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How To Put The Chain Back On A Chainsaw: Easy Guide
Can you put a chainsaw chain back on easily? Yes, putting a chainsaw chain back on is a straightforward process with the right steps and a little care. This guide will walk you through how to do it.
Chainsaws are powerful tools. They make tough jobs like cutting wood much easier. But like any tool, they need good care. A big part of this care is making sure the chainsaw chain installation is done correctly. This guide focuses on how to put the chain back on a chainsaw so you can get back to work safely and efficiently. We’ll cover everything from preparing your saw to the final checks.
Preparing Your Chainsaw for Chain Installation
Before you can start the chainsaw chain replacement or reinstallation, you need to get your chainsaw ready. This means making sure it’s safe and clean.
Safety First!
- Turn Off the Saw: Always make sure the engine is completely off and the spark plug wire is disconnected. This prevents the saw from accidentally starting while you’re working on it.
- Wear Gloves: Chainsaw chains have sharp teeth. Wearing sturdy work gloves will protect your hands from cuts and scrapes during the fitting chainsaw chain process.
- Work Area: Choose a clean, well-lit, and stable area to work. You don’t want your saw rolling away or to be distracted by clutter.
Gathering Your Tools and Parts
You’ll need a few things to make the job easier:
- The Chainsaw: Of course!
- New Chain (if replacing): Ensure it’s the correct size and type for your chainsaw model. Check your chainsaw’s manual or the old chain for this information.
- Scrench or Wrench: Most chainsaws come with a special tool called a scrench, which is a combination of a screwdriver and a wrench. You might also need a separate wrench depending on your chainsaw’s design.
- Gloves: As mentioned, for hand protection.
- Rag: For cleaning.
Step-by-Step: Fitting the Chainsaw Chain
Putting a chainsaw chain back on involves a few key steps. Let’s break them down.
Step 1: Loosen the Chain Brake and Bar Nuts
- Chain Brake: Engage the chain brake. This is usually a lever located near the top handle. Some saws have a spring-loaded brake, while others have a manual one.
- Bar Nuts: Locate the nuts that hold the guide bar to the chainsaw body. These are usually two nuts on the side of the saw. Loosen them with your scrench or wrench. You don’t need to remove them completely, just loosen them enough so the guide bar can move slightly. This will give you the slack needed to remove or install the chain.
Step 2: Remove the Old Chain (If Applicable)
If you are replacing an old chain, carefully lift the guide bar and slip the old chain off. Be mindful of the sharp teeth.
Step 3: Position the Guide Bar
- Slack is Key: Make sure the guide bar is loose enough to allow you to maneuver the chain onto it.
- Check Sprocket: Look at the sprocket at the end of the guide bar and the drive sprocket inside the clutch cover. The chain will wrap around both.
Step 4: Installing the Chainsaw Chain
This is the core of how to put the chain back on a chainsaw.
- Direction Matters: Chainsaw chains have a specific direction of travel. The cutting teeth should face forward on the top of the guide bar (the side that cuts into the wood) and backward on the bottom. Look closely at the teeth; they are usually angled to indicate the direction.
- Wrap the Chain: Start by looping the chain around the sprocket on the guide bar. Then, bring the chain down along the groove of the guide bar. Next, loop the chain around the drive sprocket inside the saw. Finally, bring the chain back up along the other side of the guide bar.
- Align the Drive Links: The drive links of the chain (the parts that fit into the guide bar groove and engage with the sprockets) need to sit properly.
Step 5: Reattach the Guide Bar and Secure the Chain
- Guide Bar Position: Once the chain is looped around both sprockets, place the guide bar back into its correct position against the chainsaw body.
- Tensioning Studs: You’ll see tensioning studs that poke through holes in the guide bar. Make sure these studs fit into the corresponding holes in the guide bar. Some chainsaws have an adjustable tensioning screw on the side or front of the saw, while others rely on adjusting the guide bar position itself.
- Hand Tighten Bar Nuts: Put the bar nuts back on and tighten them by hand as much as you can.
Step 6: Adjusting the Chainsaw Chain Tension
Proper chainsaw chain tensioning is crucial for safety and performance. A chain that’s too loose can fly off the bar, which is dangerous. A chain that’s too tight can cause premature wear on the chain, bar, and engine.
- Initial Tensioning: If your saw has a side tensioning screw, turn it until the chain is snug but still moves freely by hand. If your saw has a tensioning bolt at the front of the guide bar, you might need to adjust the guide bar’s position.
- Checking Tension:
- The “Sags Away” Test: Gently pull the chain away from the guide bar in the middle. It should sag slightly away from the bar, but not hang loose. When you let go, the chain should spring back and hug the bar.
- The “Slide Test”: You should be able to slide the chain around the guide bar by hand (with gloves on!). It should be snug but not stiff. If you can’t move it, it’s too tight. If it falls off easily, it’s too loose.
Step 7: Tighten the Bar Nuts
Once you have the correct tension, it’s time to secure the guide bar.
- Tighten Firmly: Use your scrench or wrench to tighten the bar nuts firmly. Don’t overtighten, but ensure they are snug enough to hold the guide bar securely in place.
- Re-check Tension: After tightening the bar nuts, the chain tension might change slightly. Give the chain another quick check to ensure it still moves freely by hand and has the correct sag. You may need to make minor adjustments.
Step 8: Engage the Chain Brake and Final Checks
- Disengage Brake: Release the chain brake.
