Measuring the bar on a chainsaw is a crucial step in ensuring optimal performance and safety. A bar that is too long or too short can affect the chainsaw’s functionality and increase the risk of accidents. However, measuring the bar can be a daunting task, especially if you’re new to chainsaws. In this guide, we will provide a comprehensive guide on how to measure a bar on a chainsaw, covering both manual and digital methods. Whether you’re a seasoned pro or a novice, this step-by-step approach will help you determine the correct bar size for your chainsaw with ease.
When measuring a chainsaw bar, it’s essential to consider both the cutting length and the overall length. The cutting length refers to the part of the bar that has teeth, while the overall length includes the nose and the tail of the bar. To measure the cutting length, simply measure the distance from the tip of the bar to the first rivet hole on the bar’s body. The overall length, on the other hand, is measured from the tip of the bar to the end of the tail, where it connects to the chainsaw’s body. Accurately measuring both the cutting length and the overall length will ensure that you choose the correct replacement bar for your chainsaw.
Once you have determined the cutting length and overall length of your chainsaw bar, you can compare it to the specifications of available replacement bars. It’s important to note that different manufacturers may have different naming conventions for chainsaw bars. Some manufacturers refer to the cutting length as the “bar length,” while others use the term “cutting length.” To avoid confusion, always refer to both the cutting length and the overall length when comparing replacement bars. By following these simple steps and paying attention to the details, you can accurately measure a chainsaw bar and select the perfect replacement for your equipment.
Determining Bar Length for Chainsaws
When choosing a chainsaw, the bar length is a key factor to consider. It determines the size of the trees and branches you can cut effectively. Determining the appropriate bar length for your chainsaw involves weighing various factors, including the type of work you’ll be doing, the size of the trees you’ll be cutting, and your comfort level with operating a chainsaw.
Measuring the Bar Length
To measure the bar length on a chainsaw, follow these steps:
- Identify the tip of the guide bar. This is the pointed end of the bar where the chain is attached.
- Find the base of the guide bar. This is the opposite end of the bar where it connects to the chainsaw body.
- Measure the distance between the tip and the base. Use a tape measure or ruler to measure the length in inches or centimeters. This is the bar length.
It’s important to measure the bar length accurately, as it will affect the performance and safety of your chainsaw. If you’re not sure about the length of the bar, consult the chainsaw’s owner’s manual or contact the manufacturer.
| Bar Length | Recommended for |
|---|---|
| 14-16 inches | Small trees and branches |
| 18-20 inches | Medium-sized trees and branches |
| 22-24 inches | Large trees and branches |
| 25-28 inches | Professional tree felling |
Measuring the Cutting Length
Measuring the cutting length of a chainsaw bar is crucial for selecting the appropriate chain length. Here’s a step-by-step guide:
1. Determine the Bar Mount Type
Identify the type of bar mount on your chainsaw. Common types include:
| Bar Mount Type |
|---|
| Fixed-End Bar |
| Adjustable-End Bar |
2. Measuring a Fixed-End Bar
For fixed-end bars, the cutting length is the same as the total bar length. Measure the length from the tip of the bar to the center of the bar mount hole. This measurement is usually stamped on the bar itself.
3. Measuring an Adjustable-End Bar
For adjustable-end bars, the cutting length is determined by the position of the adjustable end. Here’s how to measure it:
- Extend the bar to its maximum length.
- Measure the distance from the tip of the bar to the center of the bar mount hole at the adjustable end.
- Subtract 2 inches from the measurement to account for the overlap between the tip and the guide bar groove.
Verifying the Bar Length with Manufacturers
If you’re unsure about the bar length after measuring it yourself, you can always verify it with the manufacturer. Most chainsaw manufacturers provide a table of bar lengths for their models. You can usually find this table in the owner’s manual or on the manufacturer’s website.
To find the bar length for your chainsaw, simply locate your model number in the table and look up the corresponding bar length.
