to sharpen | If you accidentally hit a wire fence, stones, glass or other hard objects, you may put a nick in the blade. There is no need to remove this nick as long as it does not interfere with the movement of the blade. |
| Tools to use | Fine-toothed file, sharpening stone, round file, die grinder, Dremel rotary tool, mill file, sandpaper, hand-held multi-purpose tool |
| Safety precautions | Unplug the tool or disconnect the battery. Wear heavy cut-resistant gloves and eye protection |
| Alternative | It may be easier to replace the entire blade |
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What You'll Learn
Safety precautions when sharpening
While sharpening a chainsaw, it is important to take certain precautions to ensure your safety. Here are some safety measures to follow when sharpening a Black and Decker electric chainsaw:
Disconnect the power source: Before beginning any sharpening or maintenance work on your electric chainsaw, it is crucial to disconnect it from the power source. Unplug the chainsaw from any electrical outlets or batteries to ensure that it cannot be accidentally started during the sharpening process. This simple step can significantly reduce the risk of injury.
Wear protective gear: It is important to wear appropriate protective gear when sharpening your chainsaw. This includes heavy-duty cut-resistant gloves to protect your hands from the sharp teeth of the chain. Additionally, always wear eye protection, such as safety goggles or a face shield, to shield your eyes from any metal filings or debris that may be dislodged during sharpening.
Use the right tools: Select the correct sharpening tools for your chainsaw. A round file is commonly used for sharpening chainsaw chains, and it is important to choose the right diameter specified by the manufacturer. You may also need a file guide, which helps maintain the proper filing angle and depth. A saw chain depth gauge tool is also recommended to properly maintain the edge of the cutter.
Clean the chainsaw: Before sharpening, thoroughly clean the chainsaw to remove any dust, debris, and excess oil. This step is important for safety and can help prevent the buildup of resin and adhesive oil, which can hinder the sharpening process and affect the performance of the chainsaw. Use compressed air, a brush, or a rag to clean the machine, and pay special attention to the motor housing, handles, and teeth.
Engage the chain brake: When clamping the chainsaw in a vise or sharpening clamp, remember to engage the chain brake. This will prevent the chain from moving during the sharpening process, reducing the risk of accidental injury. Disengage the brake only when positioning the teeth for filing, and then re-engage it before resuming sharpening.
Mark a guide tooth: Before starting to sharpen, use a pencil to mark the shortest cutting tooth as a guide tooth. This will help you keep track of your progress and ensure that you sharpen all the teeth evenly in both directions. This simple step can help you achieve a consistent sharpening result.
By following these safety precautions, you can confidently sharpen your Black and Decker electric chainsaw while minimizing the risk of injury. Always refer to the owner's manual for additional safety guidelines and instructions specific to your model.
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Sharpening the blade by hand
To sharpen the blades of a Black and Decker electric hedge trimmer by hand, you will need to use a file or sharpening stone. Before you begin, it is important to take safety precautions. Wear protective eyewear and heavy-duty, cut-resistant, non-slip gloves to protect your eyes and hands from any metal fragments that may fly off during the sharpening process. It is also crucial to ensure that the trimmer is unplugged and the battery is removed before handling the blades.
Now, let's get into the step-by-step process of sharpening the blade by hand:
- Place the trimmer on a flat and stable work surface with the blades easily accessible. If possible, clamp the trimmer to the table to secure it firmly in place.
- Identify any nicks or burrs on the blade that need to be removed. These may occur if the blade has come into contact with hard objects such as stones, wire fences, or glass.
- Choose the appropriate tool for sharpening. You can use a fine-toothed file, a sharpening stone, or a flat file.
- If you are using a file, push down on the file while guiding it along the edge of each tooth from the base to the tip. Reposition the file on the opposite side of the tooth and repeat the process, ensuring that you keep the file flat. Try to maintain an angle of no less than 35 degrees for the cutting edge.
- If you are using a sharpening stone, place it at the base of the blade and run it along the edge all the way to the tip. Repeat this process for each blade that needs sharpening.
- To remove any small burrs or nicks left along the blade's edges, you can use a whetstone. Wet the whetstone with water and carefully drag its rough side along the edge of each tooth, following the same direction as when you filed them.
- Once you have finished sharpening, clean the blades with a silicone-based lubricant, such as WD-40, to remove any residue and keep the blades in optimal condition.
Remember to take your time and maintain a light touch when sharpening the blades. With careful maintenance, your Black and Decker electric hedge trimmer can last for decades, providing you with a precise and efficient cutting experience.
