Pete Mctree
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Everything posted by Pete Mctree
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16mm double esterlron with a porta-wrap, which is as important as your choice of line. No point wrecking it at the knot & it failing prior to the winch. Matching components is the key
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I missed that too.
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If you can get an original 372xp the go for it. The newer ones with the different engine are a fraction of the saw & very disappointing.
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Burn the head & then get digging !
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I tried to illustrate the point in my previous post, however I think I need to expand upon it. As I understand the process of climbing, we are taught to climb the tree, remaining secured to it as we progress. Our climbing systems are therefore primarily work positioning. If however we climb "on rope" then we would have to adhere to the same rules & regulations as the IRATA guys under the WAHR regulations. So whether you work SRT or dDRT, when you write you RA's & methods of work etc you have to be concise & accurate in your terminology. Either can be be justified in work positioning or access in my opinion as I could not find an exclusion. Here is a good place to start; Tree climbing
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We run 2 land force machines. They are outdated & unproductive in comparison to modern machines. The in-feed system is a serious weakness. They are relatively reliable however, if well maintained & have a good engine options. As a budget/low productivity machine, they. may be worth considering
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What if the rope is being used as fall arrest & work positioning ass opposed to access? We climb. The tree, not the rope in my book
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A bang on the head never made anyone smarter!
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My favourite firewood bar non.
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Rope Wrench & Zig Zag?
Pete Mctree replied to Old Mill Tree Care's topic in SRT (Single Rope Technique)
Unicender? -
Nice tidy cutting Tim. Good job
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Looks like a straight fell to me......
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What condition is the ISC block in? Does it still turn under heavy loading?
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2 out of 8 of us at work are.
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Good job Allan
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August makes some cool videos !
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Yes I would climb it, only if there was no MEWP access.
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Where did people buy them from and what are the approx costs please?
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I will try & explain the picture. It illustrates the theoretical force on the anchor point "A" when a block "I" is suspended from it. From that a block "II" is suspended. Not that uncommon occurrence when you want your rigging point to be set & retrievable from the ground. We already know that the load at "B" is twice the load suspended, but what about the load at "A" ? If you work it out as before - it is Double the load, so the force will be twice that exerted at "B", which is twice that exerted by the load. Four times the load at the anchor point "A" is a lot of force if you do not manage it !!! Hope that makes sense
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Depends on how you use the pulley. If you suspended the system illustrated from another identical system you would double the loading again. Therefore quadrupling the force applied by the weight at the anchor point. (Sorry I don't know how to draw pics to illustrate my point)
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It is correct, so if you keep adding pulleys & lines you will snap your anchor point. Think, we use this function to a positive use I.e when we set up mechanical advantage with a 5 to 1 pulley system to pull a tree over. Make sense?
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If one ton is suspended from the pulley, an equivilant force is acting on the fixed point to keep it motionless. So you are correct - a one ton load on either leg will place a load of 2 tons onthe pulley - doubling it
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Honey Brothers did, but I cannot see it now. Buxtons do I think
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Huge pick.
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I do tree work - simples.
