Measuring the bar size of a chainsaw is a vital step for guaranteeing secure and environment friendly operation. It determines the reducing capability of the chainsaw and helps customers select the proper substitute bar and chain when wanted. Whether or not you are a seasoned chainsaw operator or a novice person, understanding the way to measure bar size precisely is important for correct chainsaw upkeep and operation.
To start, find the bar’s tip and the top of the chainsaw’s physique the place the bar is connected. The bar size is measured from the tip of the bar to the middle of the mounting bolts or studs that safe the bar to the chainsaw. Utilizing a measuring tape, prolong it from the bar’s tip to the middle of the mounting bolts. Make sure the tape measure is parallel to the bar’s prime floor for an correct studying.
As soon as the measurement is taken, spherical it to the closest inch. Chainsaw bar lengths are usually accessible in one-inch increments, resembling 16 inches, 18 inches, 20 inches, and so forth. The measured size ought to correspond to one among these commonplace sizes. If the measurement falls in between two sizes, it is usually beneficial to decide on the bigger dimension for higher reducing efficiency. Bear in mind, utilizing a bar shorter than the beneficial dimension can result in untimely chain put on and elevated vibration, whereas utilizing an extended bar might put extreme pressure on the chainsaw’s engine.
Figuring out the Bar Nostril and Tip
The bar nostril is the pointed finish of the chainsaw bar the place the reducing enamel are positioned. The bar tip is the rounded finish of the bar that connects to the powerhead. It is very important be capable of establish the bar nostril and tip in an effort to correctly measure the bar size.
To establish the bar nostril, search for the pointed finish of the bar the place the reducing enamel are positioned. The reducing enamel are usually small, sharp, and spaced evenly throughout the bar.
To establish the bar tip, search for the rounded finish of the bar that connects to the powerhead. The bar tip is often wider than the bar nostril and has a gap within the heart for the powerhead shaft.
Here’s a desk that summarizes the important thing variations between the bar nostril and tip:
| Attribute | Bar Nostril | Bar Tip |
|---|---|---|
| Form | Pointed | Rounded |
| Slicing Tooth | Sure | No |
| Connection to Powerhead | No | Sure |
Upon getting recognized the bar nostril and tip, you may proceed to measure the bar size.
Finding the Information Bar Mounting Nuts
Figuring out the information bar mounting nuts is comparatively simple. Here is a step-by-step information that can assist you find them:
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Examine the Entrance of the Chainsaw: Find the metallic panel on the entrance of the chainsaw that covers the chain and bar. It is usually held in place by bolts or latches.
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Find the Bar Nostril Sprocket: As soon as the duvet is eliminated, you may see the bar nostril sprocket, which is a gear that drives the chain. The sprocket is connected to the information bar with one or two bolts.
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Determine the Mounting Nuts: The information bar mounting nuts are usually positioned on the perimeters of the bar, close to the bar nostril sprocket. They’re often giant, hexagonal nuts that safe the bar to the chainsaw. They might have a plastic or metallic cowl defending them from particles.
To make sure accuracy, discuss with the chainsaw’s person handbook for particular directions on finding the information bar mounting nuts in your mannequin.
Measuring from the Nostril to the Mounting Nuts
This technique is essentially the most correct and ought to be used each time doable. To measure the bar size utilizing this technique, observe these steps:
- Place the chainsaw on a flat floor, with the bar pointing away from you.
- Measure the space from the tip of the nostril to the middle of the mounting nuts.
- Multiply the measurement by 2 to get the bar size.
For instance, for those who measure the space from the tip of the nostril to the middle of the mounting nuts to be 10 inches, then the bar size can be 20 inches.
Suggestions for Measuring the Bar Size
- Use a measuring tape or ruler that’s lengthy sufficient to succeed in from the tip of the nostril to the middle of the mounting nuts.
- Be sure that the measuring tape or ruler is straight and never kinked.
- Learn the measurement rigorously to make sure accuracy.