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Using a mill file
To sharpen a Black and Decker electric chainsaw using a mill file, you will need a 5/32" or 4mm file. Set the chainsaw on a flat work surface with access to the cutting bar and teeth. Stabilize the bar in a table vise if desired, so it doesn't move while you work. Ensure the chainsaw is unplugged from its power source.
Brush the cutting teeth with a nylon-bristled brush to remove any dirt and debris that could interfere with the sharpening process. Align a 10-inch mill file in the groove of the first cutting tooth you want to sharpen, angling the file so it follows the groove. Push down on the mill file while guiding it along the edge of the tooth to the tooth's point. Reposition the file in the groove on the opposite side of the tooth, keeping the file flat instead of angled. Guide the file flat along the tooth to the point.
File each side of the cutting tooth a total of 10 to 20 times, alternating sides with each pass, until the tooth has a sharp edge. It may take more than 20 strokes to remove a nick, but 10 to 20 strokes are sufficient to sharpen dull, rusty blades. When grinding, use a moderate bouncing motion with the grinder instead of steady pressure to prevent the teeth from overheating.
Repeat the above steps to sharpen the remaining teeth along the bar, trying to file each tooth the same as the rest. Finally, flip the chainsaw over so the flat side of the teeth faces up.
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Grinding tool tips
If you own a Black and Decker electric chainsaw, you will eventually need to sharpen or replace the chain. Over time, the chain can become dull or damaged, reducing its effectiveness in cutting. Here are some grinding tool tips to help you keep your chainsaw in top condition:
Safety First
Before attempting to sharpen or replace the chain, always prioritize safety. It is important to wear protective gear, such as gloves and safety glasses, to avoid injuries. Ensure that the chainsaw is unplugged from any power source and that the electricity in your home is switched off at the main circuit breaker. Never try to work on the chain while it is installed on the saw.
Use the Right File Size
When sharpening the chain, use a 5/32" or 4 mm round file. This is the recommended size for Black and Decker chainsaws. Using the correct file size will help you achieve the proper angle and depth when sharpening the chain teeth.
Sharpening Technique
Secure the chain with a clamp or vise to hold it in place. Start sharpening the teeth with a file or grinder, filing in one direction only, away from your body. File each tooth the same number of times and with the same number of strokes to ensure uniformity. Follow the angle of the tooth when sharpening, and avoid filing too close to the depth gauge, which is the part of the chain that determines how deep the cut will be.
Replacing the Chain
If the chain is severely damaged or worn out, you may need to replace it entirely. Loosen the nuts holding the cover plate in place and remove it. Then, loosen the nuts holding the old chain in place and remove it from the drive sprocket and bar. Install the new chain by placing it over the drive sprocket, looping it around the bar, and threading it through the slot in the cover plate. Tighten the nuts securely and replace the cover plate.
Maintenance
To extend the lifespan of your chain, it is recommended to sharpen or replace it every 50 hours of use or when you notice signs of wear and tear. Regular maintenance of your Black and Decker electric chainsaw will ensure optimal performance and make your lawn maintenance tasks easier and safer.
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Removing nicks from the blade
Once you have prepared the work area and put on the necessary safety gear, you can begin the process of removing the nick from the blade. Place your trimmer in a vice or clamp to secure it firmly in place and reduce movement during the sharpening process. If you do not have access to a vice, you can ask someone to hold the trimmer steady while you work. With the trimmer securely held, use a fine-toothed file or sharpening stone to gently remove the nick from the blade. File the blade at the original cutting angle, ensuring that you remove equal amounts of material from both ends of the blade.
It is important to note that you should only remove the nick if it interferes with the movement of the blade. If the nick is minor and does not affect the blade's functionality, it can be left as it is. Additionally, Black+Decker recommends considering the time and labour involved, as it may be more practical to simply replace the entire blade rather than attempting to sharpen it.
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Frequently asked questions
With normal usage, Black and Decker trimmer blades are made of high-quality hardened steel that does not require sharpening. However, if you accidentally hit a hard object like a wire fence, stones, or glass, you may nick the blade. If this nick interferes with the blade's movement, you will need to sharpen it.
Always unplug the trimmer from its power source before attempting to sharpen it. Wear heavy cut-resistant gloves and protective eyewear to ensure your safety.
You can use a fine-toothed file, sharpening stone, or sharpening bit attached to a hand-held multi-purpose tool. For best results, insert the sharpening bit slightly less than all the way into the tool. You can also use a ¼-inch to ½-inch wheel on a die grinder or Dremel rotary tool.
Clamp your trimmer securely to a work table with the blade teeth accessible. If you need to remove a nick, use a fine-toothed file or sharpening stone to smooth it out. To sharpen the entire blade, use a round file by hand, filing each side of each tooth. Remember to maintain the same angle and pressure on each tooth for consistent results.
