Measuring the bar size of a chainsaw is a vital step for making certain protected and environment friendly operation. It determines the chopping capability of the chainsaw and helps customers select the best alternative bar and chain when wanted. Whether or not you are a seasoned chainsaw operator or a novice person, understanding methods to measure bar size precisely is crucial 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 hooked up. 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, lengthen 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 sometimes out there in one-inch increments, resembling 16 inches, 18 inches, 20 inches, and so forth. The measured size ought to correspond to considered one of these customary sizes. If the measurement falls in between two sizes, it is typically really useful to decide on the bigger measurement for higher chopping efficiency. Bear in mind, utilizing a bar shorter than the really useful measurement 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 chopping tooth are positioned. The bar tip is the rounded finish of the bar that connects to the powerhead. It is very important be capable to establish the bar nostril and tip with the intention to correctly measure the bar size.
To establish the bar nostril, search for the pointed finish of the bar the place the chopping tooth are positioned. The chopping tooth are sometimes 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 normally 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 |
| Reducing Enamel | Sure | No |
| Connection to Powerhead | No | Sure |
Upon getting recognized the bar nostril and tip, you’ll be able to proceed to measure the bar size.
Finding the Information Bar Mounting Nuts
Figuring out the information bar mounting nuts is comparatively simple. This is a step-by-step information that will help 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 sometimes held in place by bolts or latches.
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Find the Bar Nostril Sprocket: As soon as the quilt is eliminated, you may see the bar nostril sprocket, which is a gear that drives the chain. The sprocket is hooked up to the information bar with one or two bolts.
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Establish the Mounting Nuts: The information bar mounting nuts are sometimes positioned on the edges of the bar, close to the bar nostril sprocket. They’re normally 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 on your mannequin.
Measuring from the Nostril to the Mounting Nuts
This technique is probably the most correct and must be used at any time when 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 gap 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, in the event you measure the gap 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 achieve from the tip of the nostril to the middle of the mounting nuts.
- Make certain the measuring tape or ruler is straight and never kinked.
- Learn the measurement fastidiously to make sure accuracy.
Desk of Bar Lengths
The next desk reveals the bar lengths of some frequent 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. Prolong 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, think about 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 a couple of occasions to make sure consistency.
| Measurement vary | Really helpful 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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Establish 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 gap between the tip of the bar and the top of the information bar.
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The measurement you get hold of 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 General Bar Size
Measuring the general bar size is essential for selecting the right alternative bar and making certain optimum efficiency. Listed below are the steps to find out the general bar size:
- Find the Tip: Decide the pointed finish of the bar, which is the tip.
- Establish the Nostril: The realm the place the tip meets the bar physique is known as the nostril.
- Measure to the Nostril: Use a tape measure to measure the gap from the tip to the nostril.
- Report the Tip Distance: Word 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 gap 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 document a mean of the measurements.
The general bar size is set by including the Tip Distance and Mounting Gap Distance:
General 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 |
| General Bar Size | Sum of Tip Distance and Mounting Gap Distance |
Concerns for Angled Cuts
When making angled cuts, the efficient bar size is affected by the angle of the minimize. The shorter the angle, the shorter the efficient bar size turns into. It is because the noticed blade will not be chopping straight throughout the workpiece, however is as a substitute touring at an angle. In consequence, the noticed blade is barely chopping by a portion of the workpiece’s thickness. The higher the angle, the much less of the workpiece’s thickness the noticed blade is chopping by, and the shorter the efficient bar size turns into.
The next desk reveals the efficient bar size for various angles of minimize:
| Angle of Minimize | 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 aid you to keep away from chopping too deeply into the workpiece or chopping at too shallow an angle.
Checking the Producer’s Specs
By going by the chainsaw’s person handbook or the producer’s web site, you’ll be able to simply entry the precise bar size specs of your explicit mannequin. Official documentation sometimes outlines important particulars like really useful bar lengths, chopping capabilities, and security pointers, making certain you’ve all the mandatory info to decide on probably the most appropriate bar size on your wants.
Deviations
It is essential to notice that the desired bar size might differ barely from the precise size of the bar you obtain. This variance is because of manufacturing tolerances and the necessity to accommodate completely different chain drive programs. For example, 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 examine the bodily bar size if exact measurements are important on your utility.
Measuring the Bodily Bar Size
In circumstances the place you do not have entry to the producer’s specs or want a extra hands-on strategy, you’ll be able to decide the bar size manually utilizing a easy measuring tape. This is a step-by-step information:
- Place the chainsaw on a flat and secure floor.
- Find the nostril of the information bar, which is the pointed finish the place the chain begins chopping.
- Prolong the measuring tape from the tip of the nostril to the bottom of the chainsaw physique, the place the bar is hooked up to the ability head.
- Report the measurement in inches or centimeters.
Bear in mind, the bodily bar size might embrace the size of the nostril, which isn’t all the time part of the chopping space. Some producers present separate measurements for the chopping 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 Sort |
Description |
|---|---|
Significance of Correct Measurement for Chain Tensioning
Correct chain stress is essential for optimum chainsaw efficiency and security. An precisely measured bar size is crucial for reaching the right stress.
9. Utilizing a Measuring Tape
If you do not have a ruler or caliper, you need to use a measuring tape to estimate the bar size. Comply with these steps:
- Place the tape on the finish of the information bar and lengthen it alongside the highest edge.
- Word 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.
This is a desk for 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 secure floor and guarantee it is turned off and the chain brake is engaged.
- Take away the information bar: To measure the bar size precisely, it is advisable to take away the information bar from the chainsaw.
- Use a tape measure: Use a regular 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: Prolong the tape measure to the tip of the bar, the place the chain begins.
- Learn the measurement: Word 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 entire inch for security causes.
- Contemplate 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 gap 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 gap from the tip of the nostril to the top of the bar.
- The measurement is the bar size.
Folks Additionally Ask
What’s the customary bar size for a chainsaw?
The usual bar size for a chainsaw is eighteen inches. Nevertheless, 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 set by the mannequin of chainsaw. The producer will specify the utmost bar size that can be utilized on every mannequin.
Can I exploit a bar that’s longer than the really useful size on my chainsaw?
No, you shouldn’t use a bar that’s longer than the really useful size in your chainsaw. Utilizing a bar that’s too lengthy can put stress on the chainsaw and trigger it to overheat.