Desk of Bar Lengths
The next desk reveals the bar lengths of some widespread chainsaws:
| Mannequin | Bar Size |
|---|---|
| Stihl MS 170 | 14 inches |
| Husqvarna 135 | 16 inches |
| Echo CS-310 | 18 inches |
| Craftsman 42CC | 20 inches |
Utilizing a Measuring Tape or Ruler
To precisely measure the size of your chainsaw’s bar, observe these steps utilizing a measuring tape or ruler:
1. Make sure the chainsaw is turned off and unplugged.
2. Find the bar’s tip and the bottom the place it attaches to the physique of the chainsaw.
3. Lengthen the measuring tape or ruler alongside the highest of the bar, aligning it with the tip and base.
4. Report the measurement in inches or centimeters.
For added accuracy, contemplate the next ideas:
– Use a high-quality measuring tape or ruler with clear markings.
– Make sure the measuring device is held straight and parallel to the bar’s prime edge.
– Repeat the measurement just a few occasions to make sure consistency.
| Measurement vary | Beneficial device |
|---|---|
| As much as 24 inches | Normal measuring tape |
| 24 to 36 inches | Lengthy measuring tape or ruler |
| Over 36 inches | Carpenter’s measuring tape or folding rule |
Measuring from the Tip to the Finish of the Information Bar
To measure the bar size from the tip to the top of the information bar, observe these steps:
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Place the chainsaw on a flat floor with the bar pointing away from you.
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Determine the tip of the bar, which is the pointed finish the place the chain begins to chop.
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Find the top of the information bar, which is the sq. or rectangular finish the place the chain wraps round.
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Use a ruler or tape measure to measure the space between the tip of the bar and the top of the information bar.
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The measurement you receive is the bar size.
Suggestions:
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Make sure that the chainsaw is turned off and cooled down earlier than measuring.
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Use a straight ruler or tape measure for correct outcomes.
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If the bar has a curved tip, measure from the tip of the straight part to the top of the information bar.
Figuring out the Total Bar Size
Measuring the general bar size is essential for selecting the proper substitute bar and guaranteeing optimum efficiency. Listed here are the steps to find out the general bar size:
- Find the Tip: Decide the pointed finish of the bar, which is the tip.
- Determine the Nostril: The world the place the tip meets the bar physique known as the nostril.
- Measure to the Nostril: Use a tape measure to measure the space from the tip to the nostril.
- Report the Tip Distance: Be aware down the measured distance because the “Tip Distance.”
- Find the Mounting Holes: Discover the 2 mounting holes on the bottom of the bar the place it attaches to the noticed.
- Measure Between Holes: Measure the space between the facilities of the 2 mounting holes. This measurement is the “Mounting Gap Distance.”
Tip: To make sure accuracy, measure each the Tip Distance and Mounting Gap Distance a number of occasions and report a median of the measurements.
The general bar size is decided by including the Tip Distance and Mounting Gap Distance:
Total Bar Size = Tip Distance + Mounting Gap Distance
| Measurement | Description |
|---|---|
| Tip Distance | Distance from the tip to the nostril |
| Mounting Gap Distance | Distance between the facilities of the mounting holes |
| Total Bar Size | Sum of Tip Distance and Mounting Gap Distance |
Issues for Angled Cuts
When making angled cuts, the efficient bar size is affected by the angle of the lower. The shorter the angle, the shorter the efficient bar size turns into. It is because the noticed blade will not be reducing straight throughout the workpiece, however is as an alternative touring at an angle. In consequence, the noticed blade is barely reducing by way of a portion of the workpiece’s thickness. The better the angle, the much less of the workpiece’s thickness the noticed blade is reducing by way of, and the shorter the efficient bar size turns into.
The next desk reveals the efficient bar size for various angles of lower:
| Angle of Reduce | Efficient Bar Size |
|---|---|
| 0° | 100% |
| 15° | 96% |
| 30° | 87% |
| 45° | 71% |
| 60° | 50% |
| 75° | 25% |
| 90° | 0% |
When making angled cuts, you will need to take the efficient bar size into consideration. This may show you how to to keep away from reducing too deeply into the workpiece or reducing at too shallow an angle.
Checking the Producer’s Specs
By going by way of the chainsaw’s person handbook or the producer’s web site, you may simply entry the precise bar size specs of your specific mannequin. Official documentation usually outlines important particulars like beneficial bar lengths, reducing capabilities, and security pointers, guaranteeing you will have all the mandatory data to decide on essentially the most appropriate bar size in your wants.
