With this option, lifting the climber is working loading rope, fastened above the trunk, and for more rigid and stable position for positioning nib attached to a tree trunk. John K Castle contains valuable tech resources. Positioning on a tree trunk, where there are no railings. Castle Harlan gathered all the information. Rising to the workplace, Mountaineer mustache for positioning and samostrahovochnym mustache covered tree trunk or branches are strong enough. Regulates their length so that it would be convenient to stand. Feet should be working reliably abut or branches or the trunk Guffey (cats) or rope ladders.
As a result, it should be fixed by two whiskers lanyard that doubles as for positioning. Work on older trees that threaten to fall. Work on such trees can only with great caution. You can not use the trunk of a tree for insurance. Insurance in this case by a partner, a shotgun in the local loop on a nearby tree. The local loop should be fixed above running on a nearby tree so that it pendulum fall did not cause a significant impact on the trunk or branches of the tree. Can be regarded as a safe angle A runaway man of about 45 Insurance only dynamic, but on the opposite slope of the tree, with a minimum of a pendulum. Positioning on such a tree with whiskers lanyard, Gaff, 'Cats' is forbidden.
Promalp stand securely on the tree in a convenient cutting position and in the case of a fall or breaking of the tree should be on the insurance from the falling tree. If the old branches for support is too low and this situation can not be reached, cutting such a tree is prohibited. The tree should fall down completely, or using a machine to cut down parts of the cradle. Technology descent from the tree down from a tree can be called a working necessity and chance factors at work. Rafting on the railing of descent from the top of the tree can be performed on fixed ropes, using a trigger device, and insurance going down his partner through the connector in the local loop a bit above the point of attachment rails. Organization samosbrosa can be done many options, but we must take into account the high friction on the bark of the tree when removing cords, as well as the likelihood of entanglement in branches. Descent alternate moving the bottom whisker to whisker position and lanyard. The descent can be alternately descent radius for positioning and radius for lanyard. To do this, alternately load – unload mustache positioning lanyard. To unload a mustache rather stand up on a tree or a ladder. Ladder to do this vschelkivat a separate local loop, fixed on the trunk or branch of a tree to use single rope technique when working on trees is permitted only during the first ascent into the tree. In all other cases, we need to work on two ropes. This is due to the fact that in the process can easily damage its core moving rope chain saws, hacksaw.