- Spin by Hand: Slowly rotate the guide bar by hand a few times to ensure the chain is moving smoothly and evenly around the sprockets.
- Check Lubrication: Before starting the chainsaw, make sure the chainsaw guide bar lubrication system is working. You can often see a bit of oil on the tip of the guide bar when the saw is running, or you can check for oil on the chain itself after a short test run. This is a vital part of chainsaw maintenance.
Why Proper Chain Tension is So Important
Getting the chainsaw chain adjustment just right is more than just a minor detail. It directly impacts your safety and the life of your chainsaw parts.
- Safety: A loose chain is a major hazard. It can derail the guide bar while the saw is running, potentially causing severe injury to the operator.
- Performance: A chain that’s too tight creates excessive friction. This can lead to overheating of the guide bar and chain, reducing their lifespan and making cutting less efficient. It also puts unnecessary strain on the engine.
- Durability: Correct tension ensures that the chain and guide bar wear evenly. This means your chainsaw parts will last longer, saving you money on replacements.
Common Issues and How to Fix Them
Sometimes, things don’t go perfectly. Here are a few common problems you might encounter when fitting chainsaw chain:
- Chain Won’t Stay on:
- Problem: The chain keeps falling off.
- Solution: Check the direction of the cutting teeth. Ensure the guide bar is aligned properly with the tensioning studs. Double-check the chain tension; it might be too loose.
- Chain is Too Tight/Stiff:
- Problem: You can’t move the chain by hand.
- Solution: Loosen the bar nuts slightly. Release tension on the adjustment mechanism. Re-adjust until the chain moves freely but snugly.
- Chain is Too Loose:
- Problem: The chain sags a lot or falls off.
- Solution: Tighten the chain tensioning mechanism. Ensure the guide bar is properly seated. Re-tighten the bar nuts and re-check tension.
- Guide Bar Won’t Move:
- Problem: You’ve loosened the bar nuts, but the guide bar is stuck.
- Solution: Ensure the chain brake is disengaged. Sometimes a bit of force is needed. Try wiggling the bar while loosening the nuts. If it’s very stuck, a bit of penetrating oil might help, but be careful not to get it on the chain or sprockets.
Maintaining Your Chainsaw Chain and Bar
Proper chainsaw maintenance extends beyond just putting the chain back on. Regular care ensures your saw runs well and lasts longer.
Chainsaw Guide Bar Lubrication
This is one of the most critical aspects of chainsaw maintenance. The guide bar needs constant lubrication to reduce friction and heat.
- Check the Oil Reservoir: Ensure the oil reservoir is filled with appropriate bar and chain oil before each use.
- Observe Oil Flow: During chainsaw operation, you should see a fine mist of oil being thrown off the chain from the tip of the guide bar. If you don’t see oil, your lubrication system may be clogged or empty. Clean the oil holes on the guide bar and the oiler.
Sharpening the Chain
A sharp chain cuts efficiently and safely. A dull chain requires more force, leading to operator fatigue and potentially dangerous kickbacks.
- Regular Sharpening: Sharpen the chain regularly, especially if you notice it’s not cutting cleanly or you have to force the saw.
- Filing: Use a round file of the correct size for your chain and a filing guide. Follow the angles specified for your chain type.
Cleaning
- Remove Debris: After use, clean off sawdust and debris from the guide bar, chain, and around the clutch cover.
- Bar Groove: Use a thin tool (like a small screwdriver or a specialized bar scraper) to clean out the groove in the guide bar where the chain rides. This ensures smooth chain movement and proper oil delivery.
Chainsaw Operation Best Practices
Knowing how to operate your chainsaw safely and efficiently complements proper chainsaw maintenance.
- Grip: Always use a firm, two-handed grip on the saw.
- Stance: Maintain a stable stance with your feet apart.
- Kickback: Be aware of kickback, which is the sudden upward and backward motion of the chainsaw when the nose of the guide bar touches an object. Avoid cutting with the tip of the bar.
- Personal Protective Equipment (PPE): Always wear a helmet with a face shield or safety glasses, hearing protection, gloves, and chainsaw chaps.
Frequently Asked Questions (FAQ)
Q1: How often should I check my chainsaw chain tension?
A1: You should check your chain tension before each use, and again after the chain has heated up and stretched during initial cutting. It’s also good to check it after about 10-15 minutes of use.
Q2: What happens if my chainsaw chain is too tight?
A2: A chain that is too tight will cause excessive friction and heat. This can damage the chain, the guide bar, the sprocket, and even the engine. It also makes the saw harder to cut with and can lead to premature wear.
Q3: What happens if my chainsaw chain is too loose?
A3: A loose chain is very dangerous. It can derail from the guide bar while the saw is running, which can cause serious injury to the operator. It also reduces cutting efficiency.
Q4: Can I use any chain oil for my chainsaw?
A4: It’s best to use bar and chain oil specifically designed for chainsaws. These oils have tackifiers that help the oil stick to the chain and guide bar, ensuring proper lubrication even at high speeds. Regular motor oil is not recommended.
Q5: My chainsaw chain is worn out. How do I know when to replace it?
A5: A chain needs replacement when the teeth are significantly worn down, dull even after sharpening, or if the rivets or drive links are damaged. Another sign is if you can’t get proper tension on the chain anymore, which can happen if the chain stretches excessively.
By following these steps, you can confidently perform chainsaw chain installation and ensure your saw remains a safe and effective tool for all your cutting needs. Remember, proper chainsaw maintenance is key to longevity and safe operation.