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scotspine1
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Everything posted by scotspine1
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for sure Stevie, but so long as you know it's going to happen and you're in a safe work position it's all good. yup, for mistahbenn in the good ole US of A
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new school would work well, rig it up, trim away all excess branches near garage leaving the main bulk of the big limb, keep both lines tensioned (no lifting) sever butt end......LIMB MOVES TO THE RIGHT AND IS NOW SUSPENDED...........trim any branches touching roof then use a tag line (green) to pull the tip end off the garage then just lower both lines, job done. Yellow dot is TIP for climbing line.
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new school, old school
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Spoke too soon - BBC News - Perth High School pine tree memorial pine felled
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It isn't all bad news out there David, some people get it BBC News - Scottish oak in Perthshire to enter European contest 'Rory Syme from the Woodland Trust Scotland said: "Niel Gow's Oak is a perfect example of a tree that has great story to tell and a real connection with people.'
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that's how normal, healthy Cedar of Lebanon branches or stems react when a top cut is made, it's a brittle wood. There must have been other options available to retain that tree.
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Drew, so it wont open like a Grillion? Steve, I'd give the zillon a go on a DdRT setup as it looks simple like a hitch with a well designed single attachment point, not too bulky and in your face like the zigzag. Mark, the ship sailed with zig zag for sure, it's in la la land, send me a zillon, if I like it I'll buy it
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I know what you mean about the zig zag, there's little resistance when advancing up the tree/off load which allows self tending, but if you can imagine the zillon when you're advancing up the tree...if it drops into the right position when unloaded...and with enough weight on the running end it could self tail. Will find out soon enough when Mark sends me one to try out
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it doesn't look like it would sit in the same position as a grillion under load, on the pic on the right it looks like the running end would sit facing down which means there's a possibility of self tailing no? too much of a bend? or am I seeing it wrong? the running end of a grillion faces very upwards under load. on the Petzl supplied lanyard? that's not good. .
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the zillon looks like a better idea than the zig zag for a main climbing line, take it off that lanyard, set it up on a climbing line and use a biner on the working end to attach to your harness.
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£2200 + VAT = £2640.00 if you're not VAT registered............ a £100 Buckingham Port A Wrap is all I'll ever need.
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Andy, I can see where you're coming from, and have heard that old argument before, but there are many pro climbers who'll take a Silky/Jameson polesaw up into the tree now and again for certain jobs, it's called being efficient. Every few years we take out hazard deadwood from this Lime and other similar trees round this communal garden, the polesaw will always be sitting there handy on the deck ready to be sent up if needed. This isn't because the climber can't reach the ends of the branches it's because a good climber will spot an opportunity to use a polesaw that'll save him time and energy ie, being able to reach the branch above and below the one you're standing on to knock out a few bits of dead.
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It's not very useful at all unless you're on I'm a Celebrity and you have to put your hand into a tank of Scorpions to find the tokens.
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Have used a powered pole-chainsaw whilst climbing during storm damage work (hung up, tangled branches under a colossal amount of tension/compression etc) the idea being is that you're removing yourself from near the danger zone where you could get trapped or whacked in the face if you were using the regular chainsaw etc. Occasionally use a polesaw during pruning work (crown reductions/deadwooding) sometimes just the single lightest extension of the Hayachi. Knowing when to use polesaw in the tree and using it well is a real skill that should not be sniffed at. polesaws = great tools
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Tree's failing?.....So move the target.
scotspine1 replied to David Humphries's topic in Tree health care
I think David's in a privileged position working where he does. We attended this windblown Poplar in the centre of Glasgow recently which had fallen across one of the busiest streets in town. I noticed a large part of the roots were still intact and suggested to the city tree officer that we leave the tree as it was and just build a bridge over the trunk.............'No' was the short answer.
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Tree's failing?.....So move the target.
scotspine1 replied to David Humphries's topic in Tree health care
Great work David, over the years in this job there's been one tree in particular I've noticed that seems to adapt well to being windblown or storm damaged, Larch. Can think of a few down in fields and open spaces that send out these reiterations like the ones seen on this lateral branch below, like mini trees. Seen these reiterations on other species as well, but Larch seems to thrive on it.
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It's quite common for US companies with their own bucket trucks to rig out big tops at the bucket's maximum height regardless of the height of the tree (within reason). The bucket was at full extension so he couldn't go higher and piece it out smaller - he went for the big top and it failed dramatically. The fundamental problem was the poor rigging anchor point on the right hand tree (he chose the weakest side of that double stem to rig from) - when the guy running the port a wrap could not let the top run any further (or at all) it meant the force of the top falling had to go somewhere and it went straight into pulling the two anchor trees together leading to the failure of the weak anchor point on the right hand tree. The use of blocks would probably not have prevented the failure. .
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HSE and the Arb Association are now promoting that technique as the number one choice for work positioning, they say it represents a major leap forward in safety in arboricultural operations. Training providers are being briefed in the technical aspects of the system and from Feb 1st 2014 it will be mandatory for all treework operations in the UK. The NPTC will be calling the award - Unit 56 'work positioning from a crane with fall arrest harness' Mandatory refresher every 6 months. .
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speaking of 60cc saws, just looked on the UK Jonsered site and they aren't selling the Jred version of the 560xp (the cs2260). Pity that, cause Jonsered's pro saws are usually more robust than their Husky counterparts, same power and weight as the 560xp. Would imagine Husky don't want this saw being sold in the UK as they already have the 560xp out there.
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cable snaps on crane removal at 1.27 - [ame=http://www.youtube.com/watch?v=KtSXsMiWTHA&list=FL7T8BWN1YBbWCpxi1tdBI3g]Crane snapping Cable almost killing me! - YouTube[/ame]
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I hear you.
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this one? yeah, saw that, at what point would you have made the decision to turned that tree into a mono/habitat stick had st jude not happened? would it all be based on Mattheck's t/R ratio? and VTA? or some good old fashioned learned instinct that you've picked up over the years looking at trees/failures like that?
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yes, this split round was from about 2 ft below crown break
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Cheers everyone, there are plans for replanting with various new trees, always sad to see a big tree like that go, but there was no scope for a heavy reduction, not where the tree was situated. ha ha, tyres were only there to stop it rolling onto the lawn, things aint always as they seem Benny boy lucky to have those areas to drop the branches into though there you David, hows this? some mycelial action there too I'd figured it was gonna look like this at the base, had I suspected the decay was right through the tree, it'd have been a MEWP job. Having said that, there was a method and reasoning behind the order in which the branches came down which would've also been applied if I'd used a MEWP.
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Tree came down due to Ganoderma applanatum Couldn't have felled the whole tree as would've damaged hard landscaping in garden, or if felled it the other way it would've destroyed the tarmac in the carpark. This is a straight up and down cut branches off then fell stem scenario, nothing out of the ordinary, thought some folk might like to see it anyway - [ame=http://www.youtube.com/watch?v=iCLSAUY-DNI&feature=youtube]Ganoderma Beech - YouTube[/ame]