Here’s how to do it:
| Manufacturer | Website |
|---|---|
| Echo | https://www.echo-usa.com/ |
| Husqvarna | https://www.husqvarna.com/ |
| Stihl | https://www.stihl.com/ |
1. Go to the manufacturer’s website.
2. Click on the “Support” or “Parts” tab.
3. Enter your chainsaw model number in the search bar.
4. Click on the “Parts” or “Specifications” tab.
5. Find the bar length in the table.
Inspecting the Bar for Compatibility
Before attaching a new bar, it’s crucial to ensure compatibility with your chainsaw. Mismatched bars can cause safety hazards and affect the performance of the machine.
Checking the Bar Length
The bar length is measured from the tip of the nose to where the bar mounts to the saw body. Consult your chainsaw’s user manual or manufacturer’s specifications to determine the recommended bar length for your model.
Verifying the Bar Mount Style
Chainsaws typically use two types of bar mounts: sprocket mounts and Oregon-type mounts. Inspect the bar’s mount point and compare it to the drive sprocket on your chainsaw. They should match in shape and size.
Matching the Bar Nose Shape
Bar noses come in various shapes, including standard, semi-chisel, and full-chisel. Each nose shape suits specific cutting applications. Ensure that the nose shape of the new bar aligns with the type of cutting you intend to perform.
Checking the Bar Thickness and Width
The bar thickness and width should match the specifications of your chainsaw. Incorrect dimensions can affect the chain tension and the performance of the saw. Consult your user manual or a qualified repair technician to determine the appropriate thickness and width for your model.
| Bar Parameter | Measurement |
|---|---|
| Length | From the tip of the nose to the bar mount point |
| Mount Style | Sprocket mount or Oregon-type mount |
| Nose Shape | Standard, semi-chisel, or full-chisel |
| Thickness | Measurement in inches or millimeters |
| Width | Measurement in inches or millimeters |
Measuring the Total Bar Size
To accurately measure the total bar size of a chainsaw, follow these steps:
- Locate the Length Stamp: Most chainsaw bars have a length stamp etched on the side, usually in inches or centimeters. This stamp indicates the total bar size.
- Measure from the Nose to the Tail: If a length stamp is not present, use a measuring tape or ruler to measure from the tip of the nose (the pointed end) to the end of the tail (the flat end where the chain is attached).
- Include the Drive Links: When measuring the bar size, include the length of the drive links, which are the teeth that engage with the chain’s drive sprocket. These links extend beyond the nose of the bar by approximately 1/4 to 1/2 inch.
- Round Up to the Nearest Inch: If the measurement is not a whole number, round it up to the nearest inch. This ensures that you have enough bar length to accommodate the chain.
- Measure the Thickness: In addition to the length, the bar’s thickness is also important. It determines the size of the chain that can be used. To measure the thickness, use a caliper or ruler to measure the distance between the top of the bar and the bottom of the groove where the chain sits.
Table: Common Chainsaw Bar Sizes
| Length | Thickness |
|---|---|
| 12 inches | 0.325 inches |
| 14 inches | 0.325 inches |
| 16 inches | 0.325 inches |
| 18 inches | 0.325 inches |
| 20 inches | 0.375 inches |
Measuring a Bar on a Chainsaw
To determine the bar length of a chainsaw, follow these steps:
- Place the chainsaw on a flat surface with the bar extended straight out.
- Measure the distance from the tip of the bar to the nearest rivet hole on the chainsaw body.
- Round the measurement to the nearest inch to determine the bar length.
Correct Bar Length for Chainsaw Efficiency
The optimal bar length for a chainsaw depends on the intended use and tree size. A longer bar provides greater reach and cutting capacity, but also increases the weight and reduces maneuverability. For most homeowners, a 16-18 inch bar is sufficient for small trees and general cutting tasks.
For larger trees or more demanding work, a 20-24 inch bar may be necessary. However, it’s important to consider the weight and balance of the chainsaw when choosing a longer bar.
