Wiktor Wise
Electric chainsaws are powerful tools, and knowing how to reattach a chain is essential for any user. The chain of an electric saw can easily become blunt, cracked, or stretched, which can affect the performance and safety of the tool. In this article, we will walk you through the process of reattaching a chain on an electric chainsaw, covering safety precautions, tools and materials, and a step-by-step replacement guide.
| Characteristics | Values |
|---|---|
| Safety precautions | Wear safety glasses, hearing protection, gloves, and a full-face shield |
| Tools required | Chain tensioning tool, screwdriver or wrench, workbench or saw horse, cleaning brush |
| Materials | Replacement chain, chain oil, cardboard or newspaper, paintbrush |
| First steps | Disconnect power supply, unplug the saw, remove spark plug wire |
| Accessing the chain | Remove bar and chain cover, clean debris, remove bar nuts and plastic housing |
| Replacing the chain | Thread chain around bar, link ends, align chain in bar grooves, adjust tension, tighten chain |
| Final steps | Securely fasten chain cover, test run, adjust tension if necessary, final check |
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What You'll Learn
Safety precautions and protective gear
Safety should always be the top priority when working with an electric chainsaw. Here are some safety precautions and protective gear instructions to follow when reattaching an electric chainsaw chain:
Safety Precautions:
- Let the chainsaw cool down completely before attempting to reattach the chain to avoid burns.
- Ensure that you are using the correct replacement chain for your specific chainsaw model.
- Familiarize yourself with the chainsaw's safety features, such as the front hand guard and chain brake, and understand how to activate them.
- Keep the work area clean and free of debris. A clean workbench or sawhorse provides a stable platform for working on the chainsaw.
- Always engage the chain brake before starting the chainsaw or setting it down.
- Maintain proper tension on the chainsaw blade. A loose chain can be dangerous.
- Avoid kickback by preventing the tip of the cutting arm from coming into contact with any objects. Chainsaw kickback can result in serious injury.
Protective Gear:
- Wear safety glasses or goggles to protect your eyes from flying debris.
- Use hearing protection, such as earplugs or earmuffs, to safeguard your hearing from the loud noise produced by the chainsaw.
- Put on heavy-duty work gloves to prevent bark and splinters from injuring your hands.
- Consider wearing a full-face shield for additional facial protection from wood chips and sawdust.
- Wear a properly fitted hard hat to protect your head from falling limbs or debris.
- Don steel-toed high-top boots with aggressive-treaded soles to prevent slipping and to safeguard your feet from potential contact with the chain.
- Wear snug-fitting, long-sleeved shirts to protect your arms from debris and provide comfort in hot and humid weather.
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Removing the old chain
To remove the old chain from your electric chainsaw, you must first disconnect the power supply by unplugging the saw from its power source and ensuring it is turned off. You should also wear protective gear, including safety glasses, hearing protection, gloves, and a full-face shield.
Next, use a screwdriver to remove the bar and chain cover from the chainsaw. This will give you access to the chain drive sprocket and the bar. Make sure to also remove the spark plug wire. With the chain cover removed, you can now access and remove the old chain. Ensure that you do not damage any other components while removing the old chain.
If your chainsaw has a side plate, you will need to remove it before accessing the old chain. The side plate is usually held on by two nuts, which can be unscrewed using a screwdriver or wrench. If your chainsaw's brake is attached to the side plate, be sure to unlock it before removing the plate.
Once the side plate is removed, pull the nose of the chainsaw's bar away from the chainsaw to release it from the tensioner. This will create slack in the chain, allowing you to easily remove it from the guide bar. Pull the drive links out of the guide bar, and your old chain will be completely removed.
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Threading the new chain
Before threading the new chain, it is important to take the necessary safety precautions. Wear safety glasses, hearing protection, gloves, and a full-face shield. Let the chainsaw cool down completely before replacing the chain to avoid burns.
Now, carefully thread the new or recently sharpened chain around the chainsaw's clutch drum, ensuring that the drive links engage in the sprocket. Thread the rest of the drive links into the guide bar and around its nose.
