The aim of the study was to measure vibration levels at chainsaw handles and to determine differences in simulated daily exposure A(8) value with respect to exploitation years, type of chainsaw, mass and power. From the weighted acceleration levels in all three axes, the vibration total value for three modes according to the following relation was determined ahwi – weighted effective acceleration levels Based on the measured acceleration values on the chainsaws and the calculated vibration total values, a model for estimating the daily exposure value A(8) was calculated according to the relation = ahvi ·Ti T0 i=1 T0 , daily working time of 8 h or 28,800 s; ahvi , vibration total value for i operation; Ti , duration of i operation; N, total number of operations. Used descriptive variables were: chainsaw years in use and chainsaw type in use. Levene’s test proved the assumption of homogeneity of variance between 1.615; pp = 0.12) within within the the daily daily vibration vibration exposure exposure A(8) A(8) between data data groups groups by by chainsaw chainsaw type type value. The results of the research showed that first and the second group of chainsaws have the highest measured vibration values most often on the front handle, while MS 660 chainsaws the highest vibration measured values had on the rear handle. Conclusions All the highest vibration values of tested chainsaws appeared when idling, on the front handle for the group of chainsaws MS 260 and MS 440, while for the group of chainsaws MS 660, the highest values were measured on the rear handle. In the first group, there is no chainsaw that exceeds the limit value of 5 m/s2 , while in the second and third groups, four chainsaws per group exceed the limit A(8) value.
Isolators are springs or rubber bushings that connect the engine to the handle. Because isolators or isolator mounts are often made of rubber or thin pieces of metal, they tend to wear down over time. If the isolator is worn out, the blower’s normal vibration will become much more noticeable for the user.
One of the most common complaints among chainsaw users is that their saw vibrates too much. Use of an efficient chainsaw can help reduce vibrations by almost 40%.Have a well balanced cutting chain. These tips should help you fix the vibration problems for your chainsaw, but always refer to your instruction manual for detailed information on your specific chainsaw.
On a pro saw, vibration is caused by two things: engine vibration and cutting vibration. Even with improvements in the design of saw chain, a saw’s operator plays a big role in managing the cutting vibration his saw makes. There is an ongoing effort among today’s saw chain manufacturers to reducing the cutting vibration of saw chain.
I run a 36″ bar on my 044 and it will do that if I cut small stuff, but I do not usually cut small stuff with a big bar,I get a smaller saw and match my saw to what I am cutting. I run a 36″ bar on my 044 and it will do that if I cut small stuff, but I do not usually cut small stuff with a big bar, You know since you mentioned that I never would have never thought a little 70 cc 044 had enough grunt to handle that much bar. I’ve noticed the same vibration – I just changed the cutting angle to give the bar a full cut and it went away.
why does my chainsaw vibrate Related Question:
Why does my chainsaw bounce when cutting?
Chainsaw chain jumps and is broken The chain saw belt jumps when it breaks at full speed. This situation can be caused by using an unsuitable chain. This happens when you are cutting very hard wood with a gouge chain. It is indeed very important to choose the right belt for the job to be done.
Do Electric chainsaws vibrate?
Generally, electric chainsaw vibrations for the individual directions are higher than those for the chainsaw with a combustion engine. The only exception is direction Y for the rear handle. The dominant direction of front handle vibrations is the Z direction, and for the rear handle vibrations – the X direction.
Why does my chainsaw spin at idle?
The most probable – and easiest to fix – cause of chain rotation while the chainsaw engine idles is a poorly adjusted idle setting on the carburetor. The result is that too much fuel is delivered to the combustion chamber when the throttle is released, and the engine doesn’t really slow.
When should you throw away a chainsaw chain?
The chainsaw pulls in one direction, which results in a crooked finish. Blunt cutting teeth on one side or uneven teeth lengths usually cause this. The teeth has hit rocks or dirt and broken. If you notice the tops of the teeth are missing you will need to replace the chain.
Do you need to clean chainsaw after every use?
After each use, wipe the chainsaw housing clean with a damp cloth. For battery models, you should also use the damp cloth to clean the battery and the battery slot. A paintbrush is useful for cleaning electrical contacts.
How often should you service your chainsaw?
Obviously this depends to some degree on how often and how heavily you use your chainsaw but experts generally recommend you get a professional service or check-up from every few months for heavier use to at least once a year for light use.
How can I make my chainsaw quieter?
You can silence a chainsaw in two ways: creating a barrier between the noise and yourself, and ensuring that the machine works properly. Fixing loose mufflers, leaky exhausts, and rusty chains can reduce noise, and wearing earplugs and earmuffs over your ears will further quiet the chainsaw.
How long does an ego chainsaw battery last?
Due to their high capacity, all EGO batteries can be stored unattended for a minimum of 10 years without damaging capacity and cycle performance. After 30 days batteries discharge to 30% capacity (to ensure longevity).
Are electric chainsaws safer?
Safer to Use Electric chainsaws have several features that make them safer for casual users than their gas-powered counterparts: Lower chain speeds. Chains that run only when you’re actively cutting with your saw. Bars that measure no longer than 18 inches.
Why does my chainsaw bog down when I give it gas?
If your chainsaw is bogging down when you give it throttle, this is often a sign of improper gas-to-oil ratio. If there is too much gasoline in relation to the amount of oil used, this is known as a “rich mixture” and can cause the chainsaw to run poorly.
Why does my chainsaw get dull so fast?
Dirt Causes A Chainsaw To Dull If you’re cutting through logs and your angle of approach is too steep, a simple cut through could nick dirt or even worse, rocks on the floor causing your chainsaw to jerk, thus dulling.
Is it worth sharpening a chainsaw chain?
Sharpening your chainsaw chain is definitely worth it as a sharp chainsaw chain is easier to work with. It takes less effort to cut through wood and your chain will make cleaner cuts with sharp blades. A chainsaw chain can be sharpened multiple times without much of a cost.
How many times can you sharpen a chainsaw?
Cutters can be sharpened up to 10 times or more before the chain needs replacing. If your cutters are worn unevenly after a few sharpenings, a professional can regrind them to uniform shape. If you use the same chain for a few years, then buy a new one, the new one won’t mesh smoothly with the sprocket and bar.
How often should you change the bar on a chainsaw?
If you are looking for a general idea for how often you should replace a chainsaw bar, a rule of thumb is to replace the bar of your chainsaw once after you have gone through three chains on the same bar.
What type of chainsaw chain cuts the fastest?
A full chisel chain is a chain with square cornered teeth, and they’re known for being the fastest cutting blade shape available. A full chisel chain also has a higher number of teeth than other chain options(full chisel is also known as a standard chisel chain).