The following table provides guidelines for bar length selection based on tree size:
| Tree Diameter | Recommended Bar Length |
|---|---|
| Up to 12 inches | 16-18 inches |
| 12-18 inches | 18-20 inches |
| 18-24 inches | 20-22 inches |
Note that these are general guidelines, and the actual best bar length may vary depending on factors such as chainsaw power, operator experience, and specific cutting conditions.
Safety Considerations When Choosing Bar Length
1. Experience and Comfort
The size of the bar you choose should match your experience level and comfort. If you’re a beginner, start with a smaller bar (14-18 inches). As you gain experience, you can move up to larger bars.
2. Type of Work
Different types of work require different bar lengths. For small tasks like trimming branches, a shorter bar (14-18 inches) is sufficient. For larger tasks like felling trees, a longer bar (20-24 inches) is necessary.
3. Tree Size
The size of the trees you plan to cut will determine the bar length you need. Smaller trees require shorter bars (14-18 inches), while larger trees require longer bars (20-24 inches).
4. Bar Thickness
Bar thickness is another factor to consider. Thicker bars are more durable and can handle heavier cutting tasks. However, they can also be more challenging to control. Thinner bars are less durable, but they’re easier to maneuver.
5. Weight
The weight of the bar is important to consider, especially for extended use. A heavier bar can put strain on your arms and back. Choose a bar weight that is comfortable for you to use.
6. Power
The power of your chainsaw will also affect the bar length you choose. A more powerful chainsaw can handle a longer bar, while a less powerful chainsaw will require a shorter bar.
7. Kickback
Kickback is a dangerous hazard that can occur when the chainsaw kicks up and towards the operator. Larger bars are more prone to kickback than smaller bars. It’s important to choose a bar length that minimizes the risk of kickback.
| Bar Length | Recommended for |
|---|---|
| 14-18 inches | Small tasks like trimming branches, cutting small trees |
| 18-20 inches | Medium tasks like felling small to medium trees, cutting firewood |
| 20-24 inches | Large tasks like felling large trees, cutting thick lumber |
Chain Length
The length of the chain is directly related to the length of the bar. To measure the length of the chain, count the number of drive links. Drive links are the links that have a tooth on them. The number of drive links will be equal to the length of the bar in inches.
Pitch
The pitch of the chain is the distance between two consecutive drive links. Pitch is measured in inches and is typically 0.325 inches or 0.404 inches.
Gauge
The gauge of the chain is the thickness of the drive links. Gauge is measured in inches and is typically 0.050 inches or 0.063 inches.
Troubleshooting Bar Size Issues
Bar size is too short
If the bar size is too short, the chain will not be able to reach around the tree trunk. This can cause the chain to bind and the saw to kickback. To fix this problem, you will need to replace the bar with a longer one.
Bar size is too long
If the bar size is too long, the chain will be too loose. This can cause the chain to derail and the saw to vibrate excessively. To fix this problem, you will need to replace the bar with a shorter one.
Chain is too loose
A chain that is too loose can derail or cause the saw to vibrate. To tighten the chain, turn the chain tensioning screw clockwise. Be sure to check the chain tension after each use to ensure that it is not too loose or too tight.
Chain is too tight
A chain that is too tight can put excessive stress on the saw’s engine and drivetrain. To loosen the chain, turn the chain tensioning screw counterclockwise. Be sure to check the chain tension after each use to ensure that it is not too loose or too tight.
Bent or damaged bar
A bent or damaged bar can cause the chain to bind and the saw to kickback. To fix this problem, you will need to replace the bar.
Worn or damaged chain
A worn or damaged chain can cause the saw to vibrate excessively. To fix this problem, you will need to replace the chain.
Bar oiler is not working
A bar oiler that is not working can cause the bar and chain to overheat and burn out. To fix this problem, you will need to clean the bar oiler and replace the oil filter if necessary.
