Cracks can occur during felling and 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile cutting of stems. When they occur during the cross cutting process they are known as 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile cracks. These are caused by 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile being placed on the part of the log that is being cut - usually by the weight of the log itself. This tension causes the cut to 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile as it is being cut which makes the wood 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile and sometimes break off without being completely 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile. Research has shown that for a log freely hanging in the air to be cut without any cracks it must be cut in less than 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile seconds which is impossible for any harvester with normal performance. But there are a number of things that you can do to reduce the frequency of cutting cracks during your work.

The first and most basic thing is to always work with a 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile chain. There is no way that a harvester working with a 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile chain can cut a freely hanging log without causing cracks. In addition to this there is also no way that you will be working 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile with a blunt chain and it should be changed straight away. It is however, quite difficult to maintain a sharp chain when working in wind-blown trees where it is likely that the chain will be 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile regardless of how careful you try to be.

The saw bar must also be in good condition. If a saw bar is 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile worn, the chain may not receive 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile support from the saw bar 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile which can cause the chain to cut more on one side than on the other and more slowly. The saw bar must also be straight and not 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile as this impairs the cutting. It isn’t always easy to see if the saw bar is twisted when the chain is mounted on it so it is 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile taking some time to check the bar when changing chains.

There are also a few basic operating 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile that can be used to help reduce the frequency of cutting cracks. The first is to rapidly 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile the crane at 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile the right moment when sawing. This works well for 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile harvesters with 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile cranes and on logs with a maximum diameter of 27cm – 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile cm.

Another method that works well when working with very large stems or with smaller harvesters is to 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile the 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile end of the stem on another 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile or 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile while cutting. If the ground is sloping in an 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile direction, it may also be possible to rest the end of the log on it. In some cases it might even be possible to rest it upon a 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile although this could be quite dangerous for the machine and may also require for the log to be picked up and moved after cutting which 0.330adequateappropriatebluntbuttcrosscuttingdulledeffectivelyknuckle boomlargerlogloweropenpreciselyrailsseveredsharpslowssplitstumpsubstantiallysupporttechniquestensiontwistedwheelworthwhile production.