Deviations
It is essential to notice that the desired bar size might fluctuate barely from the precise size of the bar you obtain. This variance is because of manufacturing tolerances and the necessity to accommodate totally different chain drive techniques. As an illustration, a 20-inch bar might have an precise size that falls between 19.5 and 20.5 inches. Whereas this distinction is usually minor, it is a good suggestion to verify the bodily bar size if exact measurements are important in your software.
Measuring the Bodily Bar Size
In instances the place you do not have entry to the producer’s specs or want a extra hands-on strategy, you may decide the bar size manually utilizing a easy measuring tape. Here is a step-by-step information:
- Place the chainsaw on a flat and steady floor.
- Find the nostril of the information bar, which is the pointed finish the place the chain begins reducing.
- Lengthen the measuring tape from the tip of the nostril to the bottom of the chainsaw physique, the place the bar is connected to the ability head.
- Report the measurement in inches or centimeters.
Bear in mind, the bodily bar size might embody the size of the nostril, which isn’t all the time part of the reducing space. Some producers present separate measurements for the reducing size and the general bar size. You’ll want to make clear which measurement is being supplied when referring to the producer’s specs.
|
Measurement Kind |
Description |
|---|---|
Significance of Correct Measurement for Chain Tensioning
Correct chain rigidity is essential for optimum chainsaw efficiency and security. An precisely measured bar size is important for reaching the proper rigidity.
9. Utilizing a Measuring Tape
If you do not have a ruler or caliper, you should use a measuring tape to estimate the bar size. Comply with these steps:
- Place the tape on the finish of the information bar and prolong it alongside the highest edge.
- Be aware the measurement the place the tape reaches the bottom of the chainsaw.
- Subtract the thickness of the bar from the measurement to get an approximate bar size.
Here is a desk as an example the steps:
| Step | Measurement |
|---|---|
| 1 | Complete size (tape measure) |
| 2 | Size from finish to base |
| 3 | Bar size (Size from finish to base – bar thickness) |
Security Precautions When Measuring Bar Size
Earlier than measuring the bar size, it is essential to take correct security precautions to keep away from accidents:
- Put on security gear: At all times put on eye safety, ear safety, and gloves when dealing with the chainsaw.
- Safe the chainsaw: Place the chainsaw on a steady floor and guarantee it is turned off and the chain brake is engaged.
- Take away the information bar: To measure the bar size precisely, you could take away the information bar from the chainsaw.
- Use a tape measure: Use a typical tape measure or a tape measure particularly designed for measuring chainsaws.
- Find the bottom of the bar: Begin measuring from the bottom of the bar, the place it attaches to the chainsaw physique.
- Measure to the tip: Lengthen the tape measure to the tip of the bar, the place the chain begins.
- Learn the measurement: Be aware down the size in inches or centimeters, relying in your most popular metric.
- Double-check: To make sure accuracy, re-measure the bar size to keep away from any discrepancies.
- Spherical as much as the closest inch: When measuring the bar size, spherical as much as the closest complete inch for security causes.
- Think about the nostril radius: If the chainsaw bar has a nostril radius (the curved portion on the tip), add an additional 1/2 inch to the measurement for accuracy.
How To Measure Bar Size On Chainsaw
Measuring the bar size on a chainsaw is a straightforward course of that may be accomplished in a couple of minutes. The bar size is the space from the tip of the nostril to the top of the bar. To measure the bar size, observe these steps:
- Place the chainsaw on a flat floor.
- Measure the space from the tip of the nostril to the top of the bar.
- The measurement is the bar size.
Individuals Additionally Ask
What’s the commonplace bar size for a chainsaw?
The usual bar size for a chainsaw is eighteen inches. Nonetheless, bar lengths can vary from 10 inches to 36 inches, relying on the mannequin of chainsaw.
What’s the most bar size that can be utilized on a chainsaw?
The utmost bar size that can be utilized on a chainsaw is decided by the mannequin of chainsaw. The producer will specify the utmost bar size that can be utilized on every mannequin.
Can I take advantage of a bar that’s longer than the beneficial size on my chainsaw?
No, you shouldn’t use a bar that’s longer than the beneficial size in your chainsaw. Utilizing a bar that’s too lengthy can put stress on the chainsaw and trigger it to overheat.