With the chain properly threaded along the clutch drum and guide bar, put some tension into it by pulling on the nose of the guide bar away from the chainsaw. While pulling the guide bar, make sure to seat it onto the saw's adjustment pin.
The side plate is ready to go back on as long as the guide bar is properly positioned beneath. Replace the plate and the nuts that hold it into position, but do not tighten the nuts all the way yet. The guide bar must be allowed to move a little while the chain is tightened to the correct tension.
Use the tensioning screw to the side of the guide bar to adjust the chain's tension. The chain should spin freely when it is pulled.
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Adjusting the tension
Before adjusting the tension, it is important to ensure that the chain is clean and free of any debris. Use a cleaning brush to remove any dirt, sawdust, or remaining pieces of wood. Additionally, make sure the chainsaw is disconnected from its power supply and is turned off.
Locate the tensioning screw on the inside of the guide bar. This screw is used to adjust the tension of the chain. Using a screwdriver or wrench, loosen the tensioning screw slightly to relieve tension on the bar. The amount of loosening or tightening required will depend on whether the chain is too tight or too loose.
If the chain is too loose, you will need to tighten the tensioning screw. Pull the nose of the guide bar away from the chainsaw to create some slack, and then adjust the tensioning screw until the desired tension is achieved. Ensure that the guide bar is seated properly onto the saw's adjustment pin while making these adjustments.
On the other hand, if the chain is too tight, you will need to loosen the tensioning screw further. Pull the nose of the bar toward the chainsaw to reduce tension on the chain, and then adjust the tensioning screw accordingly.
Once you have adjusted the tension, check it again before tightening the screws with a wrench. The chain should spin freely when pulled. Start the chainsaw and rev it a few times, then turn it off and test the tension again. If the tension has held, you can proceed with cutting. However, if the chain has loosened, you will need to readjust the tension and re-tighten the nuts or screws.
It is important to note that different models of electric chainsaws may have slight variations in their design. Therefore, always refer to the user manual or seek guidance specific to your chainsaw model if you are unsure about any steps.
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Testing the new chain
Testing the tension of your new electric chainsaw chain is a crucial step to ensure the optimal performance of your chainsaw and prevent potential safety hazards. Here are some detailed instructions on how to test the new chain:
Testing the Chain Tension
Start by gently pulling the chain away from the guide bar to observe the behaviour of the links. The links should exhibit a slight lift but not enough to become dislodged from the guide bar. This test helps ensure that the chain is not too loose, preventing potential derailment, which could lead to severe injuries.
Adjusting Chain Tension
If the chain feels too loose, you can adjust the tension by tightening the bar nuts until the chain is snug against the bar. It is important to strike a balance, ensuring the chain is not too tight, which can cause stress on various parts, such as the clutch and bearings, leading to premature wear and potential damage to the motor.
Moving the Chain
Another way to test the tension is by moving the chain around the guide bar with your hands. This hands-on approach allows you to feel the tension and ensure it is appropriately adjusted for the specific task at hand. Different tasks require varied tensions; for example, concrete and iron ductile cutting chainsaws require looser tension than wood-cutting chainsaws.
Safety Measures
Before testing the new chain, ensure you are equipped with proper safety gear, including goggles, gloves, and a helmet. Additionally, refer to the manufacturer's instructions for any specific guidelines or precautions related to your particular model of the electric chainsaw.
Testing the Chainsaw
Once you are satisfied with the chain tension, it's time to test the performance of your electric chainsaw. Start with a few short runs, observing if the chainsaw operates smoothly. Listen for any unusual sounds, and if everything seems in order, you can proceed with your regular usage.
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Frequently asked questions
Before attempting to reattach the chain, wear safety gear such as glasses, hearing protection, gloves, and a full-face shield. Let the chainsaw cool down completely to avoid burns.
You will need a replacement chain that fits your chainsaw, a screwdriver or wrench to access the chain cover and tensioning mechanism, a workbench or sawhorse to work on, and a cleaning brush to remove debris.
Disconnect the power supply and unplug the saw. Remove the bar and chain cover to access the chain drive sprocket and bar. Thread the new chain around the bar, ensuring each section fits properly. Reattach the bar and cover, tighten the chain, and test the chainsaw to ensure it runs smoothly.
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