Measuring a Chainsaw Bar
Measuring a chainsaw bar is crucial for determining its correct size and ensuring proper chain fit. To measure the bar accurately, follow these steps:
1. Remove the chain from the bar.
2. Clean the bar to remove any dirt or debris.
3. Lay the bar on a flat surface.
4. Measure the distance from the tip of the bar to the inside edge of the mounting hole.
5. Record this measurement in inches or centimeters.
6. Identify the gauge of the chain (e.g., .325″, .404″).
7. Consult the chainsaw manufacturer’s guide to determine the recommended bar length for your specific model.
8. Ensure the new bar is the same length and gauge as the old bar.
Bar Replacement and Compatibility
Finding a Compatible Bar
When replacing a chainsaw bar, it’s essential to choose a compatible one. Factors to consider include:
- Bar length: The new bar should match the length of the old bar.
- Bar gauge: The bar gauge should match the gauge of the chain. Incompatible gauges can damage the bar, chain, or saw.
- Bar mount: The new bar should have the same mounting pattern as the old bar to ensure proper fit on the chainsaw.
| Bar Gauge | Chain Compatibility |
|---|---|
| .325″ | Chains with a thickness of .050″ |
| .404″ | Chains with a thickness of .063″ |
Maintaining Chainsaw Bar Size
1. Know the Length You Need
The length of the bar is typically measured in inches. It is important to know the length you need before you start measuring the bar. This will help you avoid cutting the bar too short or too long.
2. Measure from the Tip of the Nose to the End of the Bar
To measure the length of the bar, you will need to measure from the tip of the nose to the end of the bar. The tip of the nose is the point at the front of the bar where the chain is attached. The end of the bar is the point at the back of the bar where the chain is guided.
3. Use a Tape Measure or Ruler
You can use a tape measure or ruler to measure the length of the bar. Be sure to measure in a straight line from the tip of the nose to the end of the bar.
4. Round to the Nearest Inch
Once you have measured the length of the bar, you will need to round to the nearest inch. This will help you avoid cutting the bar too short or too long.
5. Use a Bar Gauge
A bar gauge is a tool that is specifically designed to measure the length of a chainsaw bar. If you have a bar gauge, you can use it to measure the length of the bar quickly and easily.
6. Measure in a Safe Area
When you are measuring the length of the bar, be sure to do so in a safe area. This will help you avoid cutting yourself or damaging the bar.
7. Wear Safety Glasses
It is important to wear safety glasses when you are measuring the length of the bar. This will help you protect your eyes from flying debris.
8. Use a Workbench or Sawhorse
If possible, you should use a workbench or sawhorse to support the bar while you are measuring it. This will help you keep the bar steady and prevent it from moving.
9. Mark the Length You Need
Once you have measured the length of the bar, you will need to mark the length you need. You can use a pencil or marker to do this.
10. Cut the Bar to Length
Once you have marked the length you need, you can cut the bar to length. You can use a hacksaw or a power saw to do this. Be sure to cut the bar straight so that it will fit properly on the chainsaw.
How To Measure A Bar On A Chainsaw
Measuring the bar of a chainsaw is a simple procedure that can be done in a few minutes. It is important to measure the bar correctly, as this will ensure that you purchase the correct replacement bar if needed.
- Start by finding the tip of the bar. This is the pointed end of the bar that comes into contact with the wood.
- Measure the length of the bar from the tip to the base. This is the overall length of the bar.
- Locate the bar nuts. These are the nuts that hold the bar in place on the chainsaw.
- Measure the distance between the bar nuts. This is the cutting length of the bar.
People Also Ask About How To Measure A Bar On A Chainsaw
What is the standard length of a chainsaw bar?
The standard length of a chainsaw bar is 18 inches. However, bars can range in length from 10 inches to 36 inches, depending on the size and type of chainsaw.
What size bar do I need for my chainsaw?
The size of the bar that you need for your chainsaw will depend on the size and type of chainsaw that you have. It is important to consult your chainsaw’s owner’s manual to determine the correct bar size for your model.
Can I use a longer bar on my chainsaw?
In general, it is not recommended to use a longer bar on your chainsaw than the one that is recommended by the manufacturer. Using a longer bar can put additional strain on the chainsaw’s engine and may reduce its